C2 dermatome
Posterior half of the skull
C3
High turtleneck shirt
C4
low collar shirt
T4
Nipple
T7
xiphoid process
T10
belly button
Important for early appendicitis pain referral.
L1
at inguinal ligament
L4
includes the knee caps
S2,3,4
erection and sensation of penile and anal zones
C5,C6 reflex
Biceps
C7, C8 reflex
triceps
L3, L4 reflex
Patella
S1,S2 reflex
achilles
L1,L2 reflex
Testicals move (cremaster reflex)
S3,S4 reflex
Anal wink