Foot Muscles Extrinsic

Question 1

name two muscle groups of foot

Answer 1

extrinsic and intrinsic

Question 2

What are the extrinsic muscles

Answer 2

those that attach proximally and attach originate the foot yet insert on foot via long tendons

Question 3

What are intrinsic muscles

Answer 3

those that originate in the foot and are shorter

Question 4

Which muscles are more powerful and are used even when wearing shoes?

Answer 4

Extrinsic

Question 5

When do you use intrinsic muscles

Answer 5

when barefoot

Question 6

What is polyarticular

Answer 6

crossing multiple joints

Question 7

Name the muscles of the anterior compartment

Answer 7

tibialis anterior
extensor hallucis longus
extensor digitorum longus
fibularis tertius

Question 8

What action do all of the extrinsic muscles do?

Answer 8

dorsiflexion

Question 9

Name the action of the extrinsic muscles

Answer 9

tibialis anterior: dorsiflexion - inversion & supination
extensor hallucis longus: dorsiflexion
extensor digitorum longus: dorsiflexion
fibularis tertius: dorsiflexion & eversion (pronatin

Question 10

What additional action do the extensor digiroum longus and extensor hallucis longus do /

Answer 10

Extend the toes

Question 11

what nerve runs through the anterior compartment

Answer 11

the deep fibular nerve (L4-L5)

Question 12

Name the lateral compartment extrinsic muscles

Answer 12

Fibularis longus
Fibularis Brevis

Question 13

What actions do the lateral compartment muscles perform

Answer 13

eversion and plantarflexion

Question 14

What does the fibularis longus do

Answer 14

eversion/pronation and plantar flextion. also supports the arches structure of foot

Question 15

What do tibialis and fibularis longus have in common

Answer 15

both support the arches structure of the foot

Question 16

What nerve runs through lateral compartment

Answer 16

superficial fibular nerve

Question 17

What is ultimate job of lateral compartment muscles

Answer 17

to prevent excessive inversion of the foot

Question 18

Name the posterior superficial compartment muscles

Answer 18

Gastrocnemius
Soleus
Plantaris

Question 19

What nerve innervates the superficial compartment muscles

Answer 19

Tibial nerve

Question 20

What two things does the gastrocnemius do

Answer 20

plantarflexion of the foot at ankle joint and flexes knee

Question 21

What does the soleus do

Answer 21

plantarflexion of foot

Question 22

What does plantaris do

Answer 22

plantarflexion of foot and flexes knee joing. Not a vital muscle

Question 23

Name the muscles in the posterior deep compartment

Answer 23

Posterior tibialis
Flexor digitorum longus
Flexor hallucis longus

Question 24

Which two posterior deep compartment muscles help flex the toes

Answer 24

Flexor digitorum longus
Flexor hallucis longus

Question 25

What do all three deep compartment muscles help do

Answer 25

plantarflexion and inversion/supination

Question 26

What does Tom, Dick and nervous Harry mean

Answer 26

anterior leg muscles that insert onto the foot
Tibialis Posterior
Flexor Digitorum Longus
Posterior Tibial Artery
Tibial Nerve
Flexor Hallucis Longus
These five tendons and nerves all run down in order from closest to the medial malleolus to furthest, underneath the medial malleolus on their way to their attachment point