Ankle & Foot

Question 1

Gastrocnemius origin

Answer 1

Medial head: medial condyle and adjacent popliteal surface of the femur. Lateral head: lateral condyle of the femur.

Question 2

Gastrocnemius insertion

Answer 2

Via the tendo calcaneus into the posterior surface of the calcaneus

Question 3

Gastrocnemius nerve supply

Answer 3

Tibial n.S1, S2

Question 4

Gastrocnemius function

Answer 4

Plantar flexion of the ankle, flexion of the knee

Question 5

Soleus origin

Answer 5

Posterior surface of the head and proximal third of the body of the fibula, soleal line and middle third of the medial border of the tibia

Question 6

Soleus insertion

Answer 6

Via the tendo calcaneus into the posterior surface of the calcaneus

Question 7

Soleus nerve supply

Answer 7

Tibial n. S1, S2

Question 8

Soleus function

Answer 8

Plantar flexion of the ankle

Question 9

Tibialis anterior origin

Answer 9

Lateral condyle and upper 2/3 of the lateral surface of the body of the tibia, interosseous membrane, deep crural fascia

Question 10

Tibialis anterior insertion

Answer 10

Base of the 1st MT, medial and plantar surfaces of the medial cuneiform bone

Question 11

Tibialis anterior nerve supply

Answer 11

Deep peroneal n. L4, L5, S1

Question 12

Tibialis anterior function

Answer 12

Dorsiflexion of the ankle, inversion of the foot at the subtalar and midtarsal joints

Question 13

Peroneus longus origin

Answer 13

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

Question 14

Peroneus longus insertion

Answer 14

Base of the 1st MT, lateral aspect of the medial cuneiform

Question 15

Peroneus longus nerve supply

Answer 15

Superficial peroneal n. L4, L5, S1

Question 16

Peroneus longus function

Answer 16

Eversion of the foot at the subtalar jount, weak plantarflexion of the foot at the ankle

Question 17

Peroneus brevis origin

Answer 17

Distal 2/3 of the lateral surface of the fibula

Question 18

Peroneus brevis insertion

Answer 18

Tuberosity of the 5th MT

Question 19

Peroneus brevis nerve supply

Answer 19

Superficial peroneal n. L4, L5, S1

Question 20

Peroneus brevis function

Answer 20

Eversion of the foot at the subtalar jount, weak plantarflexion of the foot at the ankle

Question 21

Lumbricals origin

Answer 21

Tendons of the flexor digitorum longus

Question 22

Lumbricals insertion

Answer 22

Tendons of the extensor digitorum longus

Question 23

Lumbricals nerve supply

Answer 23

Medial plantar nerve (first lumbrical) and lateral plantar (lumbricals 2-4) nerves

Question 24

Lumbricals function

Answer 24

Flexion at the MTP joints and extension at the IP joints of the lateral 4 toes

Question 25

Flexor hallucis brevis origin

Answer 25

Plantar surface of the cuboid and lateral cuneiform bones

Question 26

Flexor hallucis brevis insertion

Answer 26

Base of the proximal phalanx of the great toe

Question 27

Flexor hallucis brevis nerve supply

Answer 27

Medial plantar n. L5, S1

Question 28

Flexor hallucis brevis function

Answer 28

Flexion at the MTP joint of the great toe

Question 29

Flexor digitorum longus origin

Answer 29

Posterior aspect of the body of the tibia

Question 30

Flexor digitorum longus insertion

Answer 30

Base of the distal phalanges of toes 2-5

Question 31

Flexor digitorum longus nerve supply

Answer 31

Tibial n. L5, S1

Question 32

Flexor digitorum longus function

Answer 32

Flexion at the distal and proximal IP joints of the lateral 4 toes

Question 33

Flexor digitorum brevis origin

Answer 33

Tuberosity of the calcaneus,plantar aponeurosis

Question 34

Flexor digitorum brevis insertion

Answer 34

Sides of the middle phalanges of toes 2-5

Question 35

Flexor digitorum brevis nerve supply

Answer 35

Medial plantar n. L5, S1

Question 36

Flexor digitorum brevis function

Answer 36

Flexion of the proximal IP joints of the lateral 4 toes

Question 37

Flexor halluces longus origin

Answer 37

Posterior aspect of the body of the fibula, interosseous membrane

Question 38

Flexor hallucis longus insertion

Answer 38

Base of the distal phalanx of the great toes

Question 39

Flexor hallucis longus nerve supply

Answer 39

Tibial n. L5, S1, S2

Question 40

Flexor hallucis longus function

Answer 40

Flexion at the IP joint of the great toe

Question 41

Extensor digitorum longus origin

Answer 41

Lateral tibial condyle, anterior surface of the body of the fibula, interosseous membrane

Question 42

Extensor digitorum longus insertion

Answer 42

Dorsum of the middle and distal phalanges of toes 2-5

Question 43

Extensor digitorum longus nerve supply

Answer 43

Deep peroneal nerve L4, L5, S1

Question 44

Extensor digitorum longus function

Answer 44

Extension at the MTP joints of the lateral 4 toes

Question 45

Extensor digitorum brevis origin

Answer 45

Superior surface of the calcaneus,lateral talocalacenal ligament, inferior extensor retinaculum

Question 46

Extensor digitorum brevis insertion

Answer 46

Dorsal surface of the base of the proximal phalanx of the great toe, lateral aspect of the extensor digitorum longus tendons of toes 2-4

Question 47

Extensor digitorum brevis nerve supply

Answer 47

Deep peroneal n. L5, S1

Question 48

Extensor digitorum brevis function

Answer 48

Extension at the MTP joint of the great toe and toes 2-4

Question 49

Extensor hallucis longus origin

Answer 49

Medial surface of the body of the fibula, interosseous membrane

Question 50

Extensor hallucis longus insertion

Answer 50

Base of the distal phalanx of the great toe

Question 51

Extensor hallucis longus nerve supply

Answer 51

Deep peroneal n. L4, L5, S1

Question 52

Extensor hallucis longus function

Answer 52

Extension at the IP joint of the great toe