anterior thigh compartment

Question 1

What is the origin, insertion, innervation and function of sartorius

Answer 1

i. Origin: ASIS (Anterior superior iliac spine)
ii. Insert: medial aspect of tibia
iii. Nerve: femoral nerve
iv. Action: flexion and lateral rotation at hip; flexion at knee

Question 2

What is the origin, insertion, innervation and function of Rectus Femoris

Answer 2

i. Origin: Anterior inferior iliac spine (AIIS)
ii. Insert: tibial tuberosity via quad tendon
iii. Nerve: femoral nerve
iv. Action: flex at hip, extend at knee

Question 3

What is the origin, insertion, innervation, and function Vastus Medialis/Lateralis/Intermedius

Answer 3

i. Origin: shaft of femur
ii. Insert: tibial tuberosity via quad tendon
iii. Nerve: femoral nerve
iv. Action: extends at knee