Muscles of the leg

Question 1

Tibialis anterior- attachment

Answer 1

Lateral condyle & lateral surface of tibia

Medial cuneiform, base of 1st MT

Question 2

Tibialis anterior- action

Answer 2

Dorsiflexes and inverts foot

Question 3

Tibialis anterior- innervation

Answer 3

Deep fibular n. (L4-L5)

Question 4

Extensor digitorum longus- attachment

Answer 4

Lateral condyle of tibia, medial surface of tibia

Extensor expansions to middle & distal phalanges of digits 2-5

Question 5

Extensor digitorum longus- action

Answer 5

Extends digits 2-5 at IP & MTP joints

Dorsiflexes foot

Question 6

Extensor digitorum longus- innervation

Answer 6

Deep fibular n. (L4-L5)

Question 7

Extensor hallucis longus- attachment

Answer 7

Anterior surface of tibia

Distal phalanx of digit 1

Question 8

Extensor hallucis longus- action

Answer 8

Extends digit 1 at IP & MTP joints

Dorsiflexes foot

Question 9

Extensor hallucis longus- innervation

Answer 9

Deep fibular n. (L4-L5)

Question 10

Fibularis tertius- attachment

Answer 10

Anterior surface of tibia

Base of 5th MT

Question 11

Fibularis tertius- action

Answer 11

Dorsiflexes & everts foot

Question 12

Fibularis tertius- innervation

Answer 12

Superficial fibular n. (L4-L5)

Question 13

Fibularis longus- attachment

Answer 13

Lateral surface of tibia

Base of 1st MT, medial cuneiform

Question 14

Fibularis longus- action

Answer 14

Everts & plantarflexes foot

Question 15

Fibularis longus- innervation

Answer 15

Superficial fibular n. (L5-S2)

Question 16

Fibularis brevis- attachment

Answer 16

Lateral surface of fibula

Tuberosity of 5th MT

Question 17

Fibularis brevis- action

Answer 17

Everts & plantarflexes foot

Question 18

Fibularis brevis- innervation

Answer 18

Superficial fibular n. (L5-S2)

Question 19

Gastrocnemius- attachment

Answer 19

Lateral head: lateral condyle of femur
Medial head: medial condyle of femur
Posterior surface of calcaneus via calcaneal tendon

Question 20

Gastrocnemius- action

Answer 20

Planterflexes foot

Flexes leg

Question 21

Gastrocnemius- innervation

Answer 21

Tibial n. (S1-S2)

Question 22

Soleus- attachment

Answer 22

Posterior surface of fibula, soleal line & medial surface of tibia
Posterior surface of calcaneus via calcaneal tendon

Question 23

Soleus- action

Answer 23

Plantarflexes foot

Question 24

Soleus- innervation

Answer 24

Tibial n. (S1-S2)

Question 25

Plantaris- attachment

Answer 25

Lateral supracondylar line of femur | Posterior surface of calcaneus via calcaneal tendon

Question 26

Plantaris- action

Answer 26

Planterflexes foot

Question 27

Plantaris- innervation

Answer 27

Tibial n. (S1-S2)

Question 28

Popliteus- attachment

Answer 28

Lateral condyle of femur, lateral meniscus | Superior to soleal line of tibia

Question 29

Popliteus- action

Answer 29

Flexes & medially rotates leg

Question 30

Popliteus- innervation

Answer 30

Tibial n. (L4-S1)

Question 31

Flexor hallucis longus- attachment

Answer 31

Posterior surface of fibula | Distal phalanx of digit 1

Question 32

Flexor hallucis longus- action

Answer 32

Flexes digit 1 at IP & MTP joints | Plantarflexes foot

Question 33

Flexor hallucis longus- innervation

Answer 33

Tibial n. (S2-S3)