Thigh muscle actions and innervations

Question 1

Action of Gluteus Maximus?

Answer 1

Power extension and lateral rotation of the femur

Question 2

Action of the Gluteus Medius?

Answer 2

Abducts and Medially rotates the femur
(Prevents adduction)

Question 3

Action of the Gluteus Minimus?

Answer 3

Abducts and medially rotates the femur
(prevents adduction)

Question 4

Action of the Piriformis?

Answer 4

Lateral rotation and abduction of the femur

Question 5

Action of the Superior and Inferior gemilli?

Answer 5

Lateral rotation and abduction of the femur

Question 6

Action of the Obturator internus?

Answer 6

Lateral rotation and abduction of the femur

Question 7

Action of the quadratus femoris?

Answer 7

Lateral rotation of the femur

Question 8

Action of the obturator externus?

Answer 8

Lateral rotation of the femur

Question 9

Action of the Psoas major?

Answer 9

Flex femur

Question 10

Action of the illacus?

Answer 10

Flex femur

Question 11

Innervation of the Gluteus Maximus?

Answer 11

Inferior gluteal nerve

Question 12

Innervation of Gluteus medius?

Answer 12

Superior gluteal nerve

Question 13

Innervation of gluteus minimus?

Answer 13

Superior gluteal nerve

Question 14

Innervation of piriformis?

Answer 14

S1-S2

Question 15

Innervation of superior and inferior gemelli?

Answer 15

L5-S1

Question 16

Innervation of obturator internus?

Answer 16

L5-S1

Question 17

Innervation of quadratus femoris

Answer 17

L5-S1

Question 18

Innervation of obturator externus

Answer 18

Obturator nerve

Question 19

Innervation of psoas major?

Answer 19

L2-L3 and femoral nerve

Question 20

Innervation of illacus?

Answer 20

L2-L3 and femoral nerve.

Question 21

Tensor Facia Latae actions

Answer 21

Medial rotation, Abduction, Flexion of the femur

Question 22

Rectus Femoris Action

Answer 22

Flex femur and extend knee

Question 23

Vastus medialis action

Answer 23

Extend knee

Question 24

Vastus intermedius action

Answer 24

Extend Knee

Question 25

Vastus Lateralis action

Answer 25

Extend knee

Question 26

Gracilis action

Answer 26

Adduct, Flex and medially rotate the femur. Flex the knee

Question 27

Sartorius Action

Answer 27

Abduction, Flexion, and lateral rotation of the femur. Flex knee

Question 28

Pectineus action

Answer 28

Adduct and flex femur

Question 29

Adductor magnus action

Answer 29

Flex and extend femur

Question 30

Adductor brevis action

Answer 30

Adduct/flex femur

Question 31

Adductor longus action

Answer 31

Adduct/flex femur

Question 32

Semimembranosus action

Answer 32

Extend and medially rotate femur, flex knee

Question 33

Semitendinosus action

Answer 33

Extend, medially rotate femur, flex knee

Question 34

Long head of bicep femoris action

Answer 34

Extend, laterally rotate, and flex knee

Question 35

Short head of bicep femoris

Answer 35

Flex knee

Question 36

Innervation of rectus femoris

Answer 36

femoral n

Question 37

Innervation of vastus medialis

Answer 37

femoral n

Question 38

Innervation of vastus intermedius

Answer 38

femoral n

Question 39

Innervation of vastus lateralis

Answer 39

femoral n

Question 40

Innervation of pectineus

Answer 40

Obturator and femoral n

Question 41

Innervation of adductor magnus

Answer 41

Obturator and tibial n

Question 42

Innervation of adductor brevis

Answer 42

Obturator n

Question 43

Innervation of adductor longus

Answer 43

Obturator n

Question 44

Innervation of Sartorius

Answer 44

femoral n

Question 45

Innervation of gracilis

Answer 45

Obturator n

Question 46

Innervation of semimembranosus

Answer 46

Tibial portion of sciatic n

Question 47

Innervation of semitendinosus

Answer 47

Tibial portion of sciatic n

Question 48

Innervation of bicep femoris

Answer 48

Tibial portion of sciatic n