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40 Cards in this Set
- Front
- Back
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wrist articulations |
distal end of radius to scaphoid and lunate, and triquetral during ulnar deviation |
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wrist classification |
synovial ellipsoid |
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movements of wrist |
flexion/extension radial/ulnar deviation |
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capsule |
bw distal radius and ulna and the proximal row of carpal bones |
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ligaments |
- all are intrinsic |
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dorsal lig |
resists flexion |
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palmar ligament |
resists extension |
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ulnar collateral |
resist radial deviation |
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radial collateral |
resist ulnar deviation |
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3 kinds of joints in hand |
- intercarpal joints- bw adjacent carpals - carpometacarpal joints- carpal + metacarpal - intermetacarpal joints- bw adjacent metacarpals 2-5 |
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classification of joints |
synovial planar - includes all intercarpal joints, all intermetacarpal joints, and all carpometacarpal joints except 1st - movement- allows hand to conform to irregular surfaces |
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intercarpal, carpometacarpal, and intermetacarpal ligaments |
k |
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dorsal |
- intrinsic - resist palmar movement; concaving movement |
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palmar |
- intrinsic - resists dorsal movement; convexing movement |
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interosseous |
- extrinsic - holds bones together |
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----- |
---- |
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flexor retinaculum |
- extrinsic - holds tendons down and prevents bowstringing - attachment site for intrinsic muscles of hand - median nerve is underneath flexor retinaculum - carpal tunnel. |
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attachment sites for flexor retinaculum |
S, Tm, H, P |
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carpal tunnel syndrome |
impingement of the median nerve in the carpal tunnel |
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carpometacarpal joint of thumb |
flexion/extension abduction/adduction opposition (abduction,flexion,adduction) /reposition |
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dorsal carpometacarpal |
checks flexion |
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palmar carpometacarpal |
checks extension |
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radial collateral |
checks adduction |
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metacarpophalangeal joints |
theres proximal middle and distal phalanges for 2-5, but not 1 |
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MCP joint is |
condyloid |
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review MCP actions |
ok |
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Interphalangeal joints |
- articulations- heads and bases of adjacent phalanges - classification- synovial ginglymus - movements- flexion/extension |
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MCP AND IP ligaments |
k |
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palmar |
- fibrocartilage - checks extension |
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radial collateral |
checks adduction/varus |
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ulnar collateral |
checks valgus/abduction |
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CMJ of thumb |
most impt joint of upper extremity - flexion/extension - abduction- towards ceiling - adduction- towards table - opposition- thumb to pinky - reposition- putting it back |
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radial collateral ligament |
lateral trapezium to radial side base of 1st met - checks varus/adduction |
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palmar carpometacarpal ligament |
palmar aspect of trapezium and first metacarpal - checks extension |
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dorsal carpometacarpal ligament |
dorsal aspect of trapezium and first metacarpal - checks flexion |
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MPJ |
- synovial condyloid joint - middle finger can only abduct |
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metacarpophalangeal and interphalangeal ligaments |
THICK DENSE fibrocartilaginous structuers so that flexor tendons slip in and out - sometimes referred to as palmar or volar plate |
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radial collateral |
radial surface of adjacent bones - checks varus/adduction |
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ulnar collateral |
ulnar surface of adjacent bones - checks valgus/abduction |
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deep transverse metacarpal |
- extrinsic - 3 short and wide flattened bands - interconnects the heads and palmar ligaments of the 2,3 ,4, and 5 MP joints - does not attach to thumb - jimmy page ligament |
