Vestibulocochlear Nerve
Vestibulocochlear Nerve Diseases
Facial Nerve
Facial Nerve Diseases
Vestibular Nerve
Ear, Inner
Subarachnoid Space
Labyrinth Diseases
Nerve Compression Syndromes
Magnetic Resonance Imaging
Sciatic Nerve
Role of stromal cell-derived factor-1 expression in the injured mouse auditory nerve. (1/2)
(+info)The efficacy of N-acetylcysteine to protect the human cochlea from subclinical hearing loss caused by impulse noise: a controlled trial. (2/2)
(+info)The vestibulocochlear nerve, also known as the 8th cranial nerve, is responsible for hearing and balance. It has two parts: the cochlear part, which is associated with hearing, and the vestibular part, which is associated with balance.
Vestibulocochlear nerve injuries refer to damages or injuries to this nerve, which can result in hearing loss, tinnitus (ringing in the ears), vertigo (a spinning sensation), disequilibrium (unsteadiness), and other balance-related issues. These injuries can occur due to various reasons, such as head trauma, acoustic neuroma (a benign tumor that develops on this nerve), infection, inflammation, or complications from surgery.
The severity of the injury can vary, leading to different symptoms and levels of disability. In some cases, vestibulocochlear nerve injuries may be treated with medication, therapy, or surgery, while in other cases, the damage may be permanent.
The vestibulocochlear nerve, also known as the auditory-vestibular nerve or cranial nerve VIII, is a paired peripheral nerve that transmits sensory information from the inner ear to the brain. It has two distinct parts: the cochlear part and the vestibular part.
The cochlear part is responsible for hearing and transmits sound signals from the cochlea to the brain. The vestibular part, on the other hand, is responsible for maintaining balance and spatial orientation by transmitting information about head movement and position from the vestibular apparatus (utricle, saccule, and semicircular canals) in the inner ear to the brain.
Together, these two parts of the vestibulocochlear nerve play a crucial role in our ability to hear and maintain balance. Damage to this nerve can result in hearing loss, tinnitus (ringing in the ears), vertigo (dizziness), or balance problems.
The vestibulocochlear nerve, also known as the 8th cranial nerve, is responsible for transmitting sound and balance information from the inner ear to the brain. Vestibulocochlear nerve diseases refer to conditions that affect this nerve and can result in hearing loss, vertigo, and balance problems.
These diseases can be caused by various factors, including genetics, infection, trauma, tumors, or degeneration. Some examples of vestibulocochlear nerve diseases include:
1. Vestibular neuritis: an inner ear infection that causes severe vertigo, nausea, and balance problems.
2. Labyrinthitis: an inner ear infection that affects both the vestibular and cochlear nerves, causing vertigo, hearing loss, and tinnitus.
3. Acoustic neuroma: a benign tumor that grows on the vestibulocochlear nerve, causing hearing loss, tinnitus, and balance problems.
4. Meniere's disease: a inner ear disorder that causes vertigo, hearing loss, tinnitus, and a feeling of fullness in the ear.
5. Ototoxicity: damage to the inner ear caused by certain medications or chemicals that can result in hearing loss and balance problems.
6. Vestibular migraine: a type of migraine that is associated with vertigo, dizziness, and balance problems.
Treatment for vestibulocochlear nerve diseases varies depending on the specific condition and its severity. It may include medication, physical therapy, surgery, or a combination of these approaches.
The facial nerve, also known as the seventh cranial nerve (CN VII), is a mixed nerve that carries both sensory and motor fibers. Its functions include controlling the muscles involved in facial expressions, taste sensation from the anterior two-thirds of the tongue, and secretomotor function to the lacrimal and salivary glands.
The facial nerve originates from the brainstem and exits the skull through the internal acoustic meatus. It then passes through the facial canal in the temporal bone before branching out to innervate various structures of the face. The main branches of the facial nerve include:
1. Temporal branch: Innervates the frontalis, corrugator supercilii, and orbicularis oculi muscles responsible for eyebrow movements and eyelid closure.
2. Zygomatic branch: Supplies the muscles that elevate the upper lip and wrinkle the nose.
3. Buccal branch: Innervates the muscles of the cheek and lips, allowing for facial expressions such as smiling and puckering.
