| Nerve Root |
Dermatome |
Myotome |
Reflex |
| L1 |
upper anterior thigh |
hip flexion |
NONE |
| L2 |
middle anterior thigh (hip flexors) |
hip flexion |
NONE |
| L3 |
lower anterior thigh (hip adductors) |
knee extension |
NONE |
| L4 |
medial lower leg |
ankle INV/DF (tibialis anterior) |
patellar tendon |
| L5 |
lateral lower leg, dorsum of foot |
great toe extension (interossei) |
NONE |
| S1 |
lower leg (around lateral malleolus) and 5th MET |
ankle EV/PF (peroneals) |
Achilles tendon |
| S2 |
middle posterior thigh (popliteal fossa) |
ABD/ADD of toes (intrinsics) |
NONE |
