Leg

Question 1

What are the three muscle compartments of the leg?

Answer 1

1) posterior
2) anterior
3) lateral

Question 2

What nerve innervates the posterior muscle compartment of the leg?

Answer 2

tibial branch of sciatic nerve

Question 3

Is the gastrocnemius deep or superficial?

Answer 3

superficial

Question 4

What is the general shape of the gastrocnemius?

Answer 4

2 heads (lateral and medial head)

Question 5

O: gastrocnemius

Answer 5

femoral condyles (or lateral and medial heads)

Question 6

I: gastrocnemius

Answer 6

tendon (Achilles tendon) to cutaneous

Question 7

F: gastrocnemius

Answer 7

1) flexion of knee joint

2) plantar flexion

Question 8

N: gastrocnemius

Answer 8

tibial branch of sciatic nerve

Question 9

Is the tibialis posterior deep or superficial?

Answer 9

deep

Question 10

O: Tibialis posterior

Answer 10

tibia, fibula and interosseus membrane between tibia and fibula

Question 11

I: Tibialis posterior

Answer 11

tendon attaches to all tarsal bones except for talus

Question 12

F: Tibialis posterior

Answer 12

maintain arch of foot but also helps with plantar flexion

Question 13

N: Tibialis posterior

Answer 13

tibial branch of sciatic nerve

Question 14

What are the muscles in posterior muscle compartment of the leg?

Answer 14

1) Gastrocnemius

2) Tibialis posterior

Question 15

What nerve innervates the anterior muscle compartment of the leg?

Answer 15

Deep fibular nerve (branch of common fibular nerve, which is branch of sciatic nerve)

Question 16

O: Tibialis anterior

Answer 16

lateral tibial condyle

Question 17

I: Tibialis anterior

Answer 17

medial cuneiform (one of the bones on the medial border of the foot)

Question 18

F: Tibialis anterior

Answer 18

1) prime mover for both dorsi flexion

2) inversion of foot

Question 19

N: Tibialis anterior

Answer 19

deep fibular nerve

Question 20

What nerve innervates the lateral muscle compartment of the leg?

Answer 20

superficial fibular nerve (branch of common fibular nerve, which is branch of sciatic nerve)

Question 21

O: Fibularis longus

Answer 21

shaft of fibula

Question 22

I: Fibularis longus

Answer 22

wraps around lateral border, passes obliquely through plantar of foot and attaches to medial cuneiform

Question 23

F: Fibularis longus

Answer 23

prime mover for eversion of foot

Question 24

N: Fibularis longus

Answer 24

superficial fibular nerve

Question 25

Prime mover for dorsi flexion of foot?

Answer 25

Tibialis anterior

Question 26

Prime mover for inversion of foot

Answer 26

Tibialis anterior

Question 27

Prime mover for eversion of foot

Answer 27

Fibularis longus