Term
| name the carpal bones starting on the radial, proximal side |
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Definition
| scaphoid, lunate, triquetrum, pisoform, trapezium, trapezoid, capitate, hamate (some lovers try positions that they can't handle) |
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Term
| what is the most commonly fractured carpal bone? |
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Definition
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Term
| what is the fascia on the palm of the hand called? |
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Definition
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Term
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Definition
| trauma to flexor tendons, causing scar tissue and then a nodule that catches |
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Term
what are the palmar hypothenar muscles?
innervated by? |
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Definition
abductor digiti minimi, flexor digiti minimi brevis, opponens digiti minimi.
all innervated by the deep ulnar nerve |
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Term
what are the palmar thenar muscles?
innervated by? |
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Definition
| abductor pollicis brevis, flexar pollicis opponens pollicis (all innervated by the recurrent branch of the median nerve) and the adductor pollicis (innervated by the deep branch of the ulnar nerve) |
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Term
lumbricals, where are how many?
innervation and function |
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Definition
small, intrinsic hand muscles that arise from the sides of FDP tendons (4)
innervated by median (lateral 2) and ulnar nerve (medial 2)
serve as bye-bye muscles; flex the MCP joint and extend the interphalangeal joint |
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Term
| palmar interossei, function and innervation |
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Definition
| adduct digits to the axial line and are innervated by the deep branch of the ulnar nerve |
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Term
| dorsal interossei, function and innervation |
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Definition
| abduct digits away from the axial line; are innervated by the deep branch of the ulnar nerve |
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Term
| what passes through the carpal tunnel |
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Definition
9 long flexors and one median nerve
flexor digitorum superficialis (FDS), flexor digitorum profunda (FDP), flexor pollicis longus |
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Term
| what part of the median nerve is not affected by carpal tunnel impingement? |
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Definition
| palmar carpal branch of the median nerve |
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Term
| what does the median nerve do in the hand? |
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Definition
| gives off the recurrent branch to the thenar muscles, motor innervates the 1st and 2nd lumbricals, gives off common and proper digital nerves that innervate 3.5 digits |
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Term
| what does the ulnar nerve do in the hand? |
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Definition
| deep branch innervates almost all the intrinsic hand muscles (fine motor) and the superficial branch gives common/proper to supply sensation for 1.5 digits |
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Term
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Definition
| mainly formed by ulnar artery |
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Term
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Definition
| mainly formed by radial artery |
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Term
| what is the distribution of teh ulnar/radial arterial perfusion of digits? |
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Definition
3.5 medial --> ulnar
1.5 lateral --> radial |
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Term
| intrinsic muscles of the hand are innervated by what nerve roots? |
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Definition
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