1. Spine Labeling

3. Levels of Dermatomes C5 – clavicles
T10 – level of umbilicus
T12 – inguinal or groin region
L1, 2, 3, & 4 – anterior & medial surfaces of inferior leg
L4, 5, & S1 – foot
L4 – medial side of great toe
S1, 2, & L5 – Posterior and lateral surfaces of inferor leg.
S1 – lateral margin of foot & little toe
S2, 3, & 4 - perineum
C5 – clavicles
C5, 6, & 7 – lateral parts of superior arm.
C8 & T1 – medial sides of superior arm.
C6 – thumb
C6, 7, & 8 – hand
C8 – ring & little finger
T4 – level of nipples

4. Myotomes
Upper
Lower
C1: none C2: neck flexion C3: neck lateral flexion and extension C4: shoulder shrug C5: Shoulder abduction C6: Elbow flxn/wrist ext C7: elbow ext/wrist flxn C8: ulnar deviation/thumb ext/finger flxn(thumbs up) T1: finger intrinsics (abd, add, opposition)
L1: none L2: hip flexion L3: knee extension L4: ankle dorsiflexion L5: Hallux extension S1: Plantar flexion, eversion, knee flexion, hip extension (gastrocs and hammy’s) S2: Plantar flexion, knee flexion, hip extension