Browse categories
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Anatomy
1,049 questions A branch of biology dealing with the structure of organisms.
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Organisms
388 questions Any living biological entity, such as an animal, plant, fungus, or bacterium.
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Diseases
1,356 questions Any impairment of normal physiological function affecting all or part of an organism, esp a specific pathological change caused by infection, stress, etc, producing characteristic symptoms; illness or sickness in general.
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Chemicals and Drugs
853 questions Any substance used in or resulting from a reaction involving changes to atoms or molecules, especially one derived artificially for practical use and any synthetic, semisynthetic, or natural chemical substance used in the treatment, prevention, or diagnosis of disease, or for other medical reasons.
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Analytical, Diagnostic and Therapeutic Techniques and Equipment
359 questions
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Psychiatry and Psychology
162 questions The branches of medicine concerned with the diagnosis and treatment of mental illness and the scientific study of all forms of human and animal behaviour, sometimes concerned with the methods through which behaviour can be modified.
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Phenomena and Processes
97 questions
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Physical Phenomena
4 questions The entities of matter and energy, and the processes, principles, properties, and relationships describing their nature and interactions.
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Chemical Phenomena
2 questions The composition, conformation, and properties of atoms and molecules, and their reaction and interaction processes.
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Metabolic Phenomena
1 question The CHEMICAL PROCESSES that occur within the cells, tissues, or an organism and related temporal, spatial, qualitative, and quantitative concepts.
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Cell Physiological Phenomena
7 questions Cellular processes, properties, and characteristics.
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Genetic Phenomena
10 questions The processes, properties and biological objects that are involved in maintaining, expressing, and transmitting from one organism to another, genetically encoded traits.
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Microbiological Phenomena
0 questions Physiological processes and properties of microorganisms, including ARCHAEA; BACTERIA; RICKETTSIA; VIRUSES; FUNGI; and others.
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Physiological Phenomena
6 questions The functions and properties of living organisms, including both the physical and chemical factors and processes, supporting life in single- or multi-cell organisms from their origin through the progression of life.
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Reproductive and Urinary Physiological Phenomena
1 question Physiology of the human and animal body, male or female, in the processes and characteristics of REPRODUCTION and the URINARY TRACT.
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Circulatory and Respiratory Physiological Phenomena
3 questions Functional processes and properties characteristic of the BLOOD; CARDIOVASCULAR SYSTEM; and RESPIRATORY SYSTEM.
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Digestive System and Oral Physiological Phenomena
1 question Properties and processes of the DIGESTIVE SYSTEM and DENTITION as a whole or of any of its parts.
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Musculoskeletal and Neural Physiological Phenomena
1 question Properties, and processes of the MUSCULOSKELETAL SYSTEM and the NERVOUS SYSTEM or their parts.
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Immune System Phenomena
4 questions The characteristic properties and processes involved in IMMUNITY and an organism's immune response.
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Integumentary System Physiological Phenomena
1 question The properties and relationships and biological processes that characterize the nature and function of the SKIN and its appendages.
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Ocular Physiological Phenomena
0 questions Processes and properties of the EYE as a whole or of any of its parts.
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Plant Physiological Phenomena
0 questions The physiological processes, properties, and states characteristic of plants.
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Biological Phenomena
2 questions Biological processes, properties, and characteristics of the whole organism in human, animal, microorganisms, and plants, and of the biosphere.
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Mathematical Concepts
0 questions Numeric or quantitative entities, descriptions, properties, relationships, operations, and events.
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Disciplines and Occupations
28 questions
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Anthropology, Education, Sociology and Social Phenomena
98 questions
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Technology, Industry, Agriculture
84 questions
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Humanities
80 questions The study of literature, philosophy, and the arts.
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Information Science
219 questions The field of knowledge, theory, and technology dealing with the collection of facts and figures, and the processes and methods involved in their manipulation, storage, dissemination, publication, and retrieval. It includes the fields of COMMUNICATION; PUBLISHING; LIBRARY SCIENCE; and informatics.
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Named Groups
38 questions
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Health Care
1,264 questions
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Publication Characteristics
30 questions
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Geographicals
23 questions The study of the natural features of the earth's surface, including topography, climate, soil, vegetation, etc, and man's response to them.
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