Term
| what are the three borders of the cubital fossa? |
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Definition
| the pronator teres, brachioradialis, and imaginary line between medial and lateral epicondyles |
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Term
| anterior compartment muscles of the forearm do what actions? |
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Definition
| flex digits and wrist and pronate the hand |
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Term
| posterior compartment muscles of the forearm do what actions? |
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Definition
| extend wrist and digits and supinate hand |
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Term
what is a colles' fracture?
where does the fractured fragment move and what is this called? |
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Definition
distal fracture of the radial bone
radius fragment moves posterior and is called "dinner fork deformity" |
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Term
| what are the names of the fascia around the wrist? |
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Definition
| flexor and extensor retinaculum and the palmar carpal ligament (more superficial) |
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Term
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Definition
flexes the forearm (attaches to brachium and radius)
innervated by radial nerve (exception to the rule - radial nerve typically innervates the extensors) |
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Term
| supinator (incl position) |
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Definition
below the brachioradialis on the lateral portion of the forearm
supinates the forearm
innervated by the deep radial nerve |
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Term
| what innervates most of the flexor forearm muscles? |
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Definition
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Term
| what are the four superficial forearm flexors? (in order, lateral to medial) |
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Definition
| pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris |
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Term
| what is the fifth 'superficial' forearm flexor? |
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Definition
| flexor digitorum superficialis (FDS) |
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Term
| what are the deep flexor/pronator forearm muscles? |
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Definition
| flexor digitorum profundus, flexor pollicus longus, pronator quadratus |
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Term
| what is ulnar nerve innervated in the anterior forearm? |
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Definition
| flexor carpi ulnaris, 1/2 of the flexor digitorum profundus |
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Term
| what branches of the median nerve in the deep anterior forearm? |
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Definition
| the anterior interosseous nerve (AIN) |
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Term
what initiates pronation of the forearm?
assisted by XXX, when more speed/power is needed? |
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Definition
the pronator quandratus
the pronator teres |
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Term
| what does the flexor digatorum superficialis do? |
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Definition
| flexes middle phalanx at the proximal interphalangeal joint |
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Term
| what does the flexor digatorum profundus do? |
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Definition
| flexes distal phalanx at the distal interphalangeal joint |
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Term
| what are the three extensors of the wrist? |
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Definition
| extensor carpi radialis longus, extensor carpi radialis brevis, and extensor carpi ulnaris, |
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Term
| what are the three extensors of the digits? |
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Definition
| extensor digitorum, extensor indicis, extensor digiti minimi |
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Term
| what are the extensors/abductors of the thumb? |
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Definition
| abductor pollicis longus, extensor pollicus brevis, extensor pollicus longus |
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Term
| what can be palpated in the snuff box? |
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Definition
| the radial artery and the scaphoid bone |
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Term
| what do the superficial and deep branches of the radial nerve do? |
|
Definition
superficial - cutaneous/sensory to lateral forearm and hand
deep - inserts into supinator muscle and then exits to become posterior interosseous nerve (PIN) |
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Term
| what does the ulnar nerve do in the forearm? |
|
Definition
| innervates flexor carpi ulnaris and 1/2 of flexor digatorum profundus and then passes through the Canal of Guyon at the wrist; then innervates intrinsic hand muscles |
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Term
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Definition
| covers the head of the radius, attaches to the ulna; allows supination/pronation |
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Term
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Definition
| radial head is pulled out of the annular ligament |
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Term
| what bones does the radius articulate with at the wrist? |
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Definition
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Term
| what ligaments hold the knuckles (metacarpal joints) together? |
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Definition
| palmar plate on each knuckle and the deep transverse metacarpal ligament across the knuckles |
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Term
| what is game keeper's/skier's thumb? |
|
Definition
| rupture of the ulnar collateral ligament of the thumb b/t the metacarpal and first phalanx |
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Term
| what does the radial nerve innervate? (4 things/regions, use acronym) |
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Definition
| BEST - brachioradialis, extensors, supinator, triceps |
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