Leg Muscles

Question 1

Which muscle is NOT in the deep posterior group of the leg muscles?

a. Popliteus
b. Flexor digitorum longus
c. Flexor hallucis longus
d. Tibialis posterior
e. None of the above
f. Both A and B

Answer 1

e. None of the above

Question 2

Gastrocnemius

Answer 2

Plantar flexion
Flex leg at knee joint

Tibial nerve

Question 3

Soleus

Answer 3

Plantar flexion

Tibial nerve

Question 4

Plantaris

Answer 4

Leg flexion
Weak plantar flexion

Tibial nerve

Question 5

Popliteus

Answer 5

Unlocks extended leg (by laterally rotating femur
Flexes leg weakly

Tibial nerve

Question 6

Flexor Hallucis Longus

Answer 6

Flexes great toe
Plantar flex (Extend) foot at ankle joint

Tibial

Question 7

Flexor digitorum longus

Answer 7

Flexes lateral four digits
Plantar flex (extend) foot at ankle

Tibial

Question 8

Tibialis posterior

Answer 8

Inversion of foot (Inward)
Plantar Flexion (extend) at ankle

Tibial

Question 9

Which group is for dynamic support of foot arch and which is for passive support?

a.
Plantar aponeurosis     
Short plantar ligament
Long plantar ligament
Plantar calcaneonavicular ligament

b. 
Tibialis posterior
Tibialis anterior
Flexor hallicus longus
Fibularis longus
Intrinsic plantar muscles

Answer 9

a = passive
b = dynamic

Question 10

Which nerve supplies all muscles of posterior leg compartment?

a. Sciatic nerve
b. Common fibular
c. Tibial
d. Femoral

Answer 10

c. Tibial

Question 11

Which arteries supply the posterior compartment of leg?

a. Fibular artery
b. Tibial artery
c. Popliteal artery
d. Both A and B

Answer 11

d. Both A and B

Question 12

Which artery is only artery that supplies lateral compartment of posterior leg?

a. Fibular artery
b. Tibial artery
c. Popliteal artery
d. Both A and B

Answer 12

a. Fibular

Question 13

Which are anterior compartment muscles and which are lateral compartment muscles?

Tibialis anterior
Extensor hallucis longus
Fibularis longus
Extensor digitorum longus
Fibular tertius
Fibularis brevis

Answer 13

Tibialis anterior - anterior
Extensor hallucis longus - anterior
Fibularis longus - lateral
Extensor digitorum longus - anterior
Fibular tertius - anterior
Fibularis brevis - lateral

Question 14

Which artery and nerve supplies the anterior compartment of the leg?

a. Anterior tibial artery; Deep fibular nerve
b. Anterior tibial artery; Anterior fibular nerve
c. Fibular artery; Tibial nerve
d. Anterior fibular artery; Anterior tibial nerve

Answer 14

a. Anterior tibial artery; Deep fibular nerve

Question 15

What is the primary function of the anterior compartment muscles?

a. Plantar flexion
b. Dorsiflexion
c. Toe extension
d. Toe flexion
e. B and C
f. A and D

Answer 15

e. B and C

Question 16

Tibialis anterior

Answer 16

Dorsiflexion foot
Inversion foot

Deep fibular nerve

Question 17

Extensor digitorum longus

Answer 17

Extends lateral four digits
Dorsiflexion

Deep fibular

Question 18

Fibularis tertius

Answer 18

Dorsiflexion foot
Eversion foot

Deep fibular

Question 19

Extensor hallicus longus

Answer 19

Extend hallux (big toe)
Dorsiflexion at ankle

Deep fibular

Question 20

Fibularis longus brevis

Answer 20

Eversion of foot
Dorsi flexion foot

Superficial fibular nerve

Question 21

Fibularis brevis

Answer 21

Eversion
Plantar flexion

Superficial fibular

Question 22

Damage to what muscle would cause shin splints?

a. Fibularis brevis
b. Tibialis anterior
c. Fibularis longus
d. Extensor hallucis longus

Answer 22

b. Tibialis anterior

Question 23

Which muscle is NOT in the superficial posterior group of the leg muscles?

a. Gastrocnemius
b. Soleus
c. Popliteus
d. Plantaris

Answer 23

c. Popliteus