Leg

Question 1

Tibialis anterior Origin

Answer 1

lateral condyle of tibia, superior lateral surface of tibia

Question 2

Tibialis anterior Insertion

Answer 2

medial (1st) cuneiform (medial and inferior surface), base of first metatarsal

Question 3

Tibialis anterior Action

Answer 3

inversion of foot, dorsiflexion at ankle joint

Question 4

Tibialis anterior Innervation

Answer 4

deep fibular n.

Question 5

Tibialis anterior Blood Supply

Answer 5

anterior tibial a.

Question 6

Extensor digitorum longus Action

Answer 6

extension of all joints of digits 2-5, dorsiflexion at ankle joint

Question 7

Extensor hallucis longus Action

Answer 7

extension of digit one, dorsiflexion at ankle joint

Question 8

Fibularis (Peroneus) tertius Action

Answer 8

dorsiflexion at ankle joint, eversion of foot

Question 9

Fibularis (Peroneus) longus Origin

Answer 9

head and upper 2/3 of lateral fibula

Question 10

Fibularis (Peroneus) longus Insertion

Answer 10

base of first metatarsal, medial (1st) cuneiform

Question 11

Fibularis (Peroneus) longus Action

Answer 11

eversion of foot, plantarflexion at ankle joint

Question 12

Fibularis (Peroneus) longus Innervation

Answer 12

superficial fibular n.

Question 13

Fibularis (Peroneus) longus Blood Supply

Answer 13

fibular a.

Question 14

Fibularis (Peroneus) brevis Action

Answer 14

eversion of foot, plantarflexion at ankle joint

Question 15

Gastrocnemius Origin

Answer 15

superior surface of the medial and lateral condyles of femur

Question 16

Gastrocnemius Insertion

Answer 16

calcaneus (via calcaneal tendon)

Question 17

Gastrocnemius Action

Answer 17

plantarflexion at the ankle joint; flexion of leg

Question 18

Gastrocnemius Innervation

Answer 18

tibial n.

Question 19

Gastrocnemius Blood Supply

Answer 19

popliteal a., posterior tibial a.

Question 20

Soleus Action

Answer 20

plantarflexion at ankle joint

Question 21

Plantaris Action

Answer 21

assists plantarflexion at ankle joint

Question 22

Popliteus Action

Answer 22

rotation of knee around axis (unlocks the knee from extension by rotating the femur laterally on the fixed tibia)

Question 23

Tibialis posterior Origin

Answer 23

upper 2/3 of posterior tibia and fibula, interosseous membrane

Question 24

Tibialis posterior Insertion

Answer 24

navicular, 1st and 2nd cuneiform, cuboid, calcaneus, metatarsals 2-4

Question 25

Tibialis posterior Action

Answer 25

inversion of foot, plantar flexion at ankle joint, adduction of toe-end of foot

Question 26

Tibialis posterior Innervation

Answer 26

tibial n.

Question 27

Tibialis posterior Blood Supply

Answer 27

posterior tibial a.

Question 28

Flexor hallucis longus Origin

Answer 28

middle 1/3 of posterior fibula, interosseous membrane

Question 29

Flexor hallucis longus Insertion

Answer 29

base of distal phalanx of digit one

Question 30

Flexor hallucis longus Action

Answer 30

flexion of digit one (all joints), plantarflexion at ankle joint (weak), supports longitudinal arches of foot

Question 31

Flexor hallucis longus Innervation

Answer 31

tibial n.

Question 32

Flexor hallucis longus Blood Supply

Answer 32

posterior tibial a.

Question 33

Flexor digitorum longus Origin

Answer 33

middle 1/3 of posterior tibia

Question 34

Flexor digitorum longus Insertion

Answer 34

base of distal phalanges of digits 2-5

Question 35

Flexor digitorum longus Action

Answer 35

flexion of digits 2-5, plantarflexion at ankle joint (weak), supports longitudinal arches of foot

Question 36

Flexor digitorum longus Innervation

Answer 36

tibial n.

Question 37

Flexor digitorum longus Blood Supply

Answer 37

posterior tibial a.