| IMA | Industrial Medical Association; inferior mesenteric artery; Interchurch Medical Assistance; internal... |
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| IMG | inferior mesenteric ganglion; internal medicine group [practice]; international medical graduate |
| IMI | immunologically measurable insulin; impending myocardial infarction; Imperial Mycological Institute ... |
| IMV | inferior mesenteric vein; intermittent mandatory ventilation; intermittent mechanical ventilation; i... |
| INA | infectious nucleic acid; inferior nasal artery; International Neurological Association |
| ramus basalis tentorii arteriae carotidis internae | <anatomy, artery> A small branch from the cavernous part of the internal carotid artery to the base of the tentorium. Synonym: ramus basalis tentorii arteriae carotidis internae. (05 Mar 2000) |
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| ramus calcarinus arteriae occipitalis medialis | <anatomy, artery> Branch of medial occipital artery which runs in relationship to the calcarine sulcus. Synonym: ramus calcarinus arteriae occipitalis medialis, arteria calcarina, calcarine artery. (05 Mar 2000) |
| ramus cardiacus | An obsolete term for medial basal branch of pulmonary artery. (05 Mar 2000) |
| ramus carpalis dorsalis arteriae radialis | <anatomy, artery> A branch of the radial artery that passes to the back of the wrist to join the dorsal carpal network. Synonym: ramus carpalis dorsalis arteriae radialis, ramus carpeus dorsalis arteriae radialis. (05 Mar 2000) |
| ramus carpalis dorsalis arteriae ulnaris | <anatomy, artery> A branch of the ulnar artery that passes to the dorsal side of the carpus to enter the dorsal carpal network. Synonym: ramus carpeus dorsalis arteriae ulnaris, ramus carpalis dorsalis arteriae ulnaris. (05 Mar 2000) |
| ramus carpalis palmaris arteriae radialis | <anatomy, artery> A small branch of the radial artery that passes medially across the wrist to supply the carpal joints; it anastomoses with the anterior carpal branch of the ulnar artery. Synonym: ramus carpalis palmaris arteriae radialis, ramus carpeus palmaris arteriae radialis. (05 Mar 2000) |
| ramus carpalis palmaris arteriae ulnaris | <anatomy, artery> A branch of the ulnar artery that supplies the carpal joints and communicates with the anterior carpal branch of the radial artery. Synonym: ramus carpalis palmaris arteriae ulnaris, ramus carpeus palmaris arteriae ulnaris. (05 Mar 2000) |
| ramus carpeus dorsalis arteriae radialis | <anatomy, artery> A branch of the radial artery that passes to the back of the wrist to join the dorsal carpal network. Synonym: ramus carpalis dorsalis arteriae radialis, ramus carpeus dorsalis arteriae radialis. (05 Mar 2000) |
| ramus carpeus dorsalis arteriae ulnaris | <anatomy, artery> A branch of the ulnar artery that passes to the dorsal side of the carpus to enter the dorsal carpal network. Synonym: ramus carpeus dorsalis arteriae ulnaris, ramus carpalis dorsalis arteriae ulnaris. (05 Mar 2000) |
| ramus carpeus palmaris arteriae radialis | <anatomy, artery> A small branch of the radial artery that passes medially across the wrist to supply the carpal joints; it anastomoses with the anterior carpal branch of the ulnar artery. Synonym: ramus carpalis palmaris arteriae radialis, ramus carpeus palmaris arteriae radialis. (05 Mar 2000) |
| ramus carpeus palmaris arteriae ulnaris | <anatomy, artery> A branch of the ulnar artery that supplies the carpal joints and communicates with the anterior carpal branch of the radial artery. Synonym: ramus carpalis palmaris arteriae ulnaris, ramus carpeus palmaris arteriae ulnaris. (05 Mar 2000) |
| ramus cervicalis nervi facialis | An alternate term for cervical branch of facial nerve. Ramus chiasmaticus, the chiasmatic branch, a branch of the middle cerebral artery to the optic chiasm. (05 Mar 2000) |
| ramus choroidei posteriores laterales | Lateral posterior choroid branches of posterior cerebral artery. See: choroid branches. (05 Mar 2000) |
| ramus choroidei posteriores mediales | Medial posterior choroid branches of posterior cerebral artery. See: choroid branches. (05 Mar 2000) |
| ramus choroidei ventriculi lateralis | Lateral ventrical branch of anterior choroid artery. See: choroid branches. (05 Mar 2000) |