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lumbosacral plexus - Coggle Diagram
lumbosacral plexus
obturator nerve
origin
lumbosacral plexus
L2-L4
muscles innervated
obturator externus
adductors
gracilis
movements
rotates thigh laterally
adducts thigh and flexes knee
cutaneous innervation
superior medial side of thigh
femoral nerve
origin
lumbosacral plexus
L2-L4
muscles innervated
psoas major
iliacus
pectineus
sartorius
quadriceps
movements
flexes hip
extends knee
flexes knee
cutaneous innervation
ant. and lat. branches supply the anterior and lateral thigh
saphenous branch supplies the medial leg and foot
tibial nerve
origin
lumbosacral plexus
L4-S3
muscles innervated
biceps femoris (long head)
semitendinosus
semimebranosus
adductor magnus (hamstring part)
plantaris
gastrocnemius
soleus
tibialis posterior
popliteus
flexor digitorum longus
flexor hallucis longus
movements
extends hip
flexes knee
adducts thigh
plantar flexes foot
flexes toes
cutaneous innervation
NONE
medial and lateral plantar nerves
origin
tibial nerve
muscles innervated
plantar muscles of foot
movements
flex and adduct toes
cutaneous innervation
sole of foot
common fibular (peroneal) nerve
origin
lumbosacral plexus
L4-S2
muscles innervated
biceps femoris (short head)
movements
extends hip
flexes knee
cutaneous innervation
lateral surface of knee
deep fibular (peroneal) nerve
origin
common fibular nerve
muscles innervated
tibialis anterior
fibularis tertius
toe extensors
movements
dorsiflexion
extends toe
cutaneous innervation
great and second toes
superficial fibular nerve
origin
common fibular nerve
muscles innervated
fibularis longus
fibularis brevis
movements
plantar flexion
evertion
cutaneous innervation
dorsal ant. third of leg and dorsum of foot
sural nerve
origin
tibial nerve
muscles innervated/movements
NONE
cutaneous innervation
lat. and post. 1/3 of leg
lateral side of foot