Muscles of the Foot

Question 1

What is the extensor retinacula of the foot?

Answer 1

the deep fascia is thickened in the anterior of the ankle and forms two bands holding the extensor tendons for their actions in the foot

Question 2

What are the retinacula of the foot?

Answer 2

superior extensor retinaculum and inferior extensor retinaculum

Question 3

What muscles does the superficial group of the posterior compartment contain?

Answer 3

gastrocnemius, soleus, plantaris

Question 4

What is the superficial group of the posterior compartment also known as?

Answer 4

calf muscles

Question 5

What group of muscles share the common calcaneal (achilles) tendon?

Answer 5

superficial group of posterior compartment

Question 6

What muscles does the deep group of the posterior compartment include?

Answer 6

popliteus, tibialis posterior, flexor hallucis longus, flexor digitorum longus

Question 7

How many bellies does the gastrocnemius have?

Answer 7

two

Question 8

What is the origin of the gastrocnemius

Answer 8

lateral and medial condyle of femur

Question 9

What are the actions of the gastrocnemius

Answer 9

plantar flexion of foot, flexion of leg

Question 10

What is the origin of the soleus

Answer 10

head of fibula, medial border of tibia

Question 11

What is the origin of the plantaris

Answer 11

lateral epicondyle of femur

Question 12

What are the actions of the soleus and plantaris

Answer 12

plantar flexion of foot, flexion of leg

Question 13

What is the origin of the popliteus

Answer 13

lateral epicondyle of femur

Question 14

What is the insertion of the popliteus

Answer 14

proximal end of tibia

Question 15

What are the actions of the popliteus

Answer 15

flexion of leg, medial rotation of leg

Question 16

What is the deepest muscle of the deep posterior compartment

Answer 16

tibialis posterior

Question 17

What is the origin of the tibialis posterior

Answer 17

proximal end of tibia, interosseus memb

Question 18

What is the insertion of the tibialis posterior

Answer 18

Metatarsals II-IV, navicular and all cuneiform

Question 19

What are the actions of the tibialis posterior

Answer 19

plantar flexion and inversion of foot

Question 20

What is the origin of the flexor digitorum longus

Answer 20

middle 1/3 of tibia

Question 21

What is the insertion of the flexor digitorum longus

Answer 21

distal phalanx of toes II-V

Question 22

What are the actions of the flexor digitorum longus

Answer 22

plantar flexion of foot, flexion of toes

Question 23

What is the origin of the flexor hallucis longus?

Answer 23

inferior 2/3 of tibia

Question 24

What is the insertion of the flexor hallucis longus

Answer 24

distal phalanx of big toe

Question 25

What are the actions of the flexor hallucis longus

Answer 25

plantar flexion of foot, flex hallux

Question 26

What are the groups of the intrinsic muscles of the foot?

Answer 26

dorsal and plantar

Question 27

What muscles does the dorsal group of the intrinsic muscle of the foot contain?

Answer 27

extensor hallucis brevis, extensor digitorum brevis

Question 28

How many layers of the plantar group of the intrinsic muscles of the foot arranged in?

Answer 28

4

Question 29

What is the plantar aponeurosis

Answer 29

fascia that extends from the calcaneus to the toes, supports longitudinal arch and encloses the flexor tendons