Muscles of the Hip and Thigh

Question 1

Origin, Insertion, and Action for iliopsoas

Answer 1

Origin: T12-L5, sacrum, iliac crest, iliac fossa
Insertion: Lesser trochanter of femur
Action: Flexes thigh and lumbar vertebrae

Question 2

Origin, Insertion, and Action for Adductor longus

Answer 2

Origin: Pubis
Inserstion: Linea aspera at middle portion of femur
Action: Adducts, flexes, and laterally rotates thigh

Question 3

Origin, Insertion, and Action for Adductor magnus

Answer 3

Origin: Pubis, ischium
Insertion: Gluteal tuberosity, linea aspera, adductor tubercle of distal femur
Action: Adducts, flexes, extends, and laterally rotates thigh

Question 4

Origin, Insertion, and Action for Rectus femoris

Answer 4

Origin: Anterior inferior iliac spine, margin of acetabulum
Insertion: Tibial tuberosity by patellar tendon
Action: Flexes thigh, extends leg

Question 5

Origin, Insertion, and Action for Gluteus maximus

Answer 5

Origin: Outer iliac blade, iliac crest, sacrum, coccyx
Insertion: Gluteal tuberosity of femur, iliotibial band of fasciae latae
Action: Extends and laterally rotates thigh, braces knee

Question 6

Origin, Insertion, and Action for Biceps femoris

Answer 6

Origin: Ischial tuberosity, linea aspera
Insertion: Head of fibula, lateral condyle of tibia
Action: Extends thigh, flexes leg

Question 7

Name an action for the Sartorius

Answer 7

Flexes and laterally rotates thigh, flexes leg

Question 8

Name an action for the Gracilis

Answer 8

Adducts thigh, flexes leg

Question 9

Name an action for the Pectineus

Answer 9

Adducts and flexes thigh

Question 10

Name an action for the Adductor brevis

Answer 10

Adducts, flexes, and laterally rotates thigh

Question 11

Name an action for the Vastus lateralis

Answer 11

Extends leg

Question 12

Name an action for the Vastus intermedius

Answer 12

Extends leg

Question 13

Name an action for the Vastus medialis

Answer 13

Extends leg

Question 14

Name an action for the Tensor fasciae latae

Answer 14

Flexes, abducts, and medially rotates thigh

Question 15

Name an action for the Gluteus medius

Answer 15

Abducts and medially rotates thigh

Question 16

Name an action for the Gluteus minimus

Answer 16

Abducts and medially rotates thigh

Question 17

Name an action for the Semitendinosus

Answer 17

Extends thigh, flexes leg

Question 18

Name an action for the Semimembranosus

Answer 18

Extends thigh, flexes leg

Question 19

Name the 5 muscles which make up the Quadriceps Femoris

Answer 19

1. Rectus femoris
2. Vastus lateralis
3. Vastus intermedius
4. Vastus medialis
5. Tensor fasciae latae

Question 20

Name the 3 muscles which make up the Hamstrings

Answer 20

1. Biceps femoris
2. Semitendinosus
3. Semimembranosus