| ramus iliacus arteriae iliolumbalis | <anatomy, artery> Terminal branch of iliolumbar artery (with lumbar branch) distributed to iliac fossa to supply iliac muscle, ilium, and portions of muscles having attachment to the iliac crest. Synonym: ramus iliacus arteriae iliolumbalis. (05 Mar 2000) |
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| ramus inferior | A branch directed downward (caudally) or which is lowly-placed, usually in contrast with another branch (superior branch) which is directed upward (rostrally) or is highly-placed. Synonym: ramus inferior. (05 Mar 2000) |
| ramus inferior arteriae gluteae superioris | <anatomy, artery> Distribution: gluteus medius and minimus muscles; anastomosis: lateral circumflex femoral artery. Synonym: ramus inferior arteriae gluteae superioris. (05 Mar 2000) |
| ramus inferior nervi oculomotorii | <anatomy, nerve> Branch of oculomotor nerve providing motor branches to medial and inferior rectus and inferior oblique muscles and carrying presynaptic parasympathetic fibres which pass to the ciliary ganglion via the parasympathetic root. Synonym: ramus inferior nervi oculomotorii. (05 Mar 2000) |
| ramus infrahyoideus arteriae thyroidea superioris | <anatomy, artery> Small branch from the initial part of the superior thyroid artery coursing along the hyoid bone deep to the thyrohyoid muscle to anastomose with its contralateral partner. Synonym: ramus infrahyoideus arteriae thyroidea superioris. (05 Mar 2000) |
| ramus infrapatellaris nervi sapheni | Branch of saphenous nerve supplying skin over and below patella. Synonym: ramus infrapatellaris nervi sapheni. (05 Mar 2000) |
| ramus internus nervi accessorii | <anatomy, nerve> Branch of the accessory nerve trunk which carries fibres from the cranial root and which unites with the vagus nerve in the jugular foramen. See: accessory nerve. Synonym: ramus internus nervi accessorii, internal ramus of accessory nerve. (05 Mar 2000) |
| ramus internus nervi laryngei superioris | <anatomy, nerve> Terminal branch of superior laryngeal nerve (with external branch) conveying sensory fibres to the supraglottic larynx. Synonym: ramus internus nervi laryngei superioris. (05 Mar 2000) |
| ramus interventricularis anterior arteriae coronariae sinistrae | <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) |
| ramus interventricularis posterior arteriae coronariae dextrae | <anatomy, artery> Posterior interventricular branch of right coronary artery. Continuation of right coronary artery in posterior interventricular sulcus; descends to apex to anastomose with anterior interventricular artery; supplies most of diaphragmatic aspect of ventricles and posterior third of interventricular septum. Synonym: ramus interventricularis posterior arteriae coronariae dextrae, posterior descending artery. (05 Mar 2000) |
| ramus lateralis ductus hepatici sinistri | Lateral branch left hepatic duct. See: lateral branches. (05 Mar 2000) |
| ramus lateralis interventricularis anterioris arteriae coronariae sinistrae | Lateral branch of anterior interventricular artery. See: lateral branches. (05 Mar 2000) |
| ramus lateralis nervi supraorbitalis | Lateral branch of supraorbital nerve. See: lateral branches. (05 Mar 2000) |
| ramus lateralis ramorum dorsalium nervorum thoracicorum | Lateral cutaneous branch of dorsal branch of thoracic nerves. (05 Mar 2000) |
| ramus lateralis ramorum lobaris medium arteriorum pulmonalium dextrorum | Lateral branch of middle lobe branch of right pulmonary artery. See: lateral branches. (05 Mar 2000) |