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12 Cards in this Set
- Front
- Back
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Supinator
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Origin: Lateral epicondyle of humerus, radial collateral and anular ligaments
Insertion: Lateral surface of radius Function: Supination Innervation: Posterior interosseous nerve Blood: Recurrent interosseous a. |
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Abductor pollicis longus
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Origin: Posterior surfaces of radius and ulna
Insertion: Lateral base of metacarpal 1 Function: Abducts thumb, accessory extensor of thumb Innervation: Posterior interosseous nerve Blood: Posterior interosseous a. |
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Extensor pollicis brevis
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Origin: Posterior surface of radius
Insertion: Dorsal surface of base of proximal phalanx of thumb Function: Extends MCP joint of thumb Innervation: Posterior interosseous nerve Blood: Posterior interosseous a. |
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Extensor pollicis longus
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Origin: Posterior surface of ulna
Insertion: Dorsal surface of base of distal phalanx of thumb Function: Extends IP joint of thumb, can also extend CMC and MCP joints Innervation: Posterior interosseous nerve Blood: Posterior interosseous a. |
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Extensor indicis
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Origin: Posterior surface of ulna
Insertion: Extensor hood of index finger Function: Extends index finger Innervation: Posterior interosseous nerve Blood: Posterior interosseous a. |
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Dorsal interossei
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Origin: Adjacent sides of metacarpals
Insertion: Extensor hood and base of proximal phalanges digits 2-4 Function: Abduction of fingers Innervation: Deep branch of ulnar nerve Blood: Dorsal and palmar metacarpal aa. |
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Palmar interossei
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Origin: Sides of metacarpals
Insertion: Extensor hoods of digits 1, 2, 4, and 5 Function: Adduction of fingers Innervation: Deep branch of ulnar nerve Blood: Palmar metacarpal aa. |
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Adductor pollicis
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Origin: Metacarpal 3, bases of metacarpals 2 and 3
Insertion: Base of proximal phalanx and extensor hood of thumb Function: Adducts thumb Innervation: Deep branch of ulnar nerve Blood: Deep palmar arterial arch |
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Lumbricals
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Origin: Tendons of flexor digitorum profundus
Insertion: Extensor hoods of digits 2-5 Function: Flex MCP joints while extending IP joints Innervation: Medial two by deep ulnar n., lateral two by median n. |
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Thenar muscles
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Opponens pollicis, Abductor pollicis brevis, Flexor pollicis brevis - innervated by median n.
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Hypothenar muscles
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Opponens digiti minimi, Abductor digiti minimi, Flexor digiti minimi brevis - Innervated by deep branch of the ulnar nerve
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Posterior compartment of arm
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Triceps brachii - innervated by radial nerve
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