Thigh Muscles - Ant.

Question 1

What do anterior compartment muscles do?

Answer 1

extend knee joint or flex hip

Question 2

Main function of Quad. Fem.

Answer 2

main extensor of knee joint

Question 3

Innervation Q.f.

Answer 3

femoral n. L2,L3,L4

Question 4

VM: origin, insertion and function

Answer 4

Origin: intertrochanteric line of femur
Insertion: quad. femoris tendon + med border of patella
Function: extend leg @ knee joint

Question 5

VL: origin, insertion and function

Answer 5

Origin: linea aspera + greeater trochanter
Insertion:quad. femoris tendon + lat border of patella
Function:extend leg @ knee joint

Question 6

VI: origin, insertion and function

Answer 6

Origin: ant surface of femoral shaft
Insertion:quad. femoris tendon + lat border patella + lat condyle tibia
Function:extend leg @ knee joint

Question 7

RF: origin, insertion and function

Answer 7

Origin: straight head - ASIS; reflected head - sup. margin of acetabulum
Insertion:quad. femoris tendon +
Function: flex thigh @ hip joint + extend leg @ knee joint

Question 8

Sartorius: origin, insertion, innervation and function

Answer 8

Origin: ASIS
Insertion: pes anserineus
Innervation: femoral n.
Function: flex thigh@ hip joint + flex leg @ knee

Question 9

Pectineus: origin, insertion, innervation and function

Answer 9

Origin: Pectineal line
Insertion: oblique line from base lesser trochanther to linea aspera
Innervation: Femoral n.
Function: adduct + flex thigh @ hip

Question 10

Iliopsoas: origin, insertion, innervation and function

Answer 10

Origin: iliacus - post abdominal wall; psoas major - post abodominal wall + lumbar transverse processes
Insertion: lesser trochanter
Innervation: iliacus - femoral n.; psoas major - ant. rami (L1, L2, L3)
Function: most powerful flexor of thigh