lower muscles orgin and insertion

Question 1

Gluteus maximus

Answer 1

Origin: iliac crest, posterior gluteal line
Insertion: gluteal tuberosity of the femur, iliotibial tract
Action: major hip extensor

Question 2

Gluteus medius

Answer 2

Origin: iliac crest,
Insertion: greater trochanter
Action: abduction at the hip

Question 3

Tensor fasciae latae

Answer 3

Origin: anterior superior iliac spine
Insertion: iliotibial tract
Action: flexion and medial rotation of hip

Question 4

Piriformis

Answer 4

Origin: anterior lateral border of the sacrum
Insertion: greater trochanter
Action: lateral rotation of hip

Question 5

Quadrates femoris

Answer 5

Origin: ischial tuberosity
Insertion: intertrochantric crest
Action: lateral rotation at hip

Question 6

Adductor longus

Answer 6

Origin: inferior ramus of the of the pubis
Insertion: linea asperia of femur

Question 7

Adductor magnus

Answer 7

Origin: ischial tuberosity
Insertion: linea aspera and adductor tubercle
Action: adduction and flexion of the hip

Question 8

Gracilis

Answer 8

Origin: inferior ramus of the pubis
Insertion: medial surface of the tibia
Action: adduction and medial rotation at the hip, flexion at the knee

Question 9

Iliacus

Answer 9

Origin: entire surface of the iliac fossa
Insertion: lesser trochanter
Action: flexion at the hip

Question 10

Psoas

Answer 10

Origin: T12 – L5 vertebrae
Insertion: lesser trochanter
Action: flexion at the hip

Question 11

biceps fumeris

Answer 11

Origin: ishcial tuberosity and linea aspera
Insertion: head of fibula and lateral condyle of tibia
Action: flexion at the knee, extension at the hip

Question 12

Semitendinosus

Answer 12

Origin: ischial tuberosity
Insertion: proximal medial surface of the tibia
Action: flexion at the knee, extension at the hip

Question 13

Semimembranosus

Answer 13

Origin: ischial tuberosity
Insertion: medial condyle of the tibia
Action: flexion at the knee, extension at the hip

Question 14

Sartorius

Answer 14

Origin: anterior superior iliac spine
Insertion: medial surface of the tibia
Action: flexion at the knee

Question 15

Rectus femoris

Answer 15

Origin: anterior inferior iliac spine
Insertion: tibial tuberosity via the patellar ligament
Action: extension at the knee and flexion of the hip

Question 16

Vastus intermedius

Answer 16

Origin: anterior and lateral surfaces of the femur
Insertion: tibial tuberosity via the patella ligament
Action: extension at the knee

Question 17

Vastus lateralis

Answer 17

Origin: linea aspera
Insertion: tibial tuberosity via the patellar ligament
Action: extension at the knee

Question 18

Vastus medias

Answer 18

Origin: linea aspera
Insertion: tibial tuberosity via the patella ligament
Action: extension at the knee

Question 19

Tibialis anterior

Answer 19

Origin: lateral condyle of the tibia
Insertion: 1st metatarsal and medial cuneiform
Action: dorsiflexion at the ankle

Question 20

Gastrocnemius

Answer 20

Origin: femoral condyles
Insertion: calcaneus via the calcaneal tendon
Action: plantar flexion at the ankle

Question 21

Fibularis longus

Answer 21

Origin: head and proximal shaft of the fibula
Insertion: medial cuneiform the first metatarsal
Action: plantar flexion and eversion at the ankle

Question 22

Soleus

Answer 22

Origin: head and proximal shaft of the fibula and tibia
Insertion: calcaneus via the calcaneal tendon
Action: plantar flexion at the ankle

Question 23

Fibularis brevis

Answer 23

Origin: midlateral fibular shaft
Insertion: 5th metatarsal
Action: plantar flexion and eversion (turning outward) at the ankle

Question 24

Tibialis posterior

Answer 24

Origin: posterior surface of the tibia and fibula
Insertion: tarsal and metatarsals bones
Action: plantar flexion and inversion