Muscles Of The Thigh (Nerves And Actions)

Question 1

Name the nerve(s) of sartorius

Answer 1

Femoral nerve (L2-L4)

Question 2

Name the nerve(s) of rectus femoris

Answer 2

Femoral nerve (L2-L4)

Question 2

Name the nerve(s) of vastus lateralis

Answer 2

Femoral nerve (L2-L4)

Question 3

Name the nerve(s) of vastus medialis

Answer 3

Femoral nerve (L2-L4)

Question 4

Name the nerve(s) of biceps femoris

Answer 4

Sciatic nerve
Long head: tibial portion (L4-S3)
Short head: common peroneal portion (L4-S2)

Question 4

Name the nerve(s) of articularis genu

Answer 4

Femoral nerve (L2-L4)

Question 4

Name the nerve(s) of vastus intermedius

Answer 4

Femoral nerve (L2-L4)

Question 5

Name the nerve(s) of semitendinosus

Answer 5

Sciatic nerve - tibial portion (L4-S3)

Question 5

Name the nerve(s) of pectineus

Answer 5

Femoral and obturator nerve nerve (L2-L4)

Question 5

Name the nerve(s) of semimembranosus

Answer 5

Sciatic nerve - tibial portion (L4-S3)

Question 6

Name the nerve(s) of adductor longus

Answer 6

Obturator nerve (L2-L4)

Question 6

Name the nerve(s) of adductor magnus

Answer 6

Adductor portion: obturator nerve (L2-L4)

Hamstring portion: sciatic nerve (L4-S3)

Question 6

Name the nerve(s) of gracilis

Answer 6

Obturator nerve (L2-L4)

Question 7

Name the nerve(s) of obturator externus

Answer 7

Obturator nerve (L2-L4)

Question 7

Name the nerve(s) of adductor brevis

Answer 7

Obturator nerve (L2-L4)

Question 8

Name the actions of sartorius

Answer 8

Flexion, abduction, and lateral rotation of thigh at hip joint.

Flexion and assists medial
rotation at knee joint.

Question 9

Name the actions of rectus femoris

Answer 9

Extension at knee joint and flexion at hip joint

Question 9

Name the actions of vastus medialis

Answer 9

Extension and strengthens knee joint

Question 10

Name the actions of vastus lateralis

Answer 10

Extension and strengthens knee joint

Question 11

Name the actions of vastus intermedius

Answer 11

Extension at knee joint

Question 12

Name the actions of articularis genu

Answer 12

Pulls articular capsule up during knee extension to avoid pinching capsule under patella

Question 13

Name the actions of pectineus

Answer 13

Adduction and flexion of thigh at hip joint

Question 14

Name the actions of biceps femoris

Answer 14

Flexion and lateral rotation at knee joint.

Long head extends and assists lateral rotation of thigh at hip joint.

Question 15

Name the actions of semitendinosus

Answer 15

Flexion and medial rotation of thigh at knee joint.

Extends and assists medial rotation of thigh at hip joint.

Question 16

Name the actions of semimembranosus

Answer 16

Flexion and medial rotation of thigh at knee joint.

Extends and assists medial rotation of thigh at hip joint.

Question 17

Name the actions of gracilis

Answer 17

Adduction of thigh at hip joint.

Flexion and medial rotation at knee joint.

Question 18

Name the actions of adductor magnus

Answer 18

Adductor portion: adduction of thigh at hip joint

Hamstring portion: extension of thigh at hip joint

Question 19

Name the actions of adductor longus

Answer 19

Adduction of thigh at hip joint

Question 20

Name the actions of adductor brevis

Answer 20

Adduction of thigh at hip joint

Question 21

Name the actions of obturator externus

Answer 21

External rotation at hip joint