Knee, Ankle, & Foot: Action

Question 1

Semimembranosus

Answer 1

Action: Flex the knee
Internally (medially) rotate the flexed knee
Extend the hip
Assist to internally (medially) rotate the hip
Tilt the pelvis posteriorly

Question 2

Semitendinosus

Answer 2

Action: Flex the knee
Internally (medially) rotate the flexed knee
Extend the hip
Assist to internally (medially) rotate the hip
Tilt the pelvis posteriorly

Question 3

Biceps femoris

Answer 3

Action: Flex the knee
Externally (laterally) rotate the flexed knee

(Long head)
Extend the hip
Assist to externally (laterally) rotate the hip
Title the pelvis posteriorly

Question 4

Quadriceps (rectus femoris, vastus medialis, vastus lateralis, vastus intermedius)

Answer 4

Action: Extend the knee
(Rectus femoris - Flex the hip)

Question 5

Gastrocnemius

Answer 5

Action: Flex the knee
Plantar flex the ankle