| AACP | American Academy of Cerebral Palsy; American Association of Colleges of Pharmacy |
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| AACPDM | American Academy for Cerebral Palsy and Developmental Medicine |
| ACE | acetonitrile; acetylcholine esterase; acute cerebral encephalopathy; acute coronary event; adrenocor... |
| ADCC | acute disorder of cerebral circulation; antibody-dependent cell-mediated cytotoxicity |
| AFCI | acute focal cerebral ischemia |
| anterior auricular branches of superficial temporal artery | <anatomy, artery> Distribution, auricle, earlobe and external acoustic meatus. Synonym: rami auriculares anteriores arteriae temporalis superficialis. (05 Mar 2000) |
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| anterior caecal artery | <anatomy, artery> An artery that originates from the ileocolic artery and supplies the anterior region of caecum. Synonym: arteria caecalis anterior. (05 May 2002) |
| anterior choroidal artery | <anatomy, artery> Origin, internal carotid or (rarely) middle cerebral artery; distribution, optic tract, crus cerebri, uncus, hippocampus, globus pallidus, posterior part of internal capsule, geniculate bodies of the thalamus, and choroid plexus in the inferior horn of the lateral ventricle. Synonym: arteria choroidea anterior. (05 Mar 2000) |
| anterior ciliary artery | <anatomy, artery> One of several arteries derived from muscular branches of the ophthalmic which perforate the anterior part of the sclera and anastomose with posterior ciliary arteries. Synonym: arteria ciliaris anterior. (05 Mar 2000) |
| anterior circumflex humeral artery | <anatomy, artery> Origin, axillary; distribution, shoulder joint and biceps muscle; anastomoses, posterior circumflex humeral artery. Synonym: arteria circumflexa humeri anterior, anterior humeral circumflex artery. (05 Mar 2000) |
| anterior communicating artery | <anatomy, artery> A short vessel joining the two anterior cerebral arteries and completing the cerebral arterial circle (circle of Willis) anteriorly. Synonym: arteria communicans anterior. (05 Mar 2000) |
| anterior conjunctival artery | <anatomy, artery> One of a number of small branches of the anterior ciliary arteries that supplies the conjunctiva. Synonym: arteria conjunctivalis anterior, conjunctival arteries. (05 Mar 2000) |
| anterior descending artery | <anatomy, artery> Anterior interventricular branch of left coronary artery. Terminal branch (with circumflex coronary artery) of left coronary artery; descends in anterior interventricular groove to apex, anastomosing with posterior interventricular artery. Supplies most of sternal aspect of ventricles and anterior two-thirds of interventricular septum, including atrioventricular bundle of conducting tissue. Synonym: ramus interventricularis anterior arteriae coronariae sinistrae, anterior descending artery. (05 Mar 2000) |
| anterior ethmoidal artery | <anatomy, artery> Origin, ophthalmic; distribution, cerebral membranes in anterior cranial fossa, anterior ethmoidal cells, frontal sinus, anterior upper part of nasal mucous membrane, skin of dorsum of nose. Synonym: arteria ethmoidalis anterior. (05 Mar 2000) |
| anterior humeral circumflex artery | <anatomy, artery> Origin, axillary; distribution, shoulder joint and biceps muscle; anastomoses, posterior circumflex humeral artery. Synonym: arteria circumflexa humeri anterior, anterior humeral circumflex artery. (05 Mar 2000) |
| anterior inferior cerebellar artery | <anatomy, artery> Origin, basilar; distribution, lower surface of lateral lobes of cerebellum, choroid plexus in cerebellopontine angle; anastomoses, posterior inferior cerebellar; usual source of labyrinthine artery. Synonym: arteria cerebelli inferior anterior. (05 Mar 2000) |
| anterior inferior segmental artery of kidney | Origin, anterior branch of renal. See: segmental arteries of kidney. Synonym: arteria segmenti anterioris inferioris renis, artery of anterior {inferior segment of kidney}. (05 Mar 2000) |
| anterior intercostal branches of internal thoracic artery | One of the arteries supplying the anterior portions of the intercostal spaces of the thoracic wall. Anterior intercostal arteries 1-6 arise as branches of the internal thoracic artery; 7-11 arise as branches of the musculophrenic artery. Synonym: rami intercostales anteriores, rami intercostalis anteriores arteria thoracica interna. (05 Mar 2000) |
| anterior interosseous artery | <anatomy, artery> Origin, common interosseous; distribution, deep parts of the forearm anteriorly; anastomoses, posterior interosseous. Synonym: arteria interossea anterior, arteria interossea volaris, volar interosseous artery. (05 Mar 2000) |
| anterior interventricular artery | <anatomy, artery> Anterior interventricular branch of left coronary artery. Terminal branch (with circumflex coronary artery) of left coronary artery; descends in anterior interventricular groove to apex, anastomosing with posterior interventricular artery. Supplies most of sternal aspect of ventricles and anterior two-thirds of interventricular septum, including atrioventricular bundle of conducting tissue. Synonym: ramus interventricularis anterior arteriae coronariae sinistrae, anterior descending artery. (05 Mar 2000) |