| extensor muscle of little finger | <anatomy, muscle> Origin, lateral epicondyle of humerus; insertion, dorsum of proximal, middle, and distal phalanges of little finger; action, extends fingers; nerve supply, radial (posterior interosseous). Synonym: musculus extensor digiti minimi, extensor muscle of little finger, musculus extensor digiti quinti proprius, musculus extensor minimi digiti. (05 Mar 2000) |
|---|---|
| index extensor muscle | extensor indicis muscle |
| finger-to-finger test | A test for coordination and position sense of the upper limbs; the subject is asked to approximate the ends of his index fingers; assesses cerebellar function. (05 Mar 2000) |
| tendon sheath of extensor digitorum and extensor indicis muscles | The synovial sheath that surrounds the four tendons of the extensor digitorum muscle and the tendon of the extensor indicis deep to the extensor retinaculum. Synonym: vagina tendinum musculorum extensoris digitorum et extensoris indicis. (05 Mar 2000) |
| index finger | The second finger (the thumb being counted as the first). Synonym: digitus secundus, forefinger, index, second finger. (05 Mar 2000) |
| abductor muscle of little finger | Origin, pisiform bone and pisohamate ligament; insertion, medial side of base of proximal phalanx of the little finger; action, abducts and flexes little finger; nerve supply, ulnar. Synonym: musculus abductor digiti minimi manus, abductor muscle of little finger, musculus abductor digiti quinti. (05 Mar 2000) |
| short flexor muscle of little finger | Origin, hamulus of hamate bone; insertion, medial side of proximal phalanx of little finger; action, flexes proximal phalanx of little finger; nerve supply, ulnar. Synonym: musculus flexor digiti minimi brevis manus, short flexor muscle of little finger. (05 Mar 2000) |
| opposer muscle of little finger | <anatomy, muscle> Origin, hamulus of the hamate bone and transverse carpal ligament; insertion, shaft of fifth metacarpal; action, "cups" palm, drawing ulnar side of hand toward centre of palm; nerve supply, ulnar. Synonym: musculus opponens digiti minimi, musculus opponens digiti quinti, musculus opponens minimi digiti, opposer muscle of little finger. (05 Mar 2000) |
| bursa of extensor carpi radialis brevis muscle | <anatomy> The bursa between the tendon of the extensor carpi radialis brevis and the base of the third metacarpal. Synonym: bursa musculi extensoris carpi radialis brevis. (05 Mar 2000) |
| short extensor muscle of great toe | <anatomy, muscle> The medial belly of extensor digitorum brevis musculus, the tendon of which is inserted into the base of the proximal phalanx of the great toe. Synonym: musculus extensor hallucis brevis, short extensor muscle of great toe. (05 Mar 2000) |
| short extensor muscle of thumb | <anatomy, muscle> Origin, dorsal surface of radius; insertion, base of proximal phalanx of thumb; action, extends and abducts the thumb; nerve supply, radial. Synonym: musculus extensor pollicis brevis, musculus extensor brevis pollicis, short extensor muscle of thumb. (05 Mar 2000) |
| short extensor muscle of toes | 1. <anatomy, muscle> (foot) Origin, dorsal surface of calcaneus; insertion, by four tendons fusing with those of the extensor digitorum longus, and by a slip attached independently to the base of the proximal phalanx of the great toe; action, extends toes; nerve supply, deep peroneal. Synonym: musculus extensor digitorum brevis, musculus extensor brevis digitorum, short extensor muscle of toes. 2. (hand) A short extensor muscle of the fingers of rare occurrence, and comparable to the short extensor of the toes. Synonym: musculus extensor digitorum brevis manus, Pozzi's muscle. (05 Mar 2000) |
| short radial extensor muscle of wrist | <anatomy, muscle> Origin, lateral epicondyle of humerus; insertion, base of third metacarpal bone; action, extends and abducts wrist radialward; nerve supply, radial. Synonym: musculus extensor carpi radialis brevis, short radial extensor muscle of wrist. (05 Mar 2000) |
| tendon sheath of extensor carpi ulnaris muscle | The synovial sheath surrounding the tendon of the extensor carpi ulnaris in its course deep to the extensor retinaculum. Synonym: vagina tendinis musculi extensoris carpi ulnaris, peritenon. (05 Mar 2000) |
| tendon sheath of extensor digiti minimi muscle | <anatomy> The synovial sheath surrounding the tendon of the extensor digiti minimi in its passage deep to the extensor retinaculum. Synonym: vagina tendinis musculi extensoris digiti minimi. (05 Mar 2000) |