Peripheral nerve anatomy Flashcards
what does C2 supply
back of scalp and laryngeal prominence
what does C3 supply
back of neck and jugular notch
what does C4 supply
shoulder tip/clavicle
what does C5 supply
badge patch
what does C6 supply
thumb
what does C7 supply
middle finger
what does C8 supply
little finger
what does T1 supply
medial forearm
what does T2 supply
medial arm and sternal angle
what does T4 supply
nipple
what does T8 supply
xiphoid process
what does T10 supply
umbilicus
what does T12 supply
pubic symphysis
what does L1 supply
groin
what does L2 supply
anterior thigh
what does L3 supply
knee
what does L4 supply
medial malleolus
what does L5 supply
dorsum of foot
what does S1 supply
heel of foot
what does S2 supply
posterior knee
what does S3 supply
buttock
what does S4 supply
perineum
what does S5 supply
perianal skin
sensory supply to neck
posterior - post rami C2-8 anterolateral - lesser occipital C2 greater auricular C2,3 Transverse cervical C2,3 Supraclavicular C3,4
peripheral cutaneous innervation to the trunk
posterior - post rami
upper anterolateral - intercostal nerves
lower anterolateral - subcostal T12
lower is iliohypogastric and ilioinguinal - divided ant ramus of L1
Spinal roots associated with supraclavicular nerves
C3/4
Spinal roots associated with axillary nerves
C5/6
Spinal roots associated with cutaneous branch of muculocutaneous
C5/6/7
Spinal roots associated with radial nerve
C5/6/7/8/T1
Spinal roots associated with ulnar nerve
C7/8/T1
Spinal roots associated with median nerve
C5/6/7/8/T1
Spinal roots associated with ilioinguinal nerve
L1
Spinal roots associated with genitofemoral nerve
L1/2
Spinal roots associated with lateral cutaneous nerve of thigh
L2/3
Spinal roots associated with posterior cutaneous nerve of thigh
S1/2/3
Spinal roots associated with femoral nerve
L2/3/4
Spinal roots associated with obturator nerve
L2/3/4
Spinal roots associated with saphenous nerve
L3/4
Spinal roots associated with sural nerve
S1/2
Spinal roots associated with superficial fibular nerve
L4/5/S1
Spinal roots associated with deep fibular nerve
L5
Spinal roots associated with tibial nerve
L4/5 S1/2/3
reflex testing of the ankle tests which spinal level
S1
reflex testing of the knee tests which spinal level
L4
reflex testing of spininator/brachioradialis tests which spinal level
C6
reflex testing of biceps tests which spinal level
C5 and partly C6
reflex testing of triceps tests which spinal level
C7
describe the mechanism of the patellar reflex
quads fibres/patellar ligament stretch AP inititaiton in femoral nerve conducted to dorsal corn of L4 axons pass to anterior horn to synapse on LMN to reach quads NMJ muscle contracts
myotomes of the shoulder
Abduction C5
adduction C7
myotomes of the elbow
flexion C5,6
extension C7
myotomes of the finger joints
flexion C8
extension C7
abduction T1
adduction T1
myotomes of the wrist
flexion C6, C7
extension C6, C7
myotomes of the hip
flexion L2,3
extension L5,S1
myotomes of the knee
flexion L5,S1
extension L3,4
myotomes of the ankle
dorsiflexionL4,5
plantarflexion S1,2
inversion L4
eversion L5,S1
motor innervation given by axillary nerve
deltoid
teres minor
motor innervation given by musculocutaneous nerve
biceps brachii, coracobrachialis
brachialis
motor innervation given by radial nerve
triceps brachioradialis supinator all carpus extensors, digits abductor pollicis longus
motor innervation given by ulnar nerve
carpi ulnaris, medial half of FPL, adductor pollicis, hypothenar, lumbricals 3,4 and all interossei
motor innervation given by median nerve
pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, lateral half of flexor digitorum profundus, FLP, thenars and lumbricals 1,2
motor innervation given by femoral nerve
quads femoris
sartorius
pectineus
motor innervation given by obturator nerve
medial compartment of thigh, adductors and gracilis
motor innervation given by common fib division sciatic
biceps femoris short head
motor innervation given by superficial division fibular
fib longus and brevis
motor innervation given by deep division fibular
tib anterior, EDL, EHL, fib tertius
EDB
EHB
motor innervation given by tibial division sciatic
semimembranosus, semiteendinosus, LH biceps femoris
gastrocnemius, soleus, plantatus, popliteus, tib posterior
intrinsic muscles foot and digit flexors