- East Carolina University
- Health Professions
- Health Professions 8008
- Lumbosacral Plexus
Last Modified: 2011-06-18
*L1 is anterior division nerve
passes inferolaterally across iliacus muscle toward ASIS and enters thigh inferior to inguinal lig.
Supplies skin over lateral thigh and buttock
largest branch of lumbar plexus; posterior division
Supplies iliacus and psoas major muscles then enters anterior thigh in femoral triangle. Innervates anterior thigh muscles. intermediate and medial femoral cutaneous n supply skin.
meerges from medial border of psoas major to join sacral plexus
this plexus is on the posterior pelvic wall, anteiror to the piriformis and deep to the pelvic fasica and perineum
supplies muscles and skin of gluteal region, post thigh, leg, and foot
Largest nerve composed of tibial and common fibular which split at popliteal fossa
doesn't actually supply anything
passes through greater sciatic foramen and gives articular branch to hip joint. supplies muscles in name
passes through the greater sciatic foramen and supplies muscles in name
passes through the sciatic foramen w/ sciatic nerve and supplies inferior buttock, posterior scrotum/ labia majus and posterior thigh and knee
WILL BE TAGGED ON OUR BODY PROBABLY**
passes through greater sciatic foramen, crosses sacrospinous ligament and reenters pelvis through lesser sciatic foramen
innervates external anal sphincter and urogenital triangle muscles and skin there
Supplies short head of biceps femoris and articular branches to knee
passes over head of fibula, divides into superficial (lateral leg musc, skin on dorsum of foot) and deep (anterior leg musc and skin, dorsum of foot musc)
passes through greater sciatic foramen SUPERIOR to piriformis and supplies glut med, min, and TFL
articular branch to hip joint
pass through greater sciatic foramen superior to piriformis and supplies glut max
Passes through greater sciatic foramen to supply piriformis
forms anococcygeal nerve and supplies small area of skin over coccyx
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