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Medical terminology 10/12 https://en.wikipedia.org/wiki/Medical_terminology reference science, encyclopedia 2026-05-05T07:25:35.931317+00:00 kb-cron

The human brain contains multiple regions, as does the spinal cord. There are multiple ways to divide the brain, including by the embryological development of the brain; into three parts: the cerebellum, brainstem, and cerebrum; the evolution of the brain; and cytoarchitecture, as in the case of Brodmann areas. A popular model of the 'triune brain' — comprising the reptilian complex (basal ganglia), the paleomammalian complex (limbic system), and the neomammalian complex (neocortex) — was formerly popular during the 1960s, though is now regarded as a myth. 'Limbic system' and associated terms, however, remain in neuroanatomical use, although some neuroscientists have argued against such use.

Various other neuroanatomical systems have been developed according to functions, connections, and systems of the brain. Neuroendocrine axes Hypothalamicpituitaryadrenal axis Hypothalamicneurohypophyseal system Hypothalamicpituitarygonadal axis Hypothalamicpituitarythyroid axis Limbic system, corresponding to Cortical areas: Limbic lobe Orbitofrontal cortex Piriform cortex part of the olfactory system Entorhinal cortex Hippocampus and associated structures Fornix and septal nuclei Subcortical areas: Septal nuclei Amygdala Nucleus accumbens Diencephalic structures: Hypothalamus Mammillary bodies Anterior nuclei of thalamus

==== Neuropathology ==== In the peripheral nervous system, the most common problem is the failure of nerve conduction, which can be due to different causes including diabetic neuropathy and demyelinating disorders such as multiple sclerosis and amyotrophic lateral sclerosis.

==== Psychopathology ==== List of mental disorders

== Pathology == Lists of diseases Pathology List of abbreviations for diseases and disorders

=== -plasia and -trophy === The suffix -plasia refers to the formation and development of cells, tissue, and organs, coming from Greek πλᾰ́σῐς (plásis), moulding, conformation.

Achondroplasia (dwarfism) Anaplasia (structural differentiation loss within a cell or group of cells) Aplasia (organ or part of organ missing) Desmoplasia (connective tissue growth) Dysplasia (change in cell or tissue phenotype) Hyperplasia (proliferation of cells) Hypoplasia (congenital below-average number of cells, especially when inadequate) Metaplasia (conversion in cell type) Neoplasia (abnormal proliferation) Prosoplasia (development of new cell function) The suffix trophy refers to the nourishment and development of cells, tissue, and organs, coming from Greek τροφή (trophḗ), food, nourishment.

Abiotrophy (loss in vitality of organ or tissue) Atrophy (reduced functionality of an organ, with decrease in the number or volume of cells) Hypertrophy (increase in the volume of cells or tissues) Hypotrophy (decrease in the volume of cells or tissues) Dystrophy (any degenerative disorder resulting from improper or faulty nutrition) Pseudohypertrophy (false enlargement of muscle)

=== Other pathology suffixes ===

== Pharmacology == Anticholinergic Alpha blocker Beta blocker

== Clinical ==

=== Abbreviations ===

The publication of medical abbreviations for use in the journals published by the American Medical Association is dictated by the AMA Manual of Style is the style guide of the American Medical Association. Periods are generally not used. Plurals for medical acronyms are represented by affixes a lowercase s with no apostrophe. Arrows may also be used to indicate elevation (↑), diminution (↓), and causation (→, ←).

==== Medical slang ==== Medical slang such as, "TTFO", meaning "told to fuck off", may be used on a patient's chart in an informal and derogatory manner.

=== Diagnosis === Medical diagnosis Differential diagnosis

=== Symptomatology === Signs and symptoms

=== Transgender anatomy ===

Although some medical authorities recommend mirroring the terminology transgender people use to describe their own genitals, such usage may feel uncomfortable and intimate to some transgender people, who prefer to use different terms in medical contexts than they would in personal settings. At the same time, patients may also be uncomfortable with anatomical terms they perceive as gendered. Specialists recommend being open to using sex-neutral terms for organs, such as external genitals or lateral folds for the labia, internal reproductive organs for the uterus and ovaries, and chest for the breasts. Style guides such as the Publication Manual of the American Psychological Association and AMA Manual of Style recommend using gender-neutral language and distinguishing between gender and biological sex, but do not give guidance on specific anatomical terminology.

=== Mnemonics === Surveys of medical students show that approximately 20% use medical mnemonics.