| musculus extensor coccygis | <anatomy> An inconstant and poorly developed muscle on the dorsal surfaces of the sacrum and coccyx, the remains of a portion of the tail musculature of lower animals. Synonym: musculus sacrococcygeus dorsalis, dorsal sacrococcygeal muscle, musculus extensor coccygis, musculus sacrococcygeus posterior. (05 Mar 2000) |
|---|---|
| musculus extensor digiti minimi | <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) |
| musculus extensor digiti quinti proprius | <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) |
| musculus extensor hallucis brevis | <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) |
| musculus extensor indicis | <anatomy, muscle> Origin, dorsal surface of ulna; insertion, dorsal extensor aponeurosis of index finger; action, assists in extending the forefinger; nerve supply, radial. Synonym: musculus extensor indicis, index extensor muscle, musculus extensor indicis proprius. (05 Mar 2000) |
| musculus extensor indicis proprius | <anatomy, muscle> Origin, dorsal surface of ulna; insertion, dorsal extensor aponeurosis of index finger; action, assists in extending the forefinger; nerve supply, radial. Synonym: musculus extensor indicis, index extensor muscle, musculus extensor indicis proprius. (05 Mar 2000) |
| musculus extensor minimi digiti | <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) |
| musculus extensor ossis metacarpi pollicis | <anatomy> Origin, interosseous membrane and posterior surfaces of radius and ulna; insertion, lateral side of base of first metacarpal bone; action, abducts and assists in extending thumb; nerve supply, radial. Synonym: musculus abductor pollicis longus, long abductor muscle of thumb, musculus extensor ossis metacarpi pollicis. (05 Mar 2000) |
| musculus extensor pollicis brevis | <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) |
| musculus quadriceps extensor femoris | <anatomy, muscle> Origin, by four heads: rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis; insertion, patella, and thence by ligamentum patellae to tuberosity of tibia; action, extends leg; flexes thigh by action of rectus femoris; nerve supply, femoral. Synonym: musculus quadriceps femoris, musculus quadriceps extensor femoris, quadriceps muscle of thigh. (05 Mar 2000) |
| caput humeroulnare musculi flexoris digitorum superificialis | <anatomy> The head of the superficial flexor of the digits that attaches to both the humerus and the ulna. Synonym: caput humeroulnare musculi flexoris digitorum superificialis. (05 Mar 2000) |
| vaginae fibrosae digitorum manus | Fibrous sheaths of the digits of the hand, the tubular fibrous layers that enclose the synovial sheaths and the superficial and deep flexor tendons and the tendon of the flexor pollicis longus in their passage along their respective digits; they are composed of annular and cruciform parts. Synonym: vaginae fibrosae digitorum manus. (05 Mar 2000) |
| vaginae fibrosae digitorum pedis | Fibrous sheaths of the toes, the tubular fibrous layer enclosing the synovial sheath and the tendons of the long and short flexors of the toes and the flexor hallucis longus in the digits; they are composed of annular and cruciform parts. Synonym: vaginae fibrosae digitorum pedis. (05 Mar 2000) |
| vaginae synoviales digitorum manus | The synovial sheaths that enclose the flexor tendons of the fingers and line the inside of the fibrous tendon sheaths. Synonym: vaginae synoviales digitorum manus. (05 Mar 2000) |
| vaginae synoviales digitorum pedis | Similar in structure to the corresponding sheaths of the hand. Synonym: vaginae synoviales digitorum pedis. (05 Mar 2000) |