Lower Leg, Ankle, and Foot

Question 1

What is the point of origin for the tibialis anterior muscle?

Answer 1

Lateral condyle of the tibia and the interosseous membrane.

Question 2

Where does the tibialis anterior muscle insert?

Answer 2

Medial cuneiform and base of the first metatarsal.

Question 3

What is the primary movement of the tibialis anterior?

Answer 3

Dorsiflexion of the foot.

Question 4

Which nerve innervates the tibialis anterior muscle?

Answer 4

Deep fibular nerve.

Question 5

True or False: The gastrocnemius muscle originates from the femur.

Answer 5

True.

Question 6

Where does the gastrocnemius muscle insert?

Answer 6

Calcaneus via the Achilles tendon.

Question 7

What are the primary movements produced by the gastrocnemius muscle?

Answer 7

Plantarflexion of the foot and flexion of the knee.

Question 8

Which nerve innervates the gastrocnemius muscle?

Answer 8

Tibial nerve.

Question 9

Fill in the blank: The soleus muscle originates from the ______ and the ______.

Answer 9

Soleal line of the tibia; head of the fibula.

Question 10

Where does the soleus muscle insert?

Answer 10

Calcaneus via the Achilles tendon.

Question 11

What is the primary movement of the soleus muscle?

Answer 11

Plantarflexion of the foot.

Question 12

Which nerve innervates the soleus muscle?

Answer 12

Tibial nerve.

Question 13

What is the point of origin for the fibularis longus?

Answer 13

Head and upper two-thirds of the fibula.

Question 14

Where does the fibularis longus muscle insert?

Answer 14

Base of the first metatarsal and medial cuneiform.

Question 15

What is the primary movement of the fibularis longus?

Answer 15

Eversion of the foot.

Question 16

Which nerve innervates the fibularis longus muscle?

Answer 16

Superficial fibular nerve.

Question 17

What is the point of origin for the fibularis brevis?

Answer 17

Lower two-thirds of the fibula.

Question 18

Where does the fibularis brevis muscle insert?

Answer 18

Tuberosity of the fifth metatarsal.

Question 19

What is the primary movement of the fibularis brevis?

Answer 19

Eversion of the foot.

Question 20

Which nerve innervates the fibularis brevis muscle?

Answer 20

Superficial fibular nerve.

Question 21

True or False: The extensor digitorum longus originates from the lateral condyle of the tibia.

Answer 21

True.

Question 22

Where does the extensor digitorum longus insert?

Answer 22

Middle and distal phalanges of toes 2 to 5.

Question 23

What is the primary movement of the extensor digitorum longus?

Answer 23

Extension of the toes.

Question 24

Which nerve innervates the extensor digitorum longus?

Answer 24

Deep fibular nerve.

Question 25

What is the point of origin for the flexor digitorum longus?

Answer 25

Posterior surface of the tibia.

Question 26

Where does the flexor digitorum longus insert?

Answer 26

Distal phalanges of toes 2 to 5.

Question 27

What is the primary movement of the flexor digitorum longus?

Answer 27

Flexion of the toes.

Question 28

Which nerve innervates the flexor digitorum longus?

Answer 28

Tibial nerve.

Question 29

What is the primary function of the tibialis posterior?

Answer 29

Inversion of the foot.

Question 30

Where does the tibialis posterior muscle originate?

Answer 30

Interosseous membrane and adjacent surfaces of the tibia and fibula.

Question 31

Where does the tibialis posterior insert?

Answer 31

Navicular and medial cuneiform.

Question 32

Which nerve innervates the tibialis posterior muscle?

Answer 32

Tibial nerve.