L3 - Lower Muscles (Innervations, Origins, and Insertions) Flashcards
What structure branches out to innervate the lower limb?
The lumbosacral plexus
What nerve innervates the anterior thigh?
The femoral nerve
What nerve innervates the posterior thigh?
The sciatic nerve
What nerve innervates the posterior lower leg?
The tibial nerve
What nerve innervates the lateral and anterior lower leg?
The common peroneal (fibular) nerve
O&I: Rectus abdominis
O: pubic crest
I: Costal cartilage T5-T7, xiphoid process
O&I: Gluteus medius
O: gluteal surface
I: greater trochanter
O&I: Sartorius
O: anterior superior iliac spine
I: pes anserinus
O&I: Gracilis
O: ischiopubic ramus
I: pes anserinus
O&I: Semitendinosus
O: ischial tuberosity
I: pes anserinus
O&I: Gastrocnemius
O: lateral and medial condyles of the femur
I: calcaneal tendon
O&I: Flexor hallucis longus
O: posterior surface of fibula
I: 1st digit
O&I: Tibialis anterior
O: lateral surface of tibia
I: medial cuneiform, 1st metatarsal
O&I: Fibularis longus
O: lateral surface of fibula
I: medial cuneiform, 1st metatarsal
