| arcus pedis longitudinalis pars lateralis | Formed by calcaneus, cuboid and two lateral metatarsals; the combined arch is supported normally by ligaments, intrinsic muscles, and the tendons of extrinsic muscles of the foot. Synonym: arcus pedis longitudinalis pars lateralis. (05 Mar 2000) |
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| arcus pedis longitudinalis pars medialis | Formed by the calcaneus, talus, navicular, three cuneiform bones, and the three medial metatarsals. Synonym: arcus pedis longitudinalis pars medialis. (05 Mar 2000) |
| arcus pedis transversalis | The arch formed by the proximal parts of the metatarsal bones, the three cuneiform bones, and the cuboid. Synonym: arcus pedis transversalis. (05 Mar 2000) |
| arcus plantaris | The arterial arch formed by the lateral plantar artery running across the bases of the metatarsal bones and anastomosing with the dorsal pedis artery, either of two bony arch's of the foot, longitudinal arch or transverse arch. See: medial longitudinal arch of foot, lateral longitudinal arch of foot, transverse arch of foot. Synonym: arcus plantaris, plantar arterial arch. (05 Mar 2000) |
| arcus posterior atlantis | The posterior arch of the atlas that connects the lateral masses of the atlas posteriorly, forming the posterior wall of the vertebral canal at this level. Synonym: arcus posterior atlantis. (05 Mar 2000) |
| arcus pubis | The arch formed by the symphysis, bodies and inferior rami of the pubic bones. See: subpubic angle. Synonym: arcus pubis. (05 Mar 2000) |
| arcus raninus | An anastomosis between the right and the left end-branch of the deep lingual artery. Synonym: arcus raninus. (05 Mar 2000) |
| arcus senilis | <clinical sign, ophthalmology> An opaque ring around the iris (coloured portion of the eye), seen most often in elderly people. (27 Sep 1997) |
| arcus superciliaris | A fullness extending laterally from the glabella on either side, above the orbital margin of the frontal bone. Synonym: arcus superciliaris, superciliary ridge. (05 Mar 2000) |
| arcus tarseus | See: arterial arch of lower eyelid, arterial arch of upper eyelid. (05 Mar 2000) |
| arcus unguium | Origin: L, prop, a little moon. See Lunule. <anatomy> Same as Lunule. Source: Websters Dictionary (01 Mar 1998) |
| arcus venosus dorsalis pedis | The arch in the subcutaneous tissue of the dorsum of the foot formed by the dorsal and digital veins; it unites medially with the dorsal vein of the great toe to form the great saphenous vein, and laterally with the dorsal vein of the little toe to form the small saphenous. Synonym: arcus venosus dorsalis pedis. (05 Mar 2000) |
| arcus venosus juguli | A connecting vein between the two anterior jugular veins in the suprasternal space. Synonym: arcus venosus juguli. (05 Mar 2000) |
| arcus venosus palmaris profundus | The venous arch that accompanies the deep palmar arterial arch it usually consists of paired venae comitantes. Synonym: arcus venosus palmaris profundus. (05 Mar 2000) |
| arcus venosus palmaris superficialis | The venous arch accompanying the superficial palmar arterial arch it consists usually of paired venae comitantes and is drained by the superficial ulnar and radial veins. Synonym: arcus venosus palmaris superficialis. (05 Mar 2000) |