Muscles 2

Question 0

Iliacus

Answer 0

O: iliac fossa of coxal bone and sacrum
I: with the tendon of psoas major into the lesser trochanter of femur
A: flexes thigh at the hip joint, rotates thigh laterally, flexes trunk on the hip joint

Question 1

Psoas major

Answer 1

O: transverse processes and bodies of lumbar vertebrae
I: with tendon of iliacus into the lesser trochanter of femur
A: flexes thigh at the hip joint, rotates thigh laterally, flexes trunk on the hip as in sitting

Question 2

Gluteus Maximus

Answer 2

O: iliac crest of coxal bone, sacrum and coccyx
I: upper 1/4 of the gluteal tuberosity of the femur and the lower 3/4 of the iliotibial tract
A: extends and rotates thigh laterally at the hip joint

Question 3

Gluteus medius

Answer 3

O: ilium of coxal bone
I: greater trochanter of the femur
A: abducts and rotates thigh medially at the hip joint

Question 4

Tensor fasciae latae

Answer 4

O: iliac crest of coxal bone
I: iliotibial tract
A: flexes and abducts thigh at the hip joint

Question 5

Adductor longus

Answer 5

O: pubic crest of coxal bone and pubic symphysis
I: Linea aspera of femur
A: adducts and flexes thigh at the hip joint: rotates the thigh ( out when foot up and in when foot down)

Question 6

Adductor Magnus

Answer 6

O: ischiopubic ramus and Ischial tuberosity of coxal bone
I: Linea aspera and adductor tubercle of femur
A: adducts thigh at the hip joint. Rotates thigh ( out when the foot is on the ground and in when it is lifted) at the hip joint.
Anterior part flexes thigh at the hip joint
Posterior part extends thigh

Question 7

Gracilis

Answer 7

O: pubic body and inferior pubic ramus of coxal bone
I: superior medial surface of shaft of tibia
A: adducts and medially rotates the thigh at the hip, flexes leg at knee joint

Question 8

Rectus femoris

Answer 8

O: anterior inferior iliac spine of the coxal bone
I: upper boarder of patella, patellar ligament, tibial tuberosity of tibia.
A: flexes thigh at the hip joint extends leg at the knee joint

Question 9

Vastus lateralis

Answer 9

O: greater trochanter and Linea aspera of the femur.
I: patella, patellar ligament and tibial tuberosity of the tibia
A: extends leg at the knee joint

Question 10

Vastus medialis

Answer 10

O: Linea aspera
I: patella, patellar ligament and tibial tuberosity
A: extend leg at the knee joint

Question 11

Vastus intermedius

Answer 11

O: anterior and lateral surface of shaft of femur
I: patella, patellar ligament and tibial tuberosity
A: extends leg at knee joint

Question 12

Sartorius ( tailors muscle)

Answer 12

O: Anterior superior iliac spine of coxal bone
I: superior medial surface of shaft of tibia
A: flexes leg at knee joint;flexes laterally rotates and abducts thigh at hip joint

Question 13

Biceps femoris

Answer 13

O: long head; Ischial tuberosity of coxal bone
Short head; Linea aspera of femur
I: head of fibula and lateral condyle of tibia
A:flexes leg at the knee joint and extends thigh at hip joint

Question 14

Semitendinous

Answer 14

O: Ischial tuberosity of coxal bone
I: superior medial surface of shaft of tibia
A: flexes leg at knee joint and extends thigh at hip joint

Question 15

Semimembranosus

Answer 15

O: Ischial tuberosity of coxal bone
I: medial condyle of tibia
A: flexes leg at knee joint and extends thigh at hip joint

Question 16

Tibialis anterior

Answer 16

O: lateral condyle and superior 2/3 of the shaft of the tibia
I: 1st cuneiform and 1st metatarsal
A: dorsiflexes foot and inverts foot at intertarsal joint

Question 17

Extensor hallucis longus

Answer 17

O: mid-anterior surface of fibula and interosseous membrane
I: distal phalanx of great toe
A: extends the great toe and dorsiflexes the foot at ankle joint

Question 18

Extensor digitorum longus

Answer 18

O: lateral condyle of tibia, anterior surface of fibula and interosseous membrane
I: branches to insert onto middle and distal phalanges of toes 2-5
A: extends toes 2-5 and dorsiflexes foot at ankle

Question 19

Fibularis longus

Answer 19

O: head and lateral surface of shaft of fibula and lateral condyle of tibia
I: 1st cuneiform and 1st metatarsal.
A: plantar flexes foot at ankle joint and everts for at intertarsal joints

Question 20

Fibularis brevis

Answer 20

O: distal lateral surface of shaft of fibula
I: base of 5th metatarsal
A: plantar flexes foot at ankle joint and everts foot at intertarsal joint

Question 21

Gastrocnemius

Answer 21

O: lateral and medial condyles of femur and articulate surface of the knee
I: calcaneus via the calcaneal tendon
A: plantar flexes foot at ankle joint and flexes leg at the knee joint

Question 22

Soleus

Answer 22

O: head of fibula and posters-medial boarder of shaft of tibia
I: calcaneus via the calcaneal tendon
A: plantar flexes foot at ankle joint

Question 23

Tibialis posterior

Answer 23

O: tibia, fibula and interosseous membrane
I: tendon to navicular, cuboid all 3 cuneiforms and 2,3&4th metatarsals
A: plantar flexes foot at ankle joint and inverts foot at intertarsal joints

Question 24

Flexor digitorum Longus

Answer 24

O: posterior surface of shaft of tibia
I: tendon to distal phalanges of 2-5
A: flexes toes 2-5 and plantar flexes the foot at ankle joint

Question 25

Flexor hallucis longus

Answer 25

O:posterior inferior 2/3 shaft of fibula
I: tendon to distal phalanx of great toe
A: flexes great toe and plantar flexes foot at ankle joint