Dermatomes and Myotomes

Question 1

Myotomes

Answer 1

Start from C3-C4 for upper, and L3 for lower!
(A great way to remember is it coincides with a top down approach while simultaneously naming different parts of the body)
* Upper body- Bicep flexion, the triceps extension, remember alphabetical order for T1 and T2 Dab and PAD respectively
* Lower body- start at L2 but in the form of a kick and ending with the toe up

**Myotomes **
C1/C2 - Neck flexion/extension
C3=scalene – side/lateral flexion of neck
C4=traps (shoulder elevation)
C5=deltoids
C6=biceps
C7=triceps
C8=thumb extensors
T1=DAB
T2=PAD
L2=iliopsoas - hip flexion
L3=quads (knee extension in prone)
L4= tibialis anterior (dorsiflexion and inversion)
L5= extensor hallucis longus (dorsiflexion of big toe)
S1=gastrocnemius = plantar flexion in standing
S2= hamstring knee flexion

Question 2

Dermatomes

Answer 2

T4 is at the nipple line
T10 is at the belly button
Try doing it in anatomical position with arms at chest level