Leg

Question 1

What separates the anterior and lateral compartments of the leg?

Answer 1

Anterior crural intermuscular septum

Question 2

What separates the lateral and posterior compartments of the leg?

Answer 2

Posterior crural intermuscular septum

Question 3

What separates the superficial and deep posterior compartments of the leg?

Answer 3

Transverse intermuscular septum

Question 4

What are the attachments of the superior extensor retinaculum?

Answer 4

Distal tibia to distal fibula

Question 5

What are the attachments of the inferior extensor retinaculum?

Answer 5

Calcaneus to navicular and medial malleolus.

Question 6

What are the attachments of the superior fibular retinaculum?

Answer 6

Lateral malleolus to calcaneus

Question 7

What are the attachments of the inferior fibular retinaculum?

Answer 7

Inferior extensor retinaculum to calcaneous.

Question 8

What are the muscles of the anterior compartment of the leg?

Answer 8

Tibialis Anterior
Extensor Hallucis Longus
Extensor Digitorum Longus
(Fibularis Tertius)

Question 9

What are the actions of the muscles in the anterior compartment of the leg?

Answer 9

Ankle Dorsiflexion, inversion and toe extension.

If fibularis tertius was isolated it could do Eversion

Question 10

What is the main innervation and blood supply of the anterior compartment of the leg?

Answer 10

Deep Fibular Nerve

Anterior Tibial Artery.

Question 11

What are the muscles of the lateral compartment of the leg?

Answer 11

Fibularis Longus

Fibularis Brevis

Question 12

What are the actions of the muscles in the lateral compartment of the leg?

Answer 12

Eversion and Plantar Flexion

Question 13

What is the main innervation and blood supply of the lateral compartment of the leg?

Answer 13

Superficial Fibular Nerve

Fibular Artery

Question 14

What are the muscles of the superficial posterior compartment of the leg?

Answer 14

Gastrocnemius
Soleus
Plantaris

Question 15

What are the actions of the muscles in the superficial poster compartment of the leg?

Answer 15

Plantar Flexion and Knee Flexion

Question 16

What is the main innervation and blood supply of the superficial and deep posterior compartments of the leg?

Answer 16

Tibial Nerve

Posterior Tibial Artery

Question 17

What are the muscles of the deep posterior compartment of the leg?

Answer 17

Popliteus
Flexor Digitorum Longus
Flexor Hallucis Longus
Tibialis Posterior

Question 18

What are the actions of the muscles in the deep posterior compartment of the leg?

Answer 18

Plantar Flexion, Inversion, Toe Flexion, and Knee Flexion (popliteus)

Question 19

What are the common spinal cord segments of the anterior and lateral leg muscles?

Answer 19

L4-S1

Question 20

What dermatome is associated with the 1st toe?

Answer 20

L4

Question 21

What dermatome is associated with the 5th toe?

Answer 21

S1

Question 22

What dermatome is associated with the heel?

Answer 22

S2

Question 23

What is the location and pathway of the common fibular nerve?

Answer 23

You can find it deep to proximal fibularis longus and it curves around the neck of the fibula. It splits deep to fibularis longus into superficial and deep fibular nerves.

Question 24

What nerve descends with anterior tibial artery?

Answer 24

Deep fibular nerve.

Question 25

What two muscles does the deep fibular nerve run inbetween?

Answer 25

Tibialis anterior and extensor hallucis longus

Question 26

What does the tibial nerve split into?

Answer 26

Lateral and medial plantar nerves

Question 27

What does the sural nerve branch off of?

Answer 27

Tibial Nerve

Question 28

What does the tibial nerve run with?

Answer 28

Popliteal artery and vein and then continues on with posterior tibial artery.

Question 29

Superficial fibular nerve supplies what two muscles?

Answer 29

Fibularis longus and brevis.

Question 30

What are the common spinal cord segments for the Anterior and Lateral leg muscles?

Answer 30

L4-S1

Question 31

What are the common spinal cord segments for flexor digitorum longus, flexor hallucis longus, and soleus?

Answer 31

L5-S2

Question 32

What are the common spinal cord segments for gastrocnemius?

Answer 32

S1-2

Question 33

What are the common spinal cord segments for plantaris, popliteus, and tibialis posterior?

Answer 33

L4-S1