Ankle and Foot

Question 1

Gastrocnemius Origin

Answer 1

medial and lateral head: posterior surface of the medial and lateral femoral head

Question 2

Gastrocnemius Insertion

Answer 2

posterior surface of the calcaneus (Achilles tendon)

Question 3

Gastrocnemius Actions

Answer 3

ankle plantar flexion, knee flexion

Question 4

Soleus Origin

Answer 4

posterior surface of the proximal fibula and proximal 2/3 of the posterior tibial surface

Question 5

Soleus Insertion

Answer 5

posterior surface of the calcaneus (Achilles tendon)

Question 6

Soleus Actions

Answer 6

ankle plantar flexion

Question 7

Peroneus (fibularis) longus Origin

Answer 7

head and upper 2/3 of the lateral surface of fibula

Question 8

Peroneus (fibularis) longus Insertion

Answer 8

undersurfaces of medial cuneiform and first metatarsal bones

Question 9

Peroneus (fibularis) longus Actions

Answer 9

foot eversion, ankle plantar flexion

Question 10

Peroneus (fibularis) brevis Origin

Answer 10

mid to lower 2/3 of lateral surface of fibula

Question 11

Peroneus (fibularis) brevis Insertion

Answer 11

tuberosity of fifth metatarsal

Question 12

Peroneus (fibularis) brevis Actions

Answer 12

foot eversion, ankle plantar flexion

Question 13

Peroneus (fibularis) tertius Origin

Answer 13

distal 1/3 of anterior fibula

Question 14

Peroneus (fibularis) tertius Insertion

Answer 14

superior aspect of the base of fifth metatarsal

Question 15

Peroneus (fibularis) tertius Actions

Answer 15

foot eversion, ankle dorsiflexion

Question 16

Extensor digitorum longus Origin

Answer 16

lateral condyle of tibia, head of fibula, and upper 2/3 of anterior surface of fibula

Question 17

Extensor digitorum longus Insertion

Answer 17

tops of middle and distal phalanges of the four lesser toes

Question 18

Extensor digitorum longus Actions

Answer 18

four lesser toes extension at metatarsophalangeal (MTP), PIP, and DIP joints; ankle dorsiflexion; foot eversion

Question 19

Extensor hallucis longus Origin

Answer 19

middle 2/3 of medial surface of the anterior fibula

Question 20

Extensor hallucis longus Insertion

Answer 20

top of the base of the distal phalanx of great toe

Question 21

Extensor hallucis longus Actions

Answer 21

ankle dorsiflexion, great toe extension at the MTP and IP joints

Question 22

Tibialis anterior Origin

Answer 22

upper 2/3 of lateral surface of tibia

Question 23

Tibialis anterior Insertion

Answer 23

inner surface of medial cuneiform and base of the first metatarsal bone

Question 24

Tibialis anterior Actions

Answer 24

ankle dorsiflexion, foot inversion

Question 25

Tibialis posterior Origin

Answer 25

posterior surface of the upper ½ of the interosseus membrane and adjacent surfaces of tibia and fibula

Question 26

Tibialis posterior Insertion

Answer 26

inferior surfaces of navicular, cuneiform, and cuboid bones and bases of 2nd, 3rd, and 4th metatarsal bones

Question 27

Tibialis posterior Actions

Answer 27

ankle plantar flexion, foot inversion

Question 28

Flexor digitorum longus Origin

Answer 28

middle 1/3 of posterior surface of tibia

Question 29

Flexor digitorum longus Insertion

Answer 29

base of the distal phalanx of each of the four lesser toes

Question 30

Flexor digitorum longus Actions

Answer 30

flexion of four lesser toes at the MTP, PIP, and DIP joints; foot inversion; ankle plantar flexion

Question 31

Flexor hallucis longus Origin

Answer 31

middle 2/3 of the posterior surface of fibula

Question 32

Flexor hallucis longus Insertion

Answer 32

base of the distal phalanx of the great toe (plantar surface)

Question 33

Flexor hallucis longus Actions

Answer 33

flexion of the great toe at the MTP and IP joint; foot inversion; ankle plantar flexion