Muscle Attachments and Insertions-Lab Practical 3

Question 1

Gluteus maximus origin

Answer 1

Iliac crest, posterior gluteal line

Question 2

Gluteus maximus insertion

Answer 2

Gluteal tuberosity of the femur, iliotibial tract

Question 3

Gluteus maximus action

Answer 3

Major hip extensor

Question 4

Gluteus medius origin

Answer 4

Iliac crest

Question 5

Gluteus medius insertion

Answer 5

Greater trochanter

Question 6

Gluteus medius action

Answer 6

Abduction at the hip

Question 7

Tensor fasciae latae origin

Answer 7

Anterior superior iliac spine

Question 8

Tensor fasciae latae insertion

Answer 8

Iliotibial tract

Question 9

Tensor fasciae latae action

Answer 9

1. Flexion

2. Medial rotation of hip

Question 10

Obturators (internus and externus) origin

Answer 10

Obturator foramen (both)

Question 11

Obturators (internus and externus) insertion

Answer 11

Intertrochanteric fossa (externus)
Greater trochanter (internus

Question 12

Obturators (internus and externus) action

Answer 12

Lateral rotation of hip

Question 13

Piriformis origin

Answer 13

Anterior lateral border of the sacrum

Question 14

Piriformis insertion

Answer 14

Greater trochanter

Question 15

Piriformis action

Answer 15

Lateral rotation of hip

Question 16

Quadrates femoris origin

Answer 16

Ischial tuberosity

Question 17

Quadrates femoris insertion

Answer 17

Intertrochantric crest

Question 18

Quadrates femoris action

Answer 18

Lateral rotation at hip

Question 19

Adductor longus origin

Answer 19

Inferior ramus of the of the pubis

Question 20

Adductor longus insertion

Answer 20

Linea asperia of femur

Question 21

Adductor longus action

Answer 21

Adduction and flexion of hip

Question 22

Adductor magnus origin

Answer 22

Ischial tuberosity

Question 23

Adductor magnus insertion

Answer 23

Linea aspera and adductor tubercle

Question 24

Adductor magnus action

Answer 24

Adduction and flexion of the hip

Question 25

Gracilis origin

Answer 25

Inferior ramus of the pubis

Question 26

Gracilis insertion

Answer 26

Medial surface of the tibia

Question 27

Gracilis action

Answer 27

1. Adduction and medial rotation at the hip | 2. Flexion at the knee

Question 28

Iliacus origin

Answer 28

Entire surface of the iliac fossa

Question 29

Iliacus insertion

Answer 29

Lesser trochanter

Question 30

Iliacus action

Answer 30

Flexion at the hip

Question 31

Psoas origin

Answer 31

T12 – L5 vertebrae

Question 32

Psoas insertion

Answer 32

Lesser trochanter

Question 33

Psoas action

Answer 33

Flexion at the hip

Question 34

Biceps femoris origin

Answer 34

Ishcial tuberosity and linea aspera

Question 35

Biceps femoris insertion

Answer 35

Head of fibula and lateral condyle of tibia

Question 36

Biceps femoris action

Answer 36

1. Flexion at the knee | 2. Extension at the hip

Question 37

Semitendinosus origin

Answer 37

Ischial tuberosity

Question 38

Semitendinosus insertion

Answer 38

Proximal medial surface of the tibia

Question 39

Semitendinosus action

Answer 39

1. Flexion at the knee | 2. Extension at the hip

Question 40

Semimembranosus origin

Answer 40

Ischial tuberosity

Question 41

Semimembranosus insertion

Answer 41

Medial condyle of the tibia

Question 42

Semimembranosus action

Answer 42

1. Flexion at the knee | 2. Extension at the hip

Question 43

Sartorius origin

Answer 43

Anterior superior iliac spine

Question 44

Sartorius insertion

Answer 44

Medial surface of the tibia

Question 45

Sartorius action

Answer 45

Flexion at the knee

Question 46

Rectus femoris origin

Answer 46

Anterior inferior iliac spine

Question 47

Rectus femoris insertion

Answer 47

Tibial tuberosity via the patellar ligament

Question 48

Rectus femoris action

Answer 48

1. Extension at the knee | 2. Flexion of the hip

Question 49

Vastus intermedius origin

Answer 49

Anterior and lateral surfaces of the femur

Question 50

Vastus intermedius insertion

Answer 50

Tibial tuberosity via the patella ligament

Question 51

Vastus intermedius action

Answer 51

Extension at the knee

Question 52

Vastus lateralis origin

Answer 52

Linea aspera

Question 53

Vastus lateralis insertion

Answer 53

Tibial tuberosity via the patellar ligament

Question 54

Vastus lateralis action

Answer 54

Extension at the knee

Question 55

Vastus medialis origin

Answer 55

Linea aspera

Question 56

Vastus medialis insertion

Answer 56

Tibial tuberosity via the patella ligament

Question 57

Vastus medialis action

Answer 57

Extension at the knee

Question 58

Tibialis anterior origin

Answer 58

Lateral condyle of the tibia

Question 59

Tibialis anterior insertion

Answer 59

1st metatarsal and medial cuneiform

Question 60

Tibialis anterior actions

Answer 60

Dorsiflexion at the ankle

Question 61

Gastrocnemius origin

Answer 61

Femoral condyles

Question 62

Gastrocnemius insertion

Answer 62

Calcaneus via the calcaneal tendon

Question 63

Gastrocnemius action

Answer 63

Plantar flexion at the ankle

Question 64

Fibularis longus origin

Answer 64

Head and proximal shaft of the fibula

Question 65

Fibularis longus insertion

Answer 65

Medial cuneiform the first metatarsal

Question 66

Fibularis longus action

Answer 66

Plantar flexion and eversion at the ankle

Question 67

Soleus origin

Answer 67

Head and proximal shaft of the fibula and tibia

Question 68

Soleus insertion

Answer 68

Calcaneus via the calcaneal tendon

Question 69

Soleus action

Answer 69

Plantar flexion at the ankle

Question 70

Fibularis brevis origin

Answer 70

Midlateral fibular shaft

Question 71

Fibularis brevis insertion

Answer 71

5th metatarsal

Question 72

Fibularis brevis action

Answer 72

Plantar flexion and eversion (turning outward) at the ankle

Question 73

Tibialis posterior origin

Answer 73

Posterior surface of the tibia and fibula

Question 74

Tibialis posterior insertion

Answer 74

Tarsal and metatarsals bones

Question 75

Tibialis posterior action

Answer 75

Plantar flexion and inversion