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UE Nerves
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Muscles Innervated by Radial n. in axilla
Long head of triceps
Muscles innervated by radial n. in radial groove
lateral and medial heads of triceps
anconeus
brachioradialis
extensor carpi radialis longus
cutaneous branch for posterior brachium and antebrachium
Radial Tunnel
Between the end of ECRB and beginning of supinator
Site of radial n. division
Ends at the Arcade of Frohse (fibrous arch of supinator)
Superficial Radial n.
Deep to brachioradialis
Exits posterior to brachioradialis to innervate skin of lateral 2/3 of dorsum of hand, except fingertips
Deep Radial n.
Pierces Supinator - goes under Arcade of Frohse (fibrous tissue on superior edge of supinator)
Innervates ECRB
Posterior Interosseous n. (C7–C8)
Distal to supinator
Innervates:
ED
EDM
ECU
EPL
EPB
APL
Extensor indicis
Ligament of Struthers
Connects medial epicondyle to medial supracondylar ridge
Acts as retinaculum for median n.
Laceratus Fibrosus
= bicipital aponeurosis
median n. passes under
Anterior Interosseous n.
Deep to FDP
Innervates:
Lateral half of FDP
Pronator Quadratus
FPL
Arcade of Struthers
Medial head of triceps to meadial intermuscular septum
Cubital Tunnel
Behind medial epicondyle of humerus
Ulnar nerve passes through
Arcuate ligament (fibrous tendons of FCU) forms roof
MCL/UCL forms the floor
Ulnar nerve innervation in antebrachium
FCU
medial half of FDP
Author
Omidancer1
ID
146802
Card Set
UE Nerves
Description
UE Nerves
Updated
4/11/2012, 8:00:02 PM
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