4. Mandibular branch: Controls the muscles responsible for lower lip movement and depressing the angle of the mouth.
5. Cervical branch: Innervates the platysma muscle in the neck, which helps to depress the lower jaw and wrinkle the skin of the neck.
Damage to the facial nerve can result in various symptoms, such as facial weakness or paralysis, loss of taste sensation, and dry eyes or mouth due to impaired secretion.
Facial nerve diseases refer to a group of medical conditions that affect the function of the facial nerve, also known as the seventh cranial nerve. This nerve is responsible for controlling the muscles of facial expression, and it also carries sensory information from the taste buds in the front two-thirds of the tongue, and regulates saliva flow and tear production.
Facial nerve diseases can cause a variety of symptoms, depending on the specific location and extent of the nerve damage. Common symptoms include:
* Facial weakness or paralysis on one or both sides of the face
* Drooping of the eyelid and corner of the mouth
* Difficulty closing the eye or keeping it closed
* Changes in taste sensation or dryness of the mouth and eyes
* Abnormal sensitivity to sound (hyperacusis)
* Twitching or spasms of the facial muscles
Facial nerve diseases can be caused by a variety of factors, including:
* Infections such as Bell's palsy, Ramsay Hunt syndrome, and Lyme disease
* Trauma or injury to the face or skull
* Tumors that compress or invade the facial nerve
* Neurological conditions such as multiple sclerosis or Guillain-Barre syndrome
* Genetic disorders such as Moebius syndrome or hemifacial microsomia
Treatment for facial nerve diseases depends on the underlying cause and severity of the symptoms. In some cases, medication, physical therapy, or surgery may be necessary to restore function and relieve symptoms.
The vestibular nerve, also known as the vestibulocochlear nerve or cranial nerve VIII, is a pair of nerves that transmit sensory information from the balance-sensing structures in the inner ear (the utricle, saccule, and semicircular canals) to the brain. This information helps the brain maintain balance and orientation of the head in space. The vestibular nerve also plays a role in hearing by transmitting sound signals from the cochlea to the brain.
The inner ear is the innermost part of the ear that contains the sensory organs for hearing and balance. It consists of a complex system of fluid-filled tubes and sacs called the vestibular system, which is responsible for maintaining balance and spatial orientation, and the cochlea, a spiral-shaped organ that converts sound vibrations into electrical signals that are sent to the brain.
The inner ear is located deep within the temporal bone of the skull and is protected by a bony labyrinth. The vestibular system includes the semicircular canals, which detect rotational movements of the head, and the otolith organs (the saccule and utricle), which detect linear acceleration and gravity.
Damage to the inner ear can result in hearing loss, tinnitus (ringing in the ears), vertigo (a spinning sensation), and balance problems.
The subarachnoid space is the area between the arachnoid mater and pia mater, which are two of the three membranes covering the brain and spinal cord (the third one being the dura mater). This space is filled with cerebrospinal fluid (CSF), which provides protection and cushioning to the central nervous system. The subarachnoid space also contains blood vessels that supply the brain and spinal cord with oxygen and nutrients. It's important to note that subarachnoid hemorrhage, a type of stroke, can occur when there is bleeding into this space.
Labyrinth diseases refer to conditions that affect the inner ear's labyrinth, which is the complex system of fluid-filled channels and sacs responsible for maintaining balance and hearing. These diseases can cause symptoms such as vertigo (a spinning sensation), dizziness, nausea, hearing loss, and tinnitus (ringing in the ears). Examples of labyrinth diseases include Meniere's disease, labyrinthitis, vestibular neuronitis, and benign paroxysmal positional vertigo. Treatment for these conditions varies depending on the specific diagnosis but may include medications, physical therapy, or surgery.
Peripheral nerve injuries refer to damage or trauma to the peripheral nerves, which are the nerves outside the brain and spinal cord. These nerves transmit information between the central nervous system (CNS) and the rest of the body, including sensory, motor, and autonomic functions. Peripheral nerve injuries can result in various symptoms, depending on the type and severity of the injury, such as numbness, tingling, weakness, or paralysis in the affected area.
