Cadaver Lab Quizzing

Question 1

What innervates and vascularizes posterior leg

Answer 1

Tibial n. And Posterior Tibial a.

Question 2

Whats the fascia in the thigh called

Answer 2

Fascia lata

Question 3

Which muscles are contained within superficial posterior leg

Answer 3

Gastrocnemius, soleus, plantaris

Question 4

Which muscles are within the deep posterior leg group

Answer 4

Popliteus, flexor hallucis longus, flexor digitorum longus, tibialis posterior

Question 5

Which muscle of the posterior leg crosses both the knee and ankle joint?

Answer 5

Gastrocnemius, plantaris

Question 6

Sometimes the lateral head of the gastrocnemius contains a sesamoid bone near its proximal attachment. What is this bone called?

Answer 6

Fabella

Question 7

Which muscle. Of the posterior leg attaches calcaneus via achilles tendon

Answer 7

Soleus, gastrocnemius, plantaris

Question 8

What makes up the triceps surae

Answer 8

2 heads of gastrocnemius, 1 of soleus

Question 9

Which posterior leg muscle is proposed to be a proprioceptive organ for foot position (unusually high density of proprioceptive receptor end organs)

Answer 9

Plantaris

Question 10

A 27 yo man was in a motorcycle accident where he injured his left hand. If the reconstructive surgeon plans to build new tendons for this man, which posterior leg tendon would be the best option?

Answer 10

Plantaris tendon: removal does not affect knee or ankle movements

Question 11

This triangular muscles forms the floor of the popliteal fossa

Answer 11

Popliteus

Question 12

Which muscle laterally rotates the femur on a stationary tibia to unlock the extended leg

Answer 12

Popliteus

Question 13

During Soccer practice An 18 yo female was kicked in the lateral aspect of her lower leg. She immediately felt pain and upon examination, she could not flex her big toe and plantar flexion was weak when compared to the unaffected side. Which muscle may have lost tension as a result of this injury causing her symptoms?

Answer 13

Flexor hallucis longus

Question 14

The medial and lateral tubercle of the posterior process of the talus leave a groove for what tendon to pass through?

Answer 14

Flexor hallucis longus

Question 15

A victim of stabbing presents to the ER with a deep wound in the posterior leg. You have determined that only one crural muscle of the posterior compartment has not been affected. Which one most likely was not injured?

Answer 15

Tibialis posterior (deepest posterior crural muscle)

Question 16

What are the functions of tibialis posterior

Answer 16

Inversion, plantarflexion

Question 17

When. Looking at the medial aspect of the ankle joint, what plantar and digital flexor neurovasculature structures do we see

Answer 17

Tibialis posterior, flexor Digitorum longus, posterior tibial Artery, tibial Nerve, flexor Hallicus longus

(Tom, Dick AN Harry)

Question 18

The tibial nerve passes with posterior tibial vessels between which two muscles?

Answer 18

Soleus and tibialis posterior

Question 19

Where does the tibial nerve exit the posterior compartment

Answer 19

Passes deep to flexor retinaculum between medial malleolus and calcaneus (divides into medial and lateral plantar nerves)

Question 20

Largest branch of the posterior tibial artery

Answer 20

Fibular a.

Question 21

It is easiest To find posterior tibial pulse between medial malleolus and calcaneal tendon. This area is most exposed when the foot is in what position?

Answer 21

Inversion

Question 22

When do we use posterior tibial pulse?

Answer 22

Patients with occlusive peripheral arterial disease. (Arteries occlude and ischemia results)