Lecture 19, Muscles of The Anterior Thigh

Question 1

Pectineus

Answer 1

adducts and flexes hip joint; assists with medial rotation of hip joint (femoral nerve - L2, L3) may also recieve a branch from obturator nerve

Question 2

Sartorius

Answer 2

flexes, abducts and laterally rotates hip joint; flexes knee joint (femoral nerve - L2-L3)

Question 3

Ilioposoas (psoas major/iliacus)

Answer 3

Acting conjointly in flexing hip joint and in stabilizing this joint; psoas major is also a postural muscle that helps control deviation of the trunk and is active during standing (psoas major - anterior rami of lumbar nerves (L1, L2, L3) ilacus - femoral nerve (L2,L3))

Question 4

Rectus femoris

Answer 4

extend knee joint; the rectus femoris is also stabilzing the hip joint; helps the ilipsoas flex the hip joint (femoral nerve)