Peripheral nerve injuries are classified into three main categories based on the degree of damage:
1. Neuropraxia: This is the mildest form of nerve injury, where the nerve remains intact but its function is disrupted due to a local conduction block. The nerve fiber is damaged, but the supporting structures remain intact. Recovery usually occurs within 6-12 weeks without any residual deficits.
2. Axonotmesis: In this type of injury, there is damage to both the axons and the supporting structures (endoneurium, perineurium). The nerve fibers are disrupted, but the connective tissue sheaths remain intact. Recovery can take several months or even up to a year, and it may be incomplete, with some residual deficits possible.
3. Neurotmesis: This is the most severe form of nerve injury, where there is complete disruption of the nerve fibers and supporting structures (endoneurium, perineurium, epineurium). Recovery is unlikely without surgical intervention, which may involve nerve grafting or repair.
Peripheral nerve injuries can be caused by various factors, including trauma, compression, stretching, lacerations, or chemical exposure. Treatment options depend on the type and severity of the injury and may include conservative management, such as physical therapy and pain management, or surgical intervention for more severe cases.
Nerve compression syndromes refer to a group of conditions characterized by the pressure or irritation of a peripheral nerve, causing various symptoms such as pain, numbness, tingling, and weakness in the affected area. This compression can occur due to several reasons, including injury, repetitive motion, bone spurs, tumors, or swelling. Common examples of nerve compression syndromes include carpal tunnel syndrome, cubital tunnel syndrome, radial nerve compression, and ulnar nerve entrapment at the wrist or elbow. Treatment options may include physical therapy, splinting, medications, injections, or surgery, depending on the severity and underlying cause of the condition.
Medical Definition:
Magnetic Resonance Imaging (MRI) is a non-invasive diagnostic imaging technique that uses a strong magnetic field and radio waves to create detailed cross-sectional or three-dimensional images of the internal structures of the body. The patient lies within a large, cylindrical magnet, and the scanner detects changes in the direction of the magnetic field caused by protons in the body. These changes are then converted into detailed images that help medical professionals to diagnose and monitor various medical conditions, such as tumors, injuries, or diseases affecting the brain, spinal cord, heart, blood vessels, joints, and other internal organs. MRI does not use radiation like computed tomography (CT) scans.
The sciatic nerve is the largest and longest nerve in the human body, running from the lower back through the buttocks and down the legs to the feet. It is formed by the union of the ventral rami (branches) of the L4 to S3 spinal nerves. The sciatic nerve provides motor and sensory innervation to various muscles and skin areas in the lower limbs, including the hamstrings, calf muscles, and the sole of the foot. Sciatic nerve disorders or injuries can result in symptoms such as pain, numbness, tingling, or weakness in the lower back, hips, legs, and feet, known as sciatica.
Cranial nerve injuries refer to damages or trauma to one or more of the twelve cranial nerves (CN I through CN XII). These nerves originate from the brainstem and are responsible for transmitting sensory information (such as vision, hearing, smell, taste, and balance) and controlling various motor functions (like eye movement, facial expressions, swallowing, and speaking).
Cranial nerve injuries can result from various causes, including head trauma, tumors, infections, or neurological conditions. The severity of the injury may range from mild dysfunction to complete loss of function, depending on the extent of damage to the nerve. Treatment options vary based on the type and location of the injury but often involve a combination of medical management, physical therapy, surgical intervention, or rehabilitation.
