Thigh: Anterior Compartment

Question 1

Rectus Femoris

Quadriceps

Answer 1

Origin… Anterior inferior iliac spine and ilium superior to
acetabulum

Insertion… Base of patella and to tibial tuberosity via
patellar ligament

Innervation… Femoral nerve

Blood Supply… Profunda femoris, lateral circumflex
femoral arteries

Action… Extends leg at knee joint and flexes thigh at hip
joint

Question 2

Sartorius

Answer 2

Origin… Anterior superior iliac spine and superior part of notch below it

Insertion… Superior part of medial surface of tibia

Innervation… Femoral nerve

Blood Supply… Femoral artery

Action… Abducts, laterally rotates, flexes thigh, flexes knee
joint

Question 3

Vastus Intermedius

Quadriceps

Answer 3

Origin… Anterior and lateral surfaces of body of femur

Insertion… Base of patella and to tibial tuberosity via
patellar ligament

Innervation… Femoral nerve

Blood Supply… Lateral circumflex femoral and profunda
femoris arteries

Action… Extends leg at knee joint

Question 4

Vastus Lateralis

Quadriceps

Answer 4

Origin… Greater trochanter, lateral lip of gluteal tuberosity,
lateral lip of linea aspera

Insertion… Base of patella and to tibial tuberosity via
patellar ligament

Innervation… Femoral nerve

Blood Supply… Lateral circumflex femoral and profunda femoris arteries

Action… Extends leg at knee joint

Question 5

Vastus Medialis

Quadriceps

Answer 5

Origin… Intertrochanteric line, greater trochanter, lateral lip
of gluteal tuberosity, and lateral lip of linea aspera

Insertion… Base of patella and to tibial tuberosity via
patellar ligament

Innervation… Femoral nerve

Blood Supply… Femoral and profunda femoris arteries

Action… Extends leg at knee joint