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47 Cards in this Set
- Front
- Back
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Firmly attached to the proximal phalanges and loosely united to metacarpals
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Palmar Ligaments
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during this action, the palmar ligaments slide up and down along the palmar surface of metacarpals
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flexion and extension
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unite the palmar ligaments at metacarpal phalanges jts
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deep transverse ligiments
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anterior to the deep tranverse ligaments
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lumbricals
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posterior to the deep tranverse ligaments
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interossei
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inserted into deep tranverse ligaments
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extensor expansions
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tightne in flexion and loose in extension
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collateral ligament jts.
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thickening of deep fascia on palm
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palmar aponeurosis
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Fibrosis and contracture of palmar aponeurosis which leads to flexion of digits at mcp jts. and ip jts.
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Dupuytren's contracture
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the muscles of ______ are the following:
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Thenar eminence
adbuctor pollicis brevis flexor pollicis brevis opponens pollicis adductor pollicis |
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Mucsles of________ are the following:
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hypothenar eminence
palmaris brevis abductor digiti minimi flexor digiti brevis opponens digiti minimi |
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Muscles of _______ are the following:
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central compartment
interossei lumbricals adductor pollicis tendons of FDS and FDP |
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FDP
FDS |
flexor digitorium superficialis
flexor digitorium profundus |
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ring and little finger affected by this
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Dupuytren"s contracture
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three grps of intrinsic muscles
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thenar eminence
hypothenar eminence central compartment |
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median nerve invert what muscles in thumb
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flexor
opponen short abductor |
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ulnar nerve invert what muscles of the thumb
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adductor
deep head of FPB(flexor pollicis brevis) |
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radial nerve invert what muscles of the thumb
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long extensor
long abductor |
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test radial nerve of forearm
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extension
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test median nerve of forearm
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opposition
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test ulnar nerve of forearm
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adduction
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located between metacarpals,
determined by function |
interossei
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three palmar adductors
four dorsal abductors |
interossei
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arise from tendons of FDP
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lumbricals
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travel on lateral side of four medial digits and attached into the extensor expansions
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lumbricals
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flex mcp jts and extend ip joint (only when the mcp jts are extended by the extensor digitorum
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lumbricals
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the ip jts are extended by extensor digitorum
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when mcp jts are flexed by lumbricals and interossei
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flexed by flexor digitorium profundus
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distal interphanlenges jts
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flexed only after middle phalanges flexed
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distal interphalanges
DIP |
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flexed by FDS
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proximal interphalanges
PIP |
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weak flexor of mcp jts only when PIP are fully flexed
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FDS
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flexed by lumbricals and interossei
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MCP jts
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abduct and adduct digits
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interossei
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flex MCP and extend the IP, only when the MCP are extended by extensor digitorum
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Lumbricals and interossei
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extend MCP and IP jts, not simultaneously but one at a time.
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extensor digitorium
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when MCP jts extended by this, the IP joints are extended by these.
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Extensor digitorium
lumbricals and interossei |
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hypertension of MCP
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claw hand
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if lumbricals and interossei paralyzed,the mCP jts extened and the IP jts flexed
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claw hand
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phalanges adducted in _______ and abducted in _______ because the MCP are arranged in an ________
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flexion
extension arc convex dorsal |
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supraclavicular nerves injuries involve
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trunks or roots of plexus
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infraclavicular injuries involve
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cords or peripheral nerves
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a fracture of ____ may injure this
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clavicle
brachial plexus |
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can be caught in callous formation
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supraclavicular nerve
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injured by cold or electric shock (superficial)
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long thoracic nerve
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may be entrapped in suprascapular notch
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suprascapular nerve
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manipulations to reduce a disloctaion of the humerus can injure
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axillary nerve
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injured in humeral neck fractures
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axillary nerve
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