Brainstem9
- The "quarterback" for dizziness is an area in the lower part (medulla oblongata) of the brainstem, in a tight collection of nerve cells termed the vestibular nuclei ( vestibular nucleus is the singular). (drjosephpengecir.com)
- Deficits of the vestibular system can be due to problems with the peripheral nervous system (i.e. the inner ear and/or the nerve that travels to the brainstem) or in the central nervous system (i.e. neural pathways that travel throughout the brain and spinal cord). (vestibular.org)
- The lesions in central vertigo involve the brainstem vestibulocochlear nerve nuclei. (findmeacure.com)
- The NASEM determined that, "from a neurologic standpoint, this combination of distinctive, acute, audio-vestibular symptoms and signs suggests localization of a disturbance to the labyrinth or the vestibulocochlear nerve or its brainstem connections. (lawfaremedia.org)
- BPPV involves a problem with either the inner ear or the vestibulocochlear nerve, the cranial nerve that communicates between the ear and the brainstem. (timberlanept.com)
- The hypoglossal nerve arises as a number of small rootlets from the front of the medulla , the bottom part of the brainstem , [1] [2] in the anterolateral sulcus which separates the olive and the pyramid . (iiab.me)
- The hypoglossal nerve emerges as several rootlets (labelled here as number 12) from the olives of the medulla (labelled 13), part of the brainstem . (iiab.me)
- For more complex surgical cases, where auditory brainstem response (ABR) may be monitored as well as multiple cranial motor nerves, a multichannel system with averaging capabilities should be used. (evokedpotential.com)
- Discharges from the facial motor area are carried through fascicles of the corticobulbar tract to the internal capsule, then through the upper midbrain to the lower brainstem, where they synapse in the pontine facial nerve nucleus. (medscape.com)
Cochlear6
- Idiopathic (unexplained) hearing loss 119 SNHL children having cochlear Student t-test was used to determine may be the result of an infectious disease implant surgery, ranging in age from 3 significant differences in means and or an injury [1]. (who.int)
- The lesion of the auditory nerve (neural) is uncommon and this cannot be differentiated from cochlear losses using clinical symptoms alone [ 2 ]. (ejao.org)
- The differential diagnosis of various causes of SNHL is essential as lesion can happen at various structures, including injury to outer hair cells (OHCs), inner hair cells (IHCs), auditory dyssynchrony, and tumors in the cochlear vestibular nerve. (ejao.org)
- The cochlear portion of the nerve transmits information about hearing. (revitalhealth.ca)
- My Trigeminal, Facial, Abducens and Vestibular cochlear nerve was badly damaged. (varunaraina.com)
- The COCHLEAR NERVE is typically spared and HEARING LOSS and TINNITUS do not usually occur. (sdsu.edu)
Tinnitus6
- Tinnitus is a common problem, caused when the nerve that connects the inner ear with the brain, known as the vestibulocochlear nerve, is damaged due to prolonged loud noise, injury or deficiencies in blood supply. (techinvestornews.io)
- Known as somatic tinnitus, injury to parts of the body including the head, neck and jaw have been linked to very severe, loud forms of temporary tinnitus. (thehealthboard.com)
- Another common cause of somatic tinnitus is damage to the vestibulocochlear nerve, also called the eighth nerve. (thehealthboard.com)
- This nerve lies midway between the ear and the brain and damage to the nerve caused by viral infections has been linked to the occurrence of temporary tinnitus. (thehealthboard.com)
- I had Otorrhea, Rhinorrhea, Facial Palsy, Double Vision, Labored breathing, hearing loss with tinnitus and GCS of around 9 -10 (Glasgow coma scale and score of 9 to 12 is moderate brain injury)! (varunaraina.com)
- Vestibulocochlear nerve When both divisions of the vestibulocochlear nerve are affected by disease, symptoms may include ringing in the ear ( tinnitus ), a sensation of spinning ( vertigo ), and other symptoms such as deafness. (symptoma.com)
Vertigo11
- Vertigo stems from a problem with the inner ear, brain, or sensory nerve pathway. (medicalnewstoday.com)
- Did you know that many people who seek vertigo remedies first notice their symptoms after developing a whiplash injury? (uppercervicalawareness.com)
- If you recently suffered from a whiplash injury, it's a good idea to look out for its symptoms like vertigo attacks. (uppercervicalawareness.com)
- Why Do Vertigo Attacks Get Triggered By Whiplash Injuries? (uppercervicalawareness.com)
