| AIN | acute interstitial nephritis; American Institute of Nutrition; anterior interosseous nerve |
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| AIPFP | acute idiopathic peripheral facial nerve palsy |
| AIS | Abbreviated Injury Scale; amniotic infection syndrome; androgen insensitivity syndrome; anterior int... |
| ANAS | anastomosis; auditory nerve activating substance |
| ANI | acute nerve irritation |
| right branch | Of a pair of branches, the branch passing to the right side of the body, to the right member of a bilateral pair of structures, or to the right portion of an unpaired structure; the other member of the pair being a left branch. Synonym: ramus dexter. (05 Mar 2000) |
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| right branch of portal vein | <anatomy, vein> Terminal branch of hepatic portal vein distributed to right lobe of liver tributary: cystic vein. Synonym: ramus dexter venae portae hepatis. (05 Mar 2000) |
| right branch of proper hepatic artery | <anatomy, artery> Right branch of proper hepatic artery; terminal branch of proper hepatic artery supplying right lobe of liver; branch: cystic artery. Synonym: ramus dexter arteriae hepaticae propriae, right branch of proper hepatic artery. (05 Mar 2000) |
| peroneal communicating branch | The peroneal (fibular) communicating branch of the common peroneal (fibular) nerve; it arises from the common peroneal nerve in the popliteal space and passes over the lateral head of the gastrocnemius to the middle third of the leg, where it unites with the medial sural cutaneous nerve to form the sural nerve. Synonym: ramus communicans fibularis nervi fibularis communis, ramus communicans peroneus nervi peronei communis, nervus communicans fibularis, nervus communicans peroneus, peroneal anastomotic ramus, peroneal communicating nerve. (05 Mar 2000) |
| petrosal branch of middle meningeal artery | <anatomy, artery> Petrous branch of middle meningeal artery; first intracranial branch of middle meningeal artery; anastomosis: stylomastoid artery via hiatus of facial canal. Synonym: ramus petrosus arteriae meningeae mediae. (05 Mar 2000) |
| pharyngeal branch of descending palatine artery | <anatomy, artery> May arise as a separate branch or as a continuation of lesser palatine artery. Synonym: ramus pharyngeus arteriae palatini descendens. (05 Mar 2000) |
| pharyngeal branch of inferior thyroid artery | <anatomy, artery> Distributed to laryngopharynx. Synonym: rami pharyngeales arteriae thyroideae inferioris. (05 Mar 2000) |
| pharyngeal branch of pterygopalatine ganglion | Branch of pterygopalatine ganglion passing posteriorly through pharyngeal canal to supply postsynaptic parasympathetic fibres to mucus glands of nasopharynx. Synonym: ramus pharyngeus ganglii pterygopalatini, Bock's nerve. (05 Mar 2000) |
| pharyngeal branch of the artery of pterygoid canal | Distributed to uppermost nasopharynx (pharyngeal recesses). Synonym: ramus pharyngeus arteriae canalis pterygoidei. (05 Mar 2000) |
| pharyngeal branch of the ascending pharyngeal artery | <anatomy, artery> Distribution: walls of oro-and nasopharynx. Synonym: rami pharyngeales arteriae pharyngeae ascendentis. (05 Mar 2000) |
| middle lobe branch | Middle lobe branch of 1) the right pulmonary artery (arteriae pulmonalis dextrae ); 2) the right superior pulmonary vein (venae pulmonalis dextrae superior ). Synonym: ramus lobi medii. (05 Mar 2000) |
| circumflex branch of left coronary artery | <anatomy, artery> Terminal branch (with anterior interventricular artery) of left coronary artery which runs to left and then posteriorly in the coronary groove supplying atrial and ventricular branches. Synonym: ramus circumflexus arteriae coronariae sinistrae. (05 Mar 2000) |
| clavicular branch of thoracoacromial artery | <anatomy, artery> Distribution, subclavius muscle and sternoclavicular joint. Synonym: ramus clavicularis arteriae thoracoacromialis. (05 Mar 2000) |
| cochlear branch of labyrinthine artery | <anatomy, artery> Terminal branch (with vestibular branch) of labyrinthine artery; it divides into multiple fine branches which penetrate canals of modiolus to supply the plexus of the spiral lamina and basilar membrane. Synonym: ramus cochlearis arteriae labyrinthi. (05 Mar 2000) |
| communicating branch | A bundle of nerve fibres passing from one named nerve to join another. The term "communicating branch" is used in the nervous system to replace the inadequate "anastomosing branch" used for vascular systems. Synonym: ramus communicans. (05 Mar 2000) |