Nerves Flashcards
superior gluteal
L4-S1
above piriformis
gluteus medius/minimus/TFL
Trendelenburg sign with damage
inferior gluteal
L5-S2
below piriformis
gluteus maximus
nerve to piriformis
S1-S2
only nerve that doesn’t leave the pelvis
sciatic
common peroneal and tibial nerves
below piriformis
piriformis syndrome
supplies posterior thigh/lower leg
posterior femoral cutaneous
S1-S3
branches to perineal region
nerve to quadratus femoris
supplies quadratus femoris and inferior gemellus
nerve to obturator internus
supplies obturator internus and superior gemellus
pudendal
branches into inferior rectal and perineal
clunial nerves
major cutaneous innervation to the gluteal region
superior, medial are dorsal primary rami
inferior is ventral primary ramus from sacral plexus
femoral
supplies anterior compartment of thigh (quads, sartorius, articularis genu, iliopsoas, TFL, pectineus)
obturator
supplies medial compartment of thigh (pectineus, adductors, gracilis, obturator externus)
tibial
supplies posterior compartment of thigh (hamstrings), posterior compartment of leg (gastroc, soleus, plantaris, popliteus, flexor digitorum longus, flexor hallucis longus, tibialis posterior)
common peroneal
supplies short head of biceps femoris
saphenous
L3-L4
cutaneous to medial side of leg from knee to malleolus
surals
cutaneous
medial, lateral, communicating