| APA | action potential amplitude; aldosterone-producing adenoma; Ambulatory Pediatric Association; America... |
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| ART | absolute retention time; Accredited Record Technician; acoustic reflex test; algebraic reconstructio... |
| art | artery, arterial; articulation; artificial |
| ASA | acetylsalicylic acid; active systemic anaphylaxis; Adams-Stokes attack; American Society of Anesthes... |
| ASCAD | atherosclerotic coronary artery disease |
| central artery of retina | A branch of the ophthalmic artery which penetrates the optic nerve 1 cm behind the eye to enter the eye at the optic papilla in the retina; it divides into superior and inferior temporal and nasal branches. Synonym: arteria centralis retinae, arteria retinae centralis, Zinn's artery. (05 Mar 2000) |
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| medium artery | <anatomy, artery> An artery with a tunica media composed principally of circularly arranged smooth muscle. Synonym: distributing artery, medium artery. (05 Mar 2000) |
| volar 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) |
| central retinal artery occlusion | <ophthalmology> The sudden blockage of the retinal artery with a blood clot that commonly leads to a painless but irreversible blindness in that eye. (12 Jan 1998) |
| central sulcal artery | <anatomy, artery> A branch of the terminal part of the middle cerebral artery distributed to the cortex on either side of the central sulcus. Synonym: arteria sulci centralis, artery of central sulcus, central artery, Rolandic artery. (05 Mar 2000) |
| cerebral part of internal carotid artery | <anatomy, artery> The portion of the internal carotid artery that supplies the brain; its branches are: superior hypophyseal, clival, ophthalmic, anterior choroidal, anterior cerebral, and middle cerebral. Synonym: pars cerebralis arteriae carotidis internae. (05 Mar 2000) |
| retinal artery | <anatomy, artery> Central retinal artery and its branches. It arises from the ophthalmic artery, pierces the optic nerve and runs through its centre, enters the eye through the porus opticus and branches to supply the retina. (12 Dec 1998) |
| retinal artery occlusion | Occlusion or closure of the central retinal artery causing sudden, usually nearly complete, loss of vision in one eye. Occlusion of the branch retinal artery causes sudden visual loss in only a portion of the visual field. (12 Dec 1998) |
| cervical part of internal carotid artery | <anatomy, artery> The unbranched portion located in the neck. Synonym: pars cervicalis arteriae carotidis internae. (05 Mar 2000) |
| retroduodenal artery | <anatomy, artery> Origin, one of several small branches from the gastroduodenal artery posterior to the duodenum; distribution, first part of duodenum. Synonym: arteria retroduodenalis, posterior pancreaticoduodenal artery. (05 Mar 2000) |
| cervicovaginal artery | <anatomy, artery> An anastomotic communication between the uterine artery and the vaginal artery; it courses along the lateral aspect of the cervix and vagina. Synonym: arteria cervicovaginalis. (05 Mar 2000) |
| meningeal branch of internal carotid artery | <anatomy, artery> A branch from the cavernous part of the internal carotid artery to the meninges of the anterior cranial fossa. Synonym: ramus meningeus arteriae carotidis internae. (05 Mar 2000) |
| meningeal branch of occipital artery | <anatomy, artery> One of the variable branches of the occipital artery which may pass through the jugular or parietal foramina or condyloid canal to reach the dura mater and bone of the posterior cranial fossa, as well as the intracranial portions of the caudal four cranial neres. Synonym: ramus meningeus arteriae occipitalis. (05 Mar 2000) |
| perforating branches of internal thoracic artery | <anatomy, artery> Small branches of the internal thoracic artery running between the costal cartilages to supply overlying skin and subcutaneous tissues. Synonym: ramus perforantes arteriae thoracicae internae, perforating arteries of internal mammary. (05 Mar 2000) |
| perforating branch of peroneal artery | <anatomy, artery> The branch of the peroneal artery that perforates the interosseous membrane just above the anterior tibiofibular ligament. Synonym: ramus perforans arteriae fibularis. (05 Mar 2000) |