- They make a case for cervical vertigo being linked to cervical spine spondylosis and/or to an injury to a spondylotic cervical spine. (drjosephpengecir.com)
- Vertigo is usually associated with a problem in the inner ear balance mechanisms (vestibular system), in the brain, or with the nerve connections between these two organs. (findmeacure.com)
- According to chiropractors, ligamental injuries of the upper cervical spine can result in head-neck-joint instabilities which can cause vertigo. (findmeacure.com)
- Surgery may be needed in severe cases causing vertigo such as tumors or brain injury. (joomdactor.com)
- Also, vertigo increases fall risk and the serious injuries associated with falls. (timberlanept.com)
- Vertigo is not a condition itself but rather is a symptom of an underlying condition typically associated with the inner ear, brain, or sensory nerve pathway. (enticare.com)
- In addition to these common underlying conditions that produce vertigo as a symptom, vertigo can also be caused by: migraines, head injuries, multiple sclerosis, brain stem disease, and strokes. (enticare.com)
Cranial Nerv2
- Samples were transferred and kept fro- nerve (cranial nerve VIII), the inner zen at -20 °C in our research laboratory. (who.int)
- The name of the nerve that innervates the ear is the vestibulocochlear nerve, also known as Cranial Nerve VIII. (drjosephpengecir.com)
Eighth3
- For instance, ringing ears that are caused by irritation to the eighth nerve can sometimes be effectively treated with anti-convulsant medications. (thehealthboard.com)
- Sensory information from the inner ear is relayed to the brain via the vestibular portion of the eighth cranial nerve (CNVIII), which is also called the vestibulocochlear nerve. (revitalhealth.ca)
- It also interacts with the third and fourth cranial nerves, oculomotor and trochlear, respectively, as well as with the eighth cranial nerve (vestibulocochlear nerve) to perform conjugate eye movements (discussed later). (brainmadesimple.com)
Trauma8
- In blunt trauma, the facial nerve is the most commonly injured cranial nerve. (wikipedia.org)
- Physical trauma, especially fractures of the temporal bone, may also cause acute facial nerve paralysis. (wikipedia.org)
- The facial paralysis can follow immediately the trauma due to direct damage to the facial nerve, in such cases a surgical treatment may be attempted. (wikipedia.org)
- Neurotologic complications are thought to be secondary to: stretching of CN VII and VIII during cerebellar retraction, direct trauma to CN VII or VIII, excessive manipulation of vasculature (especially the labyrinthine artery and anteroinferior cerebellar artery) or neocompression of nerves with the spacer placement [14,15]. (heraldopenaccess.us)
- Damage to the nerve or the neural pathways which control it can affect the ability of the tongue to move and its appearance, with the most common sources of damage being injury from trauma or surgery, and motor neuron disease . (iiab.me)
- The nerve may be damaged by closed or penetrating CRANIOCEREBRAL TRAUMA or by facial trauma involving the orbit. (uchicago.edu)
- Injuries to the optic nerve induced by a trauma to the face or head. (uchicago.edu)
- Relatively minor compression of the superior aspect of orbit may also result in trauma to the optic nerve. (uchicago.edu)
VIII2
- The lesions, or the damaged areas, affect the inner ear or the vestibular division of the auditory nerve or (Cranial VIII nerve). (findmeacure.com)
- This fasciculus connects the abducent nerve nucleus with the nuclei of the oculomotor nerve (CN III), trochlear nerve (CN IV), and vestibulocochlear nerve (CN VIII). (brainmadesimple.com)
Inflammation of the vestibular nerve2
- An infection causes vestibular neuritis , which is inflammation of the vestibular nerve. (medicalnewstoday.com)
- similar to labyrinthitis, vestibular neuritis is caused by an infection that produces the inflammation of the vestibular nerve. (enticare.com)
Tumor1
- Pressure on this nerve may also be caused by a tumor or multiple sclerosis (MS). (greatgreenwedding.com)
Anatomy3
- Anatomy of the facial and vestibulocochlear nerves in the internal auditory canal. (ajnr.org)
- The surgical anatomy and landmarks of the facial nerve. (medscape.com)
- In the newborn, the facial nerve anatomy approximates that of an adult, except for its location in the mastoid, which is more superficial. (medscape.com)
Innervates2
- The hypoglossal nerve is the twelfth cranial nerve , and innervates all the extrinsic and intrinsic muscles of the tongue , except for the palatoglossus which is innervated by the vagus nerve . (iiab.me)
