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OT Kines Hand
OT kinesiology hand Quiz Prep
Question | Answer |
---|---|
How any actions does the CMC joint perform? | 6 |
What kind of joint is the thumb MCP and IP | Uniaxial |
What kind of joint is the CMC joint of the thumb? | Saddle, biaxial |
what kind of joint is the CMC finger joint? | nonaxial, synovial |
what kind of joint is the MCP joint? | biaxial, condyloid joint (knuckles) |
what two ligaments make up the flexor retriculum? | palmar carpal ligament/ tranverse carpal ligament |
what is the function of the flexor retriculum? | hold tendons close to wrist and prevent carpal bones from spreading out |
what is the function of the extensor retinaculum ligament? | holds EXTENSOR tendons close towards wrist during wrist extension |
what is the function of the extensor expansion ligament? | extensor hood, connection to DIP, keeps extensor tendon in midline |
what creates hand arches? | shaped by bones and ligaments |
what is the function of hand arches? | to permit different grasps |
which muscle originates on the lateral epicondyle, acts to extend all 3 finger joints, and innervates on radial nerve? | extensor digitorum muscle |
do the extensors or the flexors innervate on the radial nerve? | extensors (extensor indicis, extensor digitorum, extensor minimi) |
what are the intrinsic muscles of the hand used for? | precision or fine motor |
what are the 3 divisions of the intrinsic muscles? | thenar eminence / hypothenar eminence/ palm (deep palm) |
what innervates the intrinsic muscles? | median nerve |
what is the function of the palmaris brevis? | deepens hollow in palm |
Do the muscles on the dorsal side extend or flex? | extend |
Do the muscles on the anterior (ventral) side flex or extend? | flex |
what happens with swan neck deformities? | FLEX of MCP, hyperextension of PIP, FLEX of DIP (FHEF) |
what happens with boutonniere deformity? | EXT of MCP, FLEX of PIP, EXT of DIP (EFE) |
what happens with trigger finger (stenosing tenosynovitis) | becomes locked in flexion, baseball injury, sheth or tendon swells |