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21 Cards in this Set
- Front
- Back
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pronator quad
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o distal, ant ulna → distal, ant radius
o primary pronator o median nerve o weakness: difficult pronation w/ elbow flexed, distal RA joint instability o tightness: restricted sup ROM |
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flexor carpi radialis
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o wrist flexion & radial dev
o CFT → bases of M2 & M3 o median nerve, C6-7 o weakness/tightness → muscle imbalances |
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flexor carpi ulnaris
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o *largest CSA of wrist muscles
o CFT, med olecranon, ulna → pisiform, hook of hamate, M5 o wrist flexion, ulnar dev, & **stabilization o ulnar nerve, C7-T1 o weakness: ↓ strength in common diagonal movement (hammering a nail) o tightness • seen w/ wrist instability & RA • limited ROM → interferes w/ powerful grasp |
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palmaris longus
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o CFT → flexor retinaculum & palmar aponeurosis
o median nerve, C7-8 o flexion, tightens palm |
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ext carpi radialis long & brev
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o (brevis stronger)
o supracond ridge, CET → base of M2 (longus), base of M3 (brevis) o radial nerve C6-7, C7-8 o weakness: • ↓ extension → ↓ grasp & pinch strength o tightness: • ↓ flexion ROM (difficult wiping) |
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ext carpi ulnaris
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o extension, ulnar dev (biggest MA)
o CET & post ulna → medial side of M5 o radial nerve, C7-8 o weakness: weak grip & pinch, muscle imbalance o tightness: ↓ wrist flexion & radial dev ROM |
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flexor digit superficialis
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o flexes CMC & PIP joints
o CFT, coronoid process, medial collateral lig, ant R → flexor sheath → (splits) to palmar side of mid P o median nerve, C8-T1 o weakness • PIP flexion • wrist flexion grip strength o tightness • claw hand |
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flexor digit profundus
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o medial ulna, IO memb, post ulna → palmar base of distal phalanx 2-5
o strong flexor of fingers (deepest, greatest MA) • bowstringing ↑ strength o median nerve: P2-3 o ulnar nerves: P4-5 o weakness • finger flexion, DIP flexion, pinch grip o tightness • ↓ extension, potential claw hand |
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extensor digit
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o extends finger
• must have help from intrinsics w/ PIP & DIP o CET, fascia, intermusc septum → extensor hood → splits into central tendon + 2 lat bands → DIP o radial nerve, C7-8 o weakness: o tightness: • limits DIP & PIP flexion (central tendon becomes taut) • → hyperextension @ MCP w/ flexion @ IP o *juncturae tendinae (fascia) • increases strength of single-finger ext. • keeps tendons bound down |
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ext digiti minimi
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o CET → extensor hood → joins ext dig tendon OR ulnar side- stays separate
o MCP flexion, helps w/ PIP, DIP o radial nerve, C7-8 o weakness: weak MCP ext o tightness: same at ext dig |
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flexor pol longus
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o ant radius, IO memb → palmar distal phalanx
o flexes all thumb joints • *only one to flex DIP o median nerve o weakness: grasp & pinch problems o tightness: • “thumb in palm” deformity or “Ape Hand” deformity |
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abductor pol longus
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o post radius, ulna, IO memb → trapezium & base of M1
• anterior border of snuffbox o abducts & extends thumb, some radial dev • *misnamed: should be called extensor • not a great MA for abduction (prime abd is abd pol brevis) o 1 of the longest MA's for radial deviation o radial nerve o weakness: • CMC extension → weak pinch o tightness: ↓ flexion ROM |
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ext pol brevis
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o post radius & IO memb → dorsal base P1
o extends CMC & MCP o radial nerve |
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ext pol longus
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o extends all thumb joints, can adduct thumb & wrist
[Finkleshtien’s test → + = tinosynovitis = inflammation of both tendons] o lat post mid 1/3 ulna, IO memb → dorsal base P1 o radial nerve o weakness: weak IP extension o tightness: muscle imbalance |
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abd pol brev
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o CMC abd, medial rot, opposition & IP extension
o flexor retinac, scaphoid, trapezium → radial base of P1, extensor expansion of EPL o median nerve, C8-T1 o weakness: • median n. palsy, flat thenar em • ape thumb → can’t position thumb for pinch or grasp |
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flexor pol brev
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o flexor retinac, trapezium, trapezoid, capitate → (sesamoid) → radial base P1
o flex all thumb joints o superfic: median nerve (deep: ulnar nerve) o weak: weak pinch |
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opponens pol
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o flexor retinac, trapezium → lateral M1
o median nerve o weak: difficult positioning & stabilization for pinch/grasp |
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adductor pol
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o flex MCP, flex & adduct CMC
o M2-4, palmar carpal ligs → (sesamoid bone) → base P1, extensor hood o ulnar nerve o weak: deficits in pinch/grasp o tight: thumb-in-palm deformity |
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dorsal IO
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o 4 of em
o abduct MCP, flex MCP joints, ext IP joints o adjacent sides of 2 MC bones → radial or ulnar bases of P2-4 o ulnar nerve o weak: • loss of balance → claw hand • ↓ pinch/grasp |
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palmar IO
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o 3 of em
o adduct MCP2, 4, 5 o ulnar side M2, radial sides M4-5 → extensor hood of same finger o ulnar nerve o weak: • loss of balance → claw hand • ↓ pinch/grasp |
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lumbricals
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o tendons of FDP → radial side of extensor expansions
o flex MCP & ext IP o 2-3: median n o 4-5: ulnar n o weak: • assess w/ MCP flexed, IP extended • claw hand |
