Cadaver Lab Quizzing Flashcards
What innervates and vascularizes posterior leg
Tibial n. And Posterior Tibial a.
Whats the fascia in the thigh called
Fascia lata
Which muscles are contained within superficial posterior leg
Gastrocnemius, soleus, plantaris
Which muscles are within the deep posterior leg group
Popliteus, flexor hallucis longus, flexor digitorum longus, tibialis posterior
Which muscle of the posterior leg crosses both the knee and ankle joint?
Gastrocnemius, plantaris
Sometimes the lateral head of the gastrocnemius contains a sesamoid bone near its proximal attachment. What is this bone called?
Fabella
Which muscle. Of the posterior leg attaches calcaneus via achilles tendon
Soleus, gastrocnemius, plantaris
What makes up the triceps surae
2 heads of gastrocnemius, 1 of soleus
Which posterior leg muscle is proposed to be a proprioceptive organ for foot position (unusually high density of proprioceptive receptor end organs)
Plantaris
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?
Plantaris tendon: removal does not affect knee or ankle movements
This triangular muscles forms the floor of the popliteal fossa
Popliteus
Which muscle laterally rotates the femur on a stationary tibia to unlock the extended leg
Popliteus
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?
Flexor hallucis longus
The medial and lateral tubercle of the posterior process of the talus leave a groove for what tendon to pass through?
Flexor hallucis longus
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?
Tibialis posterior (deepest posterior crural muscle)
What are the functions of tibialis posterior
Inversion, plantarflexion
When. Looking at the medial aspect of the ankle joint, what plantar and digital flexor neurovasculature structures do we see
Tibialis posterior, flexor Digitorum longus, posterior tibial Artery, tibial Nerve, flexor Hallicus longus
(Tom, Dick AN Harry)
The tibial nerve passes with posterior tibial vessels between which two muscles?
Soleus and tibialis posterior
Where does the tibial nerve exit the posterior compartment
Passes deep to flexor retinaculum between medial malleolus and calcaneus (divides into medial and lateral plantar nerves)
Largest branch of the posterior tibial artery
Fibular a.
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?
Inversion
When do we use posterior tibial pulse?
Patients with occlusive peripheral arterial disease. (Arteries occlude and ischemia results)
