Anterior and Medial Compartments of the Thigh

Question 1

Pectineus
Blood Supply:
Innervation:
Action:

Answer 1

Pectineus
Blood Supply: Medial circumflex femoral artery
Innervation: Femoral nerve (L2-L4) and obturator nerve (L2-L4)
Action: Adducts and flexes thigh

Question 2

Sarterius
Blood Supply:
Innervation:
Action:

Answer 2

Sartarius
Blood Supply: Lateral circumflex femoral artery
Innervation: Femoral nerve (L2-L4)
Action: Flexes, abducts, and laterally rotates thigh

Question 3

Rectus femoris
Blood Supply:
Innervation:
Action:

Answer 3

Rectus femoris
Blood Supply: Lateral circumflex femoral artery
Innervation: Femoral nerve (L2-L4)
Action: Extend leg, assist in flexing thigh

Question 4

Vastus intermedius
Blood Supply:
Innervation:
Action:

Answer 4

Vastus intermedius
Blood Supply: Lateral circumflex femoral artery
Innervation: Femoral nerve (L2-L4)
Action: Extend Leg

Question 5

Vastus lateralis
Blood Supply:
Innervation:
Action:

Answer 5

Vastus lateralis
Blood Supply: Transverse circumflex femoral artery
Innervation: Femoral nerve (L2-L4)
Action: Extend leg

Question 6

Vastus intermedius
Blood supply:
Innervation:
Action:

Answer 6

Vastus intermedius
Blood supply: Lateral circumflex femoral artery
Innervation: Femoral nerve (L2-L4)
Action: Extend Leg

Question 7

Gracilis
Blood supply:
Innervation:
Action:

Answer 7

Gracilis
Blood supply: Obturator artery
Innervation: Obturator nerve (L2-L4)
Action: Adduct and flex thigh

Question 8

Adductor longus
Blood supply:
Innervation:
Action:

Answer 8

Adductor longus
Blood supply: Obturator and deep femoral arteries
Innervation: Obturator nerve (L2-L4)
Action: Adduct thigh

Question 9

Adductor brevis
Blood supply:
Innervation:
Action:

Answer 9

Adductor brevis
Blood supply: Obturator and deep femoral arteries
Innervation: Obturator nerve (L2-L4)
Action: Adducts thigh

Question 10

Obturator externus
Blood supply:
Innervation:
Action:

Answer 10

Obturator externus
Blood supply: Obturator and deep femoral arteries
Innervation: Obturator nerve (L2-L4)
Action: Laterally rotates thigh

Question 11

Adductor magnus (Adductor + Hamstring)
Blood supply:
Innervation:
Action:

Answer 11

Adductor magnus (Adductor + Hamstring)
Blood supply:
Innervation: Obturator nerve (adductor part) and tibial division of sciatic nerve (hamstring part)
Action: Adduct thigh (obturator part) and extend thigh (hamstring part)