musculoskeletal topics Flashcards
brachial plexus contains
ventral rami (mixed)
upper brachial plexus injury
Erb’s palsy
lower brachial plexus injury
Klumpke’s palsy
axillary nerve innervates
deltoid
teres minor
musculocutaneous nerve innervates
biceps
brachialis
coracobrachialis
radial nerve innervates
triceps
extensors of forearm and hand
median nerve innervates
anterior (flexor) compartment of forearm
thenar
ulnar nerve innervates
hypothenar muscles
deep muscles of hand
worst type of injury
avulsion injury
nerve root torn from spinal cord
avulsion injury
complete or near complete tear of the spinal nerve root beyond the spinal nerve rootlets
rupture injury
partial tear of individual nerves/fasiculi due to stretch
stretch injury
is the arm forcefully adducted or abducted in Erb’s palsy
the arm is forcefully adducted in Erb’s palsy
is the arm forcefully adducted or abducted in Klumpke’s palsy
the arm is forcefully abducted in Klumpke’s palsy
what nerves are damaged in Erb’s palsy
C5
C6
what nerves are damaged in Klumpke’s palsy
C8
T1
what nerve is damaged in mid shaft humeral fracture
radial nerve
radial nerve palsy is also called
Saturday night palsy
mid shaft humeral fracture can cause _____ due to extensor weakness
wrist drop
what nerve is damaged in humeral neck fracture
axillary nerve
axillary nerve injury can cause weakness/paralysis of what muscle
deltoid
2 locations for ulnar nerve injury
elbow
hook of hamate
injuries to what 2 nerves can cause claw hand
ulnar nerve
median nerve
what is the sign we see when trying to make a fist with median nerve injury
hand of benediction
