- periaqueductal gray
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a) The region surrounding the aqueduct of sylvius in the midbrainb) A region of gray matter with descending pathways which inhibit pain signals in the spinal cord
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periaqueductal gray
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Periaqueductal gray — Infobox Brain Name = PAGENAME Latin = s. grisea centralis GraySubject = 188 GrayPage = 806 Caption = Section through superior colliculus showing path of oculomotor nerve. Periaqueductal gray is the gray area just peripheral to the cerebral… … Wikipedia
periaqueductal gray substance — periventricular gray substance substantia grisea centralis … Medical dictionary
periaqueductal — per·i·aq·ue·duc·tal (pĕr ē ăk wĭ dŭkʹtəl) adj. Situated around the aqueduct of the brain: the periaqueductal gray matter. * * * … Universalium
periaqueductal — peri·aq·ue·duc·tal ak wə .dək təl adj of, relating to, or being the gray matter which surrounds the aqueduct of Sylvius * * * peri·aq·ue·duc·tal (per″e ak″wĭ dukґtəl) near or around an aqueduct … Medical dictionary
PAG — periaqueductal gray [matter]; polyacrylamide gel; pregnancy associated globulin; proliferation associated gene; proximal anastomosis graft; pulmonary arteriography … Medical dictionary
PAG — • periaqueductal gray [matter]; • polyacrylamide gel; • pregnancy associated globulin; • proliferation associated gene; • proximal anastomosis graft; • pulmonary arteriography … Dictionary of medical acronyms & abbreviations
Superior colliculus — Brain: Superior colliculus Section through superior colliculus (unlabeled) showing path of oculomotor nerve … Wikipedia
Urination — Manneken Pis, bronze sculpture in Brussels, Belgium Urination, also known as micturition, voiding, peeing, weeing, pissing, and more rarely, emiction, is the ejection of urine from the urinary bladder through the urethra to the outside of the… … Wikipedia
Spinal cord — Latin medulla spinalis The spinal cord nested in the vertebral column … Wikipedia
substance — Stuff; material. SYN: substantia [TA], matter. [L. substantia, essence, material, fr. sub sto, to stand under, be present] alpha s. SYN: reticular s. (1). anterior perforated s. [TA] a region at the base … Medical dictionary