- Because the vagus nerve innervates multiple organs, injuries in the nerve fibers may result in any gastrointestinal organ dysfunction downstream of the injury site. (jefferson.edu)
Organs5
- The body has limited ability to repair damage to the vestibular organs, although the body can often recover from vestibular injury by having the part of the brain that controls balance recalibrate itself to compensate. (greatgreenwedding.com)
- Ears are delicate organs that can be damaged by physical injuries, bacteria or even changes in the environment. (livescience.com)
- Consequently, this leads to abnormal fluid buildup in the inner ear and the compression or irritation of your vestibular organs and the vestibulocochlear nerve. (uppercervicalawareness.com)
- Tiny organs in the inner ear respond to gravity and the position of a person by sending nerve signals to the brain. (grocare.com)
- There are small organs and nerves in the inner ear that send messages (sound, motion, position) to the brain, which allow us to maintain balance. (enticare.com)
Neural1
- The reason for this medical condition is the damages that occur in the inner part of the ear (it can be in the cochlea or in the cranial nerve (vestibulocochlear), or in the neural section. (vikramenthospital.com)
Palsy4
- 2585 Bell's palsy is the most common cause of acute facial nerve paralysis. (wikipedia.org)
- Reactivation of herpes zoster virus, as well as being associated with Bell's palsy, may also be a direct cause of facial nerve palsy. (wikipedia.org)
- In the case of inflammation the nerve is exposed to edema and subsequent high pressure, resulting in a periferic type palsy. (wikipedia.org)
- In patients with mild injuries, management is the same as with Bell's palsy - protect the eyes and wait. (wikipedia.org)
Fibers4
- The glossopharyngeal nerve receives input from the general and special sensory fibers in the back of the throat. (greatgreenwedding.com)
- Facial colliculi are actually rounded, bulged structures that are formed by the winding of fibers of the facial nerve around the nuclei of abducent nerves. (brainmadesimple.com)
- Three thousand of the nerve fibers are somatosensory and secretomotor and make up the nervus intermedius. (medscape.com)
- Relating to the nerve fibers leading from the occipital lobe of the cerebral cortex to the thalamus. (theodora.com)
Auditory nerve3
- Can auditory nerve damage be repaired? (greatgreenwedding.com)
- Once damaged, your auditory nerve and cilia cannot be repaired. (greatgreenwedding.com)
- SNHL results from damage to the cochlea, auditory nerve, or central nervous system. (ejao.org)
Brain27
- The vestibulocochlear nerve sends balance and head position information from the inner ear (see left box) to the brain. (greatgreenwedding.com)
- When the nerve becomes swollen (right box), the brain can't interpret the information correctly. (greatgreenwedding.com)
- Problems rooted in your brain, such as traumatic brain injury. (greatgreenwedding.com)
- Tiny hair cells in this organ translate the vibrations into electrical impulses that are carried to the brain by sensory nerves. (livescience.com)
- The inner ear is connected to the vestibulocochlear nerve, which carries sound and equilibrium information to the brain. (livescience.com)
- This nerve sends information to the brain about head motion, position, and sound. (medicalnewstoday.com)
- Certain brain injuries or strokes can cause the perception of dizziness . (drjosephpengecir.com)
- However, more commonly, people with dizziness do not have any injury to their brain. (drjosephpengecir.com)
- In future, Neuralink prostheses might help people with various kinds of neurological disorders where there is a disconnect or malfunction between the brain and the nerves that serve the body. (techinvestornews.io)
- It may also be useful in treating obsessive compulsive disorder, repairing brain injuries, and treat conditions such as autism or degenerative diseases of the nervous system using deep brain stimulation. (techinvestornews.io)
- Do you know someone who has suffered a traumatic brain injury? (insighthealthapps.com)
- Analyze the various ways that they have been affected energetically with frequencies for "diffuse axonal injury", "brain plasticity", "shearing", "intracranial pressure" and more. (insighthealthapps.com)
- The accurate relay of information from the eyes along the cranial nerve called the optic nerve (CN II) to the brain is also required. (revitalhealth.ca)
- If one inner ear is affected by disease or injury then the sensory input being sent to the brain will falsely indicate movement from that vestibular system. (revitalhealth.ca)
