EnA 1 Midterm Dermatomes + Myotomes + DTRs + patho reflexes

C1 derm

none

C2 derm

post aspect of head above mastoid process

C3 derm

post aspect of neck

C4 derm

b/t clavicle + scapula @ AC joint

C5 derm

lateral arm, side delt

C6 derm

lat side of thumb

C7 derm

sides of middle finger/3rd digit

C8 derm

medial side of pinky

T1 derm

dist from olecranon on medial forearm

T2 derm

back of arm proximal to olecranon

T4 derm

just above nipple

T10 derm

at or above umbilicus

T12

just above inguinal line

T11

just below + to right of umbilicus on lateral side of right trunk

C1 myo

none or capital flexion

C2 myo

capital rotation

C3 myo

Cervical side bending

C4 myo

scapular elevation

how do you position your hands for C2+ C3 myo?

cup ears to resist rotation + side bending

C5 myo

deltoid, resist shoulder abd

C6 myo

biceps + wrist ext, resist wrist ext

C7 myo

triceps, wrist flexion, resist wrist flex or elbow ext

C8 myo

finger flexors, resist finger flex

T1 myo

interossei, resist finger abd

C5 dtr

biceps jerk

C6 dtr

brachioradialisc

C7 dtr

triceps jerk

babinski response

“plantar response” method: draw blunt instrument across sole of foot from heel to lat border across ball of foot

+: great toe ext with flexion of other toes

clonus

“wrist and ankle”

method: pt applies quick pressure to either palm of hand: into direction of wrist ext, or ball of foot: into DF direction

+: repeated, short wrist flexion/PF oscillation contractions

hoffman sign

method: PT flicks Pts middle finger downward while stab prox joints + 4th + 5th finger

+: thumb of same hand tested flexs + adds

+sign can indicate a UMN lesion + corticospinal tract motor pathway dysfunction

L1 derm

over greater trochanter

L2 derm

medial thigh

L3 derm

medial knee

L4 derm

medial malleolus

L5 + S1 derm

webbing b/t big toe + 2nd digit, lat side of foot

S2 derm

back of ankle

L2 myo

iliopsoas, resist hip flex

L3 myo

quads, resist knee ext

L4 myo

tib ant, resist ankle DF

L5 myo

EHL, resist great toe ext

S1 myo

peroneii, resist ankle eversion + PF

S2

gastrosoleus, resist PF

L4 dtr

patellar tendon knee jerk

L5 dtr

post tib