The Femoral Triangle

Question 1

What are the boundaries of the femoral triangle?

Answer 1

• Laterally: The medial border of sartorius.
• Medially: The medial border of adductor longus.
• Superiorly: The inguinal ligament.

Question 2

Which structures form the floor of the femoral triangle?

Answer 2

1 - Iliacus.

2 - Psoas major.

3 - Pectineus.

4 - Adductor longus.

Question 3

Which structures form the roof of the femoral triangle?

Answer 3

Skin, superficial fascia and deep fascia.

Question 4

List the structures that are contained within the femoral triangle.

Answer 4

NAVI (lateral to medial):

1 - Femoral nerve.

2 - Femoral artery.

3 - Femoral vein.

4 - Deep inguinal lymph nodes.

Question 5

What is the femoral sheath?

What does it contain, and in which compartments of the sheath do each of these structures lie?

Answer 5

A funnel shaped sleeve of fascia in the femoral triangle enclosing:

• The upper portion of the femoral artery (lateral compartment).
• The upper portion of femoral vein (intermediate compartment).
• The upper portion of the deep inguinal lymph nodes (medial compartment).

Question 6

Where in the femoral triangle does the femoral nerve lie?

Answer 6

Within the groove between iliacus and psoas major.

Question 7

Which nerves exist in the femoral triangle other than the femoral nerve?

Answer 7

1 - The lateral cutaneous nerve of the thigh.

2 - The femoral branch of the genitofemoral nerve.

Question 8

Where in the femoral triangle does the lateral cutaneous nerve of the thigh lie?

Answer 8

It crosses the lateral corner of the triangle.

Question 9

Where in the femoral triangle does the femoral branch of the genitofemoral nerve lie?

Answer 9

It runs in the lateral compartment of the femoral sheath.

Question 10

What does the lateral cutaneous nerve of the thigh supply?

Answer 10

The skin on the lateral part of the thigh.

Question 11

What does the femoral branch of the genitofemoral nerve supply?

Answer 11

The majority of the skin over the femoral triangle.

Question 12

What does the femoral nerve supply?

Answer 12

The anterior compartment of the thigh.

Question 13

What are the spinal nerve roots of the femoral nerve?

Answer 13

L2-4.

Question 14

What are the spinal nerve roots of the lateral cutaneous nerve of the thigh?

Answer 14

L2-3.

Question 15

What are the spinal nerve roots of the femoral branch of the genitofemoral nerve?

Answer 15

L1-2.