- Cranial nerves are so named because they originate directly from the brain. (brainmadesimple.com)
- Most of the cranial nerves originate from the brain stem. (brainmadesimple.com)
- Abducens nerve emerges from the brain stem in the posterior cranial fossa from a groove at the junction of the pons and medulla oblongata medial to the facial nerve exit. (brainmadesimple.com)
- We need to allow an adult or a student athlete to understand that their brain has three components of potential injury. (thenielsenclinic.com)
- The brain also has connections that come out to the ears, and this is the cranial nerve eight or the vestibulocochlear nerve. (thenielsenclinic.com)
- A subtle downward trend of these hormones will give us an indication of potential injury at this area because of that shifting mechanism where the brain is slid across this holding spot of the pituitary. (thenielsenclinic.com)
- As we look at concussion, it can become very, very complex, but a trained professional can help us in seeing where can we heal from a brain injury. (thenielsenclinic.com)
- The condition affects the working of the vestibulocochlear nerve, which sends information to your brain, affecting head motion, position, and sound. (joomdactor.com)
- The hypoglossal nerve arises as a series of rootlets, from the caudal brain stem, here seen from below. (iiab.me)
- The rootlets of the hypoglossal nerve arise from the hypoglossal nucleus near the bottom of the brain stem . (iiab.me)
- Your vestibular system and your hearing system meet and send information to your brain via the vestibulocochlear nerve. (precisionpt.org)
- Within this area is the vestibulocochlear nerve that sends nerve signals to the brain about sound, head motion, and position of a person. (grocare.com)
- This nerve is also in the inner ear and transmits sensory information to the brain. (enticare.com)
Motor nerves2
- Multiple channel systems are recommended as they allow monitoring of multiple divisions of the Facial Nerve independently, as well as other cranial motor nerves if needed. (evokedpotential.com)
- The facial motor nerves are represented on the homunculus diagram below with the forehead uppermost and the eyelids, midface, nose, and lips sequentially located more inferiorly. (medscape.com)
Sensory nerves1
- The primary input for the present discussion is that dizziness is being caused by the sensory nerves (afferents) that arise in the neck (cervical spine). (drjosephpengecir.com)
Nuclei1
- The nuclei of the cranial nerves are the collection of cell bodies of axons forming that cranial nerve. (brainmadesimple.com)
Trochlear2
- All the extraocular muscles are innervated by the oculomotor nerve (CN III) except the superior oblique and lateral rectus muscles, which are innervated by the trochlear nerve (CN IV) and abducent nerve (CN VI), respectively. (brainmadesimple.com)
- The trochlear nerve is a pure motor nerve having no sensory component. (brainmadesimple.com)
Diseases1
- Last but not least, we shall have a look at the diseases caused by damage to the abducent nerve. (brainmadesimple.com)
Posterior fossa1
- Microvascular Decompression (MVD) offers effective, long-term symptom relief for patients with pathologies related to neurovascular conflicts of cranial nerves in the posterior fossa. (heraldopenaccess.us)
Symptoms2
- Facial nerve paralysis is characterised by facial weakness, usually only in one side of the face, with other symptoms possibly including loss of taste, hyperacusis and decreased salivation and tear secretion. (wikipedia.org)
- This decompresses the nerve root exit zone and has been shown to ameliorate symptoms. (heraldopenaccess.us)
Head injuries1
- Head injuries can lead to problems with balance and cognition, with dizziness being a common sign. (spinalcorrectioncenters.com)
Trigeminal nerve5
- How do I calm my trigeminal nerve? (greatgreenwedding.com)
- What happens if the trigeminal nerve is damaged? (greatgreenwedding.com)
- Trigeminal nerve injuries not only causes significant neurosensory deficits and facial pain, but can cause significant comorbidities due to changes in eating habits from muscular denervation of masticator muscles or altered sensation of the oral mucosa. (greatgreenwedding.com)
- The main cause of trigeminal neuralgia is blood vessels pressing on the root of the trigeminal nerve. (greatgreenwedding.com)
- The former courses ventrally into the first branchial arch and terminates near a branch of the trigeminal nerve that eventually becomes the lingual nerve. (medscape.com)
Glossopharyngeal nerve2
- The glossopharyngeal nerve (cranial nerve IX) is responsible for swallowing and the gag reflex, along with other functions. (greatgreenwedding.com)
