Knee

Question 1

popliteal fossa boundaries and contents?

Answer 1

Sup: biceps femoris, semitendonosis, semimembranosis Inf: gastrocnemius (medial and lateral heads)

Roof: skin and fascia Floor: femur, tendon of semimembranosus, oblique popliteal ligament.

Contents:

popiteal artery (genicular branches to the knee joint). Popliteal vein and lymphatics vessels and nodes.

tibial and common fibular nerves.

small saphaneous

Fat

popliteal bursa

Question 2

what kind of point is the interosseous membrane of of the leg

Answer 2

fibrous. syndesmoses

Question 3

where is the soleal line?

Answer 3

posterior tibia

Question 4

What is a popliteal cyst?

Answer 4

fluid filled herniation of the synovial membrane of the knee. the cyst is actually in the fossa though.

Question 5

what is the sustentaculum tali?

Answer 5

the process of the calcaneous that supports the talus medially.

Question 6

whats in the superficial posterior compartment of the leg?

Answer 6

all innervated by the tibial nerve (S1, S2 both promary).

gastrocnemius

soleus

plantaris

Question 7

What is tricky about the gastrocnemius origin?

Answer 7

lateral head of the gastrocnemius is on the condyle of the femur while the medial head is superior to the condyle.

Question 8

how could you lose the tibial terve but still have inversion?

Answer 8

both anterior and posterior tibialis invert but they are innervated by different nerves.