| sulcus arteriae vertebralis | <anatomy, artery> The sulcus on the superior aspect of the posterior arch of the atlas that transmits the vertebral artery medially toward the foramen magnum. Synonym: sulcus arteriae vertebralis, sulcus for vertebral artery. (05 Mar 2000) |
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| incisura vertebralis | One of the two concavities above (superior) and below (inferior) the pedicle of a vertebra; the notches of two adjacent vertebrae (plus the intervertebral disc) form an intervertebral foramen. Synonym: incisura vertebralis, intervertebral notch. (05 Mar 2000) |
| theca vertebralis | Single-layered strong membrane, comparable to and continuous with (at foramen magnum) the meningeal layer of the intracranial dura mater of the brain. It does not (in contrast to the dura mater of brain) adhere to the enveloping bony structures (vertebrae) or their periosteum, being separated from the latter by a considerable space, the vertebral epidural space-a true space containing the internal vertebral venous plexus embedded in a matrix of epidural fat. Synonym: dura mater spinalis, endorrhachis, theca vertebralis. (05 Mar 2000) |
| tubus vertebralis | The canal that contains the spinal cord, spinal meninges, and related structures. It is formed by the vertebral foramina of successive vertebrae of the articulated vertebral column. Synonym: canalis vertebralis, spinal canal, tubus vertebralis. (05 Mar 2000) |
| arteria | Synonym: artery. See: branch. Origin: L. From G. Arteria, the windpipe, later an artery as distinct from a vein (05 Mar 2000) |
| arteria acetabuli | An arterial branch that supplies the acetabulum; two arteries, the obturator and the medial femoral circumflex, have such branches. Synonym: ramus acetabularis, acetabular artery, arteria acetabuli. (05 Mar 2000) |
| arteria alveolaris inferior | <anatomy, artery> Origin, 1st part of maxillary artery; distribution, through mandibular foramen/canal to lower teeth and chin; branches, artery to mylohyoid, mental artery, dental arteries. Synonym: arteria alveolaris inferior, inferior dental artery. (05 Mar 2000) |
| arteria alveolaris superior posterior | <anatomy, artery> Origin, 3rd part of maxillary artery within pterygopalatine fossa; distribution, molar and premolar teeth, gingiva and mucous membrane of maxillary sinus. Synonym: arteria alveolaris superior posterior, posterior alveolar artery, posterior dental artery. (05 Mar 2000) |
| arteria anastomotica auricularis magna | <anatomy, artery> A vessel of variable origin, most commonly a branch of the circumflex artery, coursing posteriorly through the base of the interatrial septum toward the crux of the heart, anastomosing with coronary artery branches supplying the atrioventricular node, the atrioventricular bundle (bundle of His), and the upper posterior walls of the left ventricle. Synonym: arteria anastomotica auricularis magna. (05 Mar 2000) |
| arteria anastomotica magna | <anatomy, artery> Origin, brachial; distribution, arm muscles at back of elbow; anastomoses, anterior and posterior ulnar recurrent, superior ulnar collateral, profunda brachii, and recurrent interosseous, as part of the articular network of the elbow. Synonym: arteria collateralis ulnaris inferior, arteria anastomotica magna, great anastomotic artery. (05 Mar 2000) |
| arteria angularis | <anatomy, artery> The terminal branch of the facial artery; distribution, muscles and skin of side of nose; anastomoses, lateral nasal, and dorsal artery of nose and palpebrals from the ophthalmic artery, thereby providing an external-internal carotid arterial anastomosis. Synonym: artery of angular gyrus. Synonym: arteria angularis. (05 Mar 2000) |
| arteria aorta | <anatomy> The largest artery in the body which has its origin at the heart. It gives off branches to the extremities, neck and major organs for the purpose of supplying oxygenated blood. (27 Sep 1997) |
| arteria appendicularis | <anatomy, artery> The branch of the ileocolic artery that descends posterior to the terminal ileum in the mesoappendix to supply the vermiform appendix. Synonym: arteria appendicularis. (05 Mar 2000) |
| arteria arcuata | <anatomy, artery> Origin, dorsalis pedis; branches, passes laterally dorsal to the bases of the metatarsals, giving rise to the 2nd, 3rd, and 4th dorsal metatarsal arteries at the level of the medial cuneiform bone. Synonym: arteria arcuata. (05 Mar 2000) |
| arteria articularis azygos | <anatomy, artery> Origin, popliteal; distribution, synovial membrane and cruciate ligaments of knee joint. Synonym: arteria genus media, arteria articularis azygos. (05 Mar 2000) |