ANATOMY 2300.03 Lecture 10: AnatomyLecture10

• School: Ohio State University
• Department: Anatomy
• Course: ANATOMY 2300.03
• Professor: Jennifer Burgoon

Document Summary

The lumbar plexus provides innervation for the muscles of the anterior and medial thigh. Femoral nerve: largest nerve of lumbar plexus, enters thigh by passing under the inguinal ligament (i. e. ligament that runs from asis topubic tubercle), innervates the iliacus, pectineus, and the anterior femoral muscles. Obturator nerve: passes through the obturator foramen to enter medial thigh, innervates most medial femoral muscles. Superior gluteal nerve: exits pelvis through the greater sciatic foramen superior to piriformis muscle, innervates gluteus medius, gluteus minimus, and tensor fasciae latae muscles. Inferior gluteal nerve: exits pelvis through the greater sciatic foramen inferior to piriformis muscle, innervates the gluteus maximus muscle. The sacral plexus provides innervation for the muscles of the posterior thigh and all of the leg and foot. Sciatic nerve: largest nerve in body, exits pelvis through the greater sciatic foramen inferior to piriformis muscle, 2/3"s of the way down thigh it divides into tibial nerve and common fibular (peroneal) nerves.