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10 Cards in this Set
- Front
- Back
Opponens Pollicis
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Origin: Trapezium (gm); flexor retinaculum
Insertion:lateral border of 1st metacarpal Action: opposition; thumb adduction |
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Abductor Pollicis Brevis
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Origin:Trapezium (gm); scaphoid (navicular); transverse carpal ligament
Insertion: base of 1st phalange of thumb lateral Action:thumb abduction; thumb opposition |
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Adductor Pollicis (two parts: tranverse and oblique)
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Origin:distal 2/3 or 3rd metacarpal; base of 2nd and 3rd metacarpal and top of capitate
Insertion:inside base of 1st phalange of thumb Action:thumb adduction; thumb flexion |
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Flexor Pollicis Brevis
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Origin: inside of the base of the 1st metacarpal; trapezium; flexor retinaculum
Insertion:base of 1st phalange of thumb Action:thumb flexion; thumb adduction; thumb opposition |
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Opponens Digiti Minimi
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Origin:hamate; flexor retinaculum
Insertion:outside surface of 5th metacarpal Action:little finger/thumb opposition; little finger adduction; little finger flexion |
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Abductor Digiti Minimi
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Origin:pisiform and tendon of flexor carpi ulnaris which inserts on the hamate
Insertion: base of 1st phalange of little finger Action:abduction of the little finger; flexion of the little finger |
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Flexor Digiti Minimi Brevis
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Origin:Hamate and flexor retinaculum
Insertion:base of 1st phalange of the little finger outside Action:little finger flexion; little finger opposition |
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Dorsal Interossei (4)
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Origin:Adjacent sides of all 5 metacarpals except extreme lateral and medial sides (8 Os)
Insertion:Base of 1st phalange of 2nd,3rd,4th fingers (middle finger both sides) Action:Abducts fingers 2 and 4; finger extension through tendon of extensor digitorum |
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Palmar Interossei
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Origin:2nd,4th, and 5th metacarpals facing middle finger
Insertion:base of 2,4,5 fingers facing middle finger Action:finger adduction; finger flexion |
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Lumbricales (4)
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Origin:4 tendons of flexor digitorum profundus above carpal/metacarpal junction
Insertion:Tendons of FDP AND posteriorly on the tendons of the extensor digitorum communis (EDC) Action:finger flexion through the tendons of FDP; finger EXTENSION through the tendons of EDC |