Medulla oblongata
The base of the brain, which is formed by the enlarged top of the spinal cord. The medulla oblongata directly controls breathing, blood flow, and other essential functions.
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- Medulla, adrenal
The inner portion of adrenal gland. (The outer portion is the adrenal cortex). The adrenal medulla makes epinephrine (adrenaline) and norepinephrine (noradrenaline). Epinephrine is secreted in response to low blood levels of glucose as well as exercise and stress; it causes the breakdown of the storage product glycogen to the sugar glucose in the liver, […]
- Medullary cystic kidney disease, recessive
A childhood genetic kidney disease in which there is progressive symmetrical destruction of the kidneys involving both the tubules and glomeruli, characteristically resulting in anemia, polyuria, polydipsia, isosthenuria (decreased ability to concentrate the urine), progressive renal failure and death in uremia. Hypertension and proteinuria are conspicuous by their absence. The chronic kidney failure affects growth […]
- Medulloblastoma
A type of brain tumor that tends to occur in children, arise in the cerebellum (in the lower part of the brain), and spread along the spine. Medulloblastoma is the most common type of primary brain tumor in childhood. Medulloblastomas occasionally metastasize outside the central nervous system, usually to bone. Treatment involves surgery, radiotherapy, and […]
- MEDVAC
Acronym for medical evacuation. MEDVAC typically refers to a team that has the skills necessary for proper medical evacuation in emergency situations. Also known as MEDEVAC.
- MEF2A
A transcription factor that participates in vascular development. MEF2A is a member of the myocyte enhancer factor-2 (MEF2) family of transcription factors. Messenger RNA (mRNA) from MEF2A has been detected in blood vessels during early embryogenesis. The gene for MEF2A is located on chromosome 15q26. A heritable deletion within the MEF2A gene that results in […]