geal joints) Name: Lab Time/Day: corresponding actions. ow, list the extrinsic a

Question

geal joints) Name: Lab Time/Day: corresponding actions. ow, list the extrinsic and intrinsic muscles of the wrist and hand and their Extrinsic Musle Action Intrinsic Mscle Action 7. Palp perform extension anatomi Which tendons and other structures form the anatomical snuff box? ate the anatomical snuff box and perform passive radial/ulnar deviation. Then of the thumb against resistance in order for the tendons comprising the ical snuff box to become prominent. To which muscles do these tendons belong to? the lateral border, floor and the medial border of

Explanation / Answer

abducts 4 ulnar digits

Mnemonic for intrinsic muscles

All for one and one for all(Palmar anatomical position from lateral to medial) this helps in labeling the muscles.

Extrinsic muscles action intrinsic muscles Action Extensor carpi radialis longus extends, abducts wrist abductor pollicis brevis abducts thumb away from Palm. Extensor carpi radialis brevis same as above. flexor pollicis brevis flexs thumb at MCP Extensor digitorum extends wrist, fingers opponens pollicis abducts, flex and pronate first metacarpal Extensor digiti minimi extends little finger at level of all joints adductor pollicis adducts thumb towards palm. Extensor carpi ulnaris extends, abducts wrist opponens digiti minimi abducts, flex, Supinate 5th MCP Abductor pollicis longus extends, abducts thumb flexor digiti minimi flexs little finger at all joints Extensor pollicis longus extends thumb at MCP, IP joints abductor digiti minimi abducts little finger Extensor pollicis brevis extends thumb at MCP joint Palmar interossi adducts 4 ulnar digits Extensor indicis extends wrist, index finger Dorsal interossi

abducts 4 ulnar digits

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