2541828
Descrição
FlashCards por Melissa Denker, atualizado more than 1 year ago
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Criado por Melissa Denker
mais de 9 anos atrás
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| Questão | Responda |
| Location of extrinsic extensor muscles | Posterior compartment of forearm |
| Extrinsic extensors of hand/Posterior compartment of forearm muscles (9) | Extensor carpi radialis longus m. Extensor carpi radialis brevis m. Extensor digitorum m. Extensor digiti minimi m. Extensor carpi ulnaris m. Abductor pollicis longus m. Extensor pollicis brevis m. Extensor pollicis longus m. Extensor indicis m. |
| Extensor carpi radialis longus m. Origin? Innervation? Function? (2) | Origin: supracondylar ridge (humerus), lateral epicondyle (humerus) --> dorsal surface of metacarpal 2 Innervation: radial nerve Function: extension of wrist, abduction of wrist |
| Extensor carpi radialis brevis m. Origin? Innervation? Function? (2) | Origin: lateral epicondyle (humerus) --> dorsal surfaces of the bases of metacarpals 2 and 3 Innervation: radial nerve (deep branch before supinator m.) Function: extension of wrist, abduction of wrist |
| Extensor digitorum m. Origin? Innervation? Function? (2) | Origin: lateral epicondyle (humerus) --> 4 tendons on the dorsal surfaces of middle/distal phalanges of index/middle/ring/little fingers via extensor hoods Innervation: posterior interosseous nerve Function: extension of fingers, extension of wrist |
| Extensor digiti minimi m. Origin? Innervation? Function? (1) | Origin: lateral epicondyle (humerus) --> extensor hood of little finger Innervation: posterior interosseous nerve Function: extension of little finger |
| Extensor carpi ulnaris m. Origin? Innervation? Function? (2) | Origin: lateral epicondyle (humerus) --> medial side of base of metacarpal 5 Innervation: posterior interosseous nerve Function: extension of wrist, adduction of wrist |
| Abductor pollicis longus m. Origin? Innervation? Function? (2) | Origin: proximal posterior surfaces of radius and ulna, interosseous membrane --> lateral side of base of metacarpal 1 Innervation: posterior interosseous nerve Function: abduction of thumb at carpometacarpal joint, accessory exteion of thumb |
| Extensor pollicis brevis m. Origin? Innervation? Function? (2) | Origin: posterior surface of radius, interosseous membrane --> dorsal surface of base of proximal phalanx of thumb Innervation: posterior interosseous nerve Function: extension of thumb at metacarpophalangeal joint, extension of thumb at carpometacarpal joint |
| Extensor pollicis longus m. Origin? Innervation? Function? (3) | Origin: posterior surface of ulna, interosseous membrane --> dorsal surface of distal phalanx of thumb Innervation: posterior interosseous nerve Function: extension of thumb at interphalangeal joint, extension of thumb at MCP joint, extension of thumb at carpometacarpal joint |
| Extensor indicis m. Origin? Innervation? Function? (1) | Origin: posterior surface of ulna, interosseous membrane --> extensor hood of index finger Innervation: posterior interosseous nerve Function: extension of index finger |
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