Popliteal Fossa

Question 1

Where is the Popliteal fossa?

Answer 1

A diamond shape on the back on the knee

Question 2

What is the superior and medial border of the Popliteal fossa?

Answer 2

Semimembranosus

Question 3

What is the superior and lateral border of the Popliteal fossa?

Answer 3

Biceps Femoris

Question 4

What is the inferior and medial border of the Popliteal fossa?

Answer 4

Medial head of the Gastrocnemius

Question 5

What is the Inferior and lateral border of the Popliteal fossa?

Answer 5

Lateral head of the Gastrocnemius and Plantaris

Question 6

What is the floor of the Popliteal fossa?

Answer 6

Posterior surface of the knee joint capsule

Posterior surface of the femur

Question 7

What is the roof of the Popliteal fossa?

Answer 7

Two layers:
Popliteal fascia
Skin

Question 8

What are the contents of the Popliteal fossa?

Answer 8

Popliteal artery
Popliteal vein
Small Saphenous vein
Tibial vein
Common fibular nerve

Question 9

What are the tibial and common fibular nerves branches of?

Answer 9

The sciatic nerve

Question 10

What is the clinical relevance of the Popliteal fossa?

Answer 10

Can have Popiteal aneurysm

Question 11

What is an aneurysm?

Answer 11

Dilation of an artery that is 50% more than its original size.

Question 12

How does a Popliteal fossa have consequences?

Answer 12

Because the Popliteal fascia layer is tough an aneurysm will increase the pressure inside the Popliteal fossa.

Question 13

How can the Tibial nerve be effected by