Anatomy 6

Question 1

Page 5

Main Action of Anterior Fascial Compartment of Leg

Answer 1

Extension of the toes and foot Dorsiflexion

Question 2

Main function of Lateral Fascial Compartment of Leg

Answer 2

Eversion and Plantar flexion of foot. Also, these muscles support the lateral longitudinal arch of the foot.

Question 3

What muscles of
Lateral Fascial Compartment of Leg

Answer 3

Muscles: Peroneus longus (Superficial) and brevis (Deep).
2. Origin: Lateral surface of the fibula.
3. Insertion:
a. Peroneus longus: Medial cuneiform and base of 1st Metatarsal. b. Peroneus brevis: Base of 5th Metatarsal.
4. Nerve Supply: Superficial peroneal nerve.

Question 4

Superficial Group of Posterior Fascial Compartment of Leg
Main function

Answer 4

Gastrocnemius: Medial and Lateral condyles of femur.
b. Soleus: Tibia and Fibula.
c. Plantaris: Posterior femur.
- All of them insert into the calcaneus of the foot (the heel bone), via the calcaneal tendon (Achilles tendon).
- All of them plantarflex the foot.

Question 5

What the type of talocrural joint

Answer 5

hinge synovial joint formed by bones of the leg (tibia and fibula) and the foot (talus).

Question 6

Calcaneus is roughly cuboidal in shape, having 6 surfaces.

Answer 6

On superior-anterior aspect there is medial horizontal eminence called sustentaculum tali, attaches to the tendon of the Tibialis posterior Muscle.

Question 7

Superior Surface of the Calcaneus has 2 parts:

Answer 7

Superior Surface of the Calcaneus has 2 parts:

Convex attach
a. 1/3 posteriorly to Achilis.
b. 2/3’s anteriorly that articulate with the inferior surface of the talus bone.

Question 8

Structures passing behind LM superficial to Superior Peroneal Retinaculum (M→L):

Answer 8

Sural nerve. 2. Small Saphenous vein.