Posterior muscles of the leg

Question 1

Function of Gluteal muscles

Answer 1

extension, abduction and rotation of the hip joint

Question 2

Gluteal muscles with Origin and insertion

Answer 2

Gluteus maximus- O = gluteal surface of ilium; I = iliotibial tract
Gluteus medius- O = gluteal surface of ilium; I = greater trochanter
Gluteus minimus- O = gluteal surface of ilium; I = greater trochanter

Question 3

Innervation of gluteal muscles

Answer 3

superior and inferior gluteal nerves

Question 4

Function of hamstrings

Answer 4

flexion/extension of the knee

Question 5

Hamstring muscles with origin and insertion

Answer 5

Biceps femoris- O = long head  ischial tuberosity; short head  linea aspera; I = head of the fibula
Semitendinosus- O = ischial tuberosity; I = anteromedial aspect of tibia
Semimembranosus- O = ischial tuberosity; I = medial condyle of tibia

Question 6

Innervation of Hamstrings

Answer 6

Sciatic nerve

Question 7

Function of Gastrocnemius

Answer 7

flexion of the knee and plantar flexion

Question 8

Origin and insertion of the gastrocnemius

Answer 8

Origin- lateral head: lateral condyle of femur; medial head = medial condyle of femur
Insertion- calcaneal tendon (Achilles tendon) into calcaneus