| ramus nodi atrioventricularis | The atrioventricular branches or the nodal branches, the small arteries supplying the atrioventricular node; they usually arise from the right coronary artery where it starts to descend the posterior interventricular sulcus. Synonym: ramus nodi atrioventricularis, atrioventricular nodal branch, branch to atrioventricular node. (05 Mar 2000) |
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| ramus occipitalis | Nomina Anatomica lists occipital branches of 1) posterior auricular artery (rami occipitalis arteriae auricularis posterior; 2) posterior auricular nerve (rami occipitalis nervi auricularis posterioris; and 3) occipital artery, rami occipitales arteriae occipitis. Synonym: ramus occipitalis. (05 Mar 2000) |
| ramus occipitotemporalis | The occipitotemporal branch, a branch of the medial occipital artery to the occipital and temporal regions of the cerebral cortex. (05 Mar 2000) |
| ramus of mandible | The upturned perpendicular extremity of the mandible on either side; it gives attachment on its lateral surface to the masseter muscle. Synonym: ramus mandibulae. (05 Mar 2000) |
| ramus of the mandible | The mandible (the lower jaw bone) is shaped like a horseshoe. The back parts of the horseshoe that stick up are the two ramuses, or more properly, the rami of the mandible. (12 Dec 1998) |
| ramus orbitalis ganglii pterygopalatini | Branches of pterygopalatine ganglion traversing inferior orbital fissure, distributed in orbit to periorbita and mucosa of ethmoidal and sphenoidal sinuses. Synonym: ramus orbitalis ganglii pterygopalatini. (05 Mar 2000) |
| ramus orbitofrontalis lateralis | <anatomy, artery> A branch of the insular part of the middle cerebral artery distributed to the cortex of the lateral, inferior part of the frontal lobe. Synonym: arteria frontobasalis lateralis, ramus orbitofrontalis lateralis, lateral orbitofrontal branch, orbitofrontal artery. (05 Mar 2000) |
| ramus orbitofrontalis medialis | <anatomy, artery> The medial orbitofrontal branch, the first branch of the pericallosal artery; it supplies the medial half of the inferior surface of the frontal cortex. Synonym: arteria frontobasalis medialis, ramus orbitofrontalis medialis, orbital artery. (05 Mar 2000) |
| ramus ossis ischii | The branch of the ischial bone, formerly called inferior branch of the ischium; the portion of the bone that passes forward from the ischial tuberosity to join the inferior ramus of the pubic bone, thus forming the ischiopubic ramus. Synonym: ramus ossis ischii. (05 Mar 2000) |
| ramus palmaris nervi mediani | <anatomy, nerve> Branch of median nerve arising proximal to flexor retinaculum and running superficial to it to supply skin of proximal central palm and thenar eminence. Since it does not traverse carpal tunnel, it is not affected by carpal tunnel syndrome, even though it supplies skin distal to carpal tunnel. Synonym: ramus palmaris nervi mediani. (05 Mar 2000) |
| ramus palmaris nervi ulnaris | <anatomy, nerve> Branch of ulnar nerve arising in distal forearm and accompanying palmar artery into hand where it supplies skin of little finger and medial half of ring finger and adjacent parts of palm. Synonym: ramus palmaris nervi ulnaris. (05 Mar 2000) |
| ramus parieto-occipitalis | Parieto-occipital branch of medial occipital artery. (05 Mar 2000) |
| ramus perforans | Arterial branches which penetrate a wall or pass from the anterior to the posterior aspect or compartment of a structure such as the hand or foot to anastomose or be distributed. Synonym: ramus perforans, perforating peroneal artery. (05 Mar 2000) |
| ramus perforantes arteriarum metacarpalium palmarium | The perforating branches of the palmar metacarpal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the hand from the palmar metacarpal arteries. Synonym: ramus perforantes arteriarum metacarpalium palmarium, perforating arteries of hand. (05 Mar 2000) |
| ramus perforantes arteriarum metatarsearum plantarium | The perforating branches of the plantar metatarsal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the foot from the plantar metatarsal arteries. Synonym: ramus perforantes arteriarum metatarsearum plantarium, perforating arteries of foot. (05 Mar 2000) |