The femoral triangle (dave's notes)

Question 1

What are the borders of the femoral triangle?

Answer 1

The femoral triangle is a triangle that lies between the inguinal ligament, the medial border of sartorius and the medial border of adductor lungs, resting a gutter shaped floor.

Question 2

What lies in the gutter shaped floor of the femoral triangle?

Answer 2

The femoral vessels and nerves

Question 3

What are the muscles found in the floor of the femoral triangle?

Answer 3

Iliacus, psoas, pectineus and adductor brevis.

Question 4

What is the origin and insertion of sartorius

Answer 4

Origin: Immediately below the ASIS
Insertion: the upper medial surface of the shaft of the tibia

Question 5

What is the origin and insertion of iliacus

Answer 5

Origin: the iliac fossa within the abdomen
Insertion: The lowermost surface of the lesser trochanter of the femur

Question 6

What is the origin and insertion of psoas major

Answer 6

Origin: The transverse process of L1-5, bodies of T12-L5 and intervertebral discs below body of T12-L4
Insertion: The middle surface of the lesser trochanter of the femur

Question 7

What is the origin and insertion of pectineus

Answer 7

Origin: Pectineal line of the pubis and narrow area of suprapubic ramus below it.
Insertion: A vertical line between the spiral line and gluteal crest below the lesser trochanter of the femur

Question 8

What is the action and nerve supply of sartorius

Answer 8

Flexes, abducts, and laterally rotates the thigh at the hip. Flexes, medially rotates leg at the knee.
Nerve is the anterior division of the femoral nerve.

Question 9

What is the action and nerve supply of iliacus

Answer 9

Flexes at the hip

Femoral nerve in the abdomen

Question 10

What is the action and nerve supply of psoas major

Answer 10

Flexes the hip

Anterior primary rami of L1-L2

Question 11

What is the action and nerve supply of pectineus

Answer 11

Anterior division of femoral nerve