| anterior interosseous nerve | <anatomy, nerve> A branch of the median arising in elbow region, running on interosseous membrane, supplying the flexor pollicis longus, part of flexor digitorum profundus and the pronator quadratus muscles, as well as radiocarpal and intercarpal joints. Synonym: nervus interosseus anterior, ramus profundus nervi radialis, nervus antebrachii anterior, anterior antebrachial nerve, volar interosseous nerve. (05 Mar 2000) |
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| palmar interosseous artery | <anatomy, artery> One of the three arteries springing from the deep palmar arch and running in the three medial interosseous spaces; they anastomose with the common palmar and dorsal metacarpal arteries. Synonym: arteria metacarpea palmaris, palmar interosseous artery. (05 Mar 2000) |
| palmar interosseous muscle | <anatomy> Three muscles in the hand; origin, first: ulnar side of second metacarpal; second and third: radial sides of fourth and fifth metacarpals; insertion, first: into ulnar side of index; second and third: into radial sides of ring and little fingers; action, adducts fingers toward axis of middle finger; nerve supply, ulnar. See: flexor pollicis brevis muscle. Synonym: musculus interosseus palmaris, musculus interosseus volaris. (05 Mar 2000) |
| recurrent interosseous artery | <anatomy, artery> Origin, posterior interosseous; distribution, elbow joint; anastomoses, branches of profunda brachii and inferior ulnar collateral, i.e., articular vascular network of elbow. Synonym: arteria interossea recurrens. (05 Mar 2000) |
| volar interosseous artery | <anatomy, artery> Origin, common interosseous; distribution, deep parts of the forearm anteriorly; anastomoses, posterior interosseous. Synonym: arteria interossea anterior, arteria interossea volaris, volar interosseous artery. (05 Mar 2000) |
| volar interosseous nerve | <anatomy, nerve> A branch of the median arising in elbow region, running on interosseous membrane, supplying the flexor pollicis longus, part of flexor digitorum profundus and the pronator quadratus muscles, as well as radiocarpal and intercarpal joints. Synonym: nervus interosseus anterior, ramus profundus nervi radialis, nervus antebrachii anterior, anterior antebrachial nerve, volar interosseous nerve. (05 Mar 2000) |
| common interosseous artery | <anatomy, artery> Origin, ulnar; branches, anterior and posterior interosseous. Synonym: arteria interossea communis. (05 Mar 2000) |
| plantar interosseous muscle | <anatomy> Three intrinsic muscles of foot; origin, the medial side of the third, fourth, and fifth metatarsal bones; insertion, corresponding side of proximal phalanx of the same toes; action, adducts three lateral toes; nerve supply, lateral plantar. Synonym: musculus interosseus plantaris. (05 Mar 2000) |
| posterior interosseous artery | <anatomy, artery> Origin, common interosseous artery; distribution, posterior compartment of forearm. Synonym: arteria interossea posterior, dorsal interosseous artery. (05 Mar 2000) |
| posterior interosseous nerve | <anatomy, nerve> The deep terminal branch of the radial nerve, arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm. Synonym: nervus interosseus posterior, nervus antebrachii posterior, deep branch of the radial nerve, dorsal interosseous nerve, nervus interosseus dorsalis, posterior antebrachial nerve. (05 Mar 2000) |
| crural interosseous nerve | <anatomy, nerve> A nerve given off from one of the muscular branches of the tibial nerve which passes down over the posterior surface of the interosseous membrane supplying it and the two bones of the leg. Synonym: nervus interosseus cruris, interosseous nerve of leg. (05 Mar 2000) |
| dorsal interosseous artery | <anatomy, artery> Origin, common interosseous artery; distribution, posterior compartment of forearm. Synonym: arteria interossea posterior, dorsal interosseous artery. (05 Mar 2000) |
| dorsal interosseous muscles of foot | Four muscles in the foot; origin, from sides of adjacent metatarsal bones; insertion, first into medial, second into lateral side of proximal phalanx of second toe, third and fourth into lateral side of proximal phalanx of third and fourth toes; action, abduct toes 2-4 from an axis through the second toe; nerve supply, lateral plantar. Synonym: musculi interossei dorsalis pedis. (05 Mar 2000) |
| dorsal interosseous muscles of hand | Four muscles in the hand; origin, sides of adjacent metacarpal bones; insertion, proximal phalanges and extensor expansion, first on radial side of index, second on radial side of middle finger, third on ulnar side of middle finger, fourth on ulnar side of ring finger; action, abduct fingers 2-4 from the axis of the middle finger, nerve supply, ulnar. Synonym: musculi interossei dorsalis manus. (05 Mar 2000) |
| dorsal interosseous nerve | <anatomy, nerve> The deep terminal branch of the radial nerve, arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm. Synonym: nervus interosseus posterior, nervus antebrachii posterior, deep branch of the radial nerve, dorsal interosseous nerve, nervus interosseus dorsalis, posterior antebrachial nerve. (05 Mar 2000) |