- GPN manifests as sharp, stabbing pulses of pain in the auricular and pharyngeal regions caused by neurovascular compression at the root exit zone of the glossopharyngeal nerve [1]. (heraldopenaccess.us)
Acoustic1
- The utricle and saccule have sensory areas (acoustic maculae) which are innervated by the vestibular nerve. (lecturio.com)
Paralysis4
- Facial nerve paralysis is a common problem that involves the paralysis of any structures innervated by the facial nerve. (wikipedia.org)
- The pathway of the facial nerve is long and relatively convoluted, so there are a number of causes that may result in facial nerve paralysis. (wikipedia.org)
- The recurrence of this infection can cause serious complications such as hearing loss, tympanic membrane perforation, infrequently it can lead to mastoiditis, facial nerve paralysis, sinus thrombosis, and meningitis (Kivi and Yu, 2016). (ukessays.com)
- Injury to this nerve results in lateral rectus muscle weakness or paralysis. (uchicago.edu)
Sixth crani3
- For the internal strabismus, the defect sometimes is due to any damage to the abducent nerve, the sixth cranial nerve. (brainmadesimple.com)
- The abducent or abducent nerve is the sixth cranial nerve (CN VI). (brainmadesimple.com)
- Traumatic injury to the abducens, or sixth, cranial nerve. (uchicago.edu)
Cochlea1
- Non-genetic congenital SNHL is thought to be the result of an injury to the cochlea typically from premature birth, infection, or exposure to ototoxic medications or noise. (intechopen.com)
Plexus2
- The internal carotid artery, along with its sympathetic plexus and abducents nerve, is wrapped in a sheath called a carotid sheath. (brainmadesimple.com)
- Hypoglossal nerve, cervical plexus, and their branches. (iiab.me)
Congenital1
- Many factors can increase the incidence of iatro genic Facial Nerve injury, including congenital anomalies, revision surgery, tumors, and severe inflammatory processes. (evokedpotential.com)
Lingual nerve2
- [4] The hypoglossal nerve moves forward lateral to the hyoglossus and medial to the stylohyoid muscles and lingual nerve . (iiab.me)
- [6] Signals from muscle spindles on the tongue travel through the hypoglossal nerve, moving onto the lingual nerve which synapses on the trigeminal mesencephalic nucleus . (iiab.me)
Vestibular neuritis1
- Vestibular neuritis is the inflammation of a vestibular nerve. (joomdactor.com)
Cervical spine1
- Doctors need to check for cervical spine misalignments that developed because of the injury. (uppercervicalawareness.com)
Damage to the nerve1
- 2000 ). The lack of an epineural covering in the intracranial segment of the nerve is an additional factor that makes it more vulnerable to injury where even mild stretching may produce significant damage to the nerve. (evokedpotential.com)
Middle ear4
- Otitis media is an infection in the middle ear, which can spread to the facial nerve and inflame it, causing compression of the nerve in its canal. (wikipedia.org)
- Inflammation from the middle ear can spread to the canalis facialis of the temporal bone - through this canal travels the facial nerve together with the statoacoustisus nerve. (wikipedia.org)
- To innervate these muscles, the facial nerve courses across the region that eventually becomes the middle ear. (medscape.com)
- The causes for the problem can be the inherent imperfection or the injuries that occurred in the outer or middle ear. (vikramenthospital.com)
Spinal2
- It then travels close to the vagus nerve and spinal division of the accessory nerve , [2] spirals downwards behind the vagus nerve and passes between the internal carotid artery and internal jugular vein lying on the carotid sheath . (iiab.me)
- The hypoglossal nerve leaves the skull through the hypoglossal canal , which is situated near the large opening for the spinal cord, the foramen magnum . (iiab.me)
Compression of the nerve1
- Vascular compression of the nerve root exit zone (Figure 1) is characteristic of Trigeminal Neuralgia (TN), Hemifacial Spasm (HFS) and Glossopharyngeal Neuralgia (GPN) [1,2]. (heraldopenaccess.us)
Emerges1
- At a point at the level of the angle of the mandible , the hypoglossal nerve emerges from behind the posterior belly of the digastric muscle . (iiab.me)
Abducent2
- In the following text, we shall have a look at the origin, course, classification, and functional component(s) of the abducent nerve. (brainmadesimple.com)
- There is only one nucleus for each of the abducent nerves that is present in the upper pons (seen in the cut section of upper pons) at the level of facial colliculi. (brainmadesimple.com)