| lumbrical muscle of foot | Four intrinsic muscles of the foot; origin, first: from tibial side of tendon to second toe of flexor digitorum longus; second, third, and fourth: from adjacent sides of all four tendons of this musculus; insertion, tibial side of extensor tendon on dorsum of each of the four lateral toes; action, flex the proximal and extend the middle and distal phalanges; nerve supply, lateral (second to fourth lumbricals) and medial (first lumbrical) plantar. Synonym: musculus lumbricalis pedis. (05 Mar 2000) |
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| lumbrical muscle of hand | Four intrinsic muscles of the hand; origin, the two lateral: from the radial side of the tendons of the flexor digitorum profundus going to the index and middle fingers; the two medial: from the adjacent sides of the second and third, and third and fourth tendons; insertion, radial side of extensor tendon on dorsum of each of the four fingers; action, flexes metacarpophalangeal joint and extends the proximal and distal interphalangeal joint; nerve supply, the two radial muscles by the median, the two ulnar muscles by the ulnar. Synonym: musculus lumbricalis manus. (05 Mar 2000) |
| lumbrical | <anatomy> Resembling a worm; as, the lumbrical muscles of the hands of the hands and feet. A lumbrical muscle. Origin: Cf. F. Lombrical. See Lumbric. Source: Websters Dictionary (01 Mar 1998) |
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| lumbrical m.’s of foot |
musculi lumbricales pedis.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| lumbrical m.’s of hand |
musculi lumbricales manus.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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