leg and dorsum of foot muscle actions

Question 1

flexor hallucis longus

Answer 1

• flexes digit 1 at IP and MTP joints

- plantar flexes foot

Question 2

tibialis anterior

Answer 2

• dorsiflexes and inverts foot

Question 3

flexor digitorum longus

Answer 3

• flexes digits 2-5 and IP and MTP joints

- plantar flexes foot

Question 4

dorsal interossei

Answer 4

• abduct digits 3 and 4; medially and laterally abduct digit 2
• flex MTP joints of digits 2-4
• extend IP joints of digits 2-4

Question 5

gastrocnemius

Answer 5

• plantar flexes foot

- flexes leg

Question 6

fibularis tertius

Answer 6

• dorsiflexes and everts foot

Question 7

extensor hallucis longus

Answer 7

• extends digit 1 at IP and MTP joints

- dorsiflexes foot

Question 8

fibularis longus

Answer 8

• everts and plantar flexes foot

Question 9

popliteus

Answer 9

• flexes and medially rotates leg

Question 10

soleus

Answer 10

• plantar flexes foot

Question 11

extensor digitorum longus

Answer 11

• extends digits 2-5 and IP and MTP joints

- dorsiflexes foot

Question 12

extensor hallucis brevis

Answer 12

• extends digit 1 and MTP joint

Question 13

plantaris

Answer 13

• plantar flexes foot

Question 14

fibularis brevis

Answer 14

• everts and plantar flexes foot

Question 15

tibialis posterior

Answer 15

• plantar flexes and inverts foot

Question 16

extensor digitorum brevis

Answer 16

• extends digits 2-4 at IP and MTP joints