Lecture 7 - Thigh and Femoral Triangle

Question 1

What are the borders and contents of the femoral triangle?

L7 S5 LO1

Answer 1

Borders:

• medial border of sartorius
• medial border of adductor longus muscle
• inguinal ligament
• floor (iliopsoas, pectineus, adductor longus)

Contents (lateral to medial):
-femoral nerve
-femoral artery
-femoral vein
-lymphatics
NAVL

Question 2

What are the borders of the adductor canal and what are its contents?

L7 S8 LO1

Answer 2

Borders:

• vastus medialis (lateral)
• adductor longus and magnus (medial)
• sartorius (anteromedial)

Contents:

• saphenous nerve
• nerve to vastus medialis
• terminal obturator nerve
• terminal femoral artery and vein
• deep lymph vessels

Question 3

What are the muscles in the anterior component of the thigh?

L7 S13

Answer 3

Iliopsoas
Sartorius
Pectineus
Quadriceps
-rectus femoris
-vastus lateralis
-vastus intermedius
-vastus medialis

Question 4

What is the common innervation and blood supply of the muscles in the anterior compartment of the thigh?

L7 S30

Answer 4

Innervation:
-femoral nerve (L2-4)

Blood supply
-femoral artery

Question 5

What are the muscles of the medial compartment of the thigh?

L7 S33

Answer 5

• gracilis
• adductor longus
• adductor brevis
• adductor magnus
• obturator externus

Question 6

What is the common blood supply, innervation and action of the muscles of the inner thigh?

L7 S36

Answer 6

Blood supply:
-obturator artery

Innervation:

• obturator nerve
• tibial nerve

Action:
-adduction

Question 7

What are the muscles of the posterior compartment of the thigh?

L7 S56

Answer 7

Collectively known as the hamstring muscles

Biceps femoris (long and short head)
Semimembranosus
Semitendinosus

Question 8

What is the common innervation, blood supply, and action of the muscles of the posterior thigh?

L7 S51

Answer 8

Innervation:

• common perineal nerve
• tibial nerve

Blood supply:
-perforating arteries of profunda femoris

Action:

• hip extension
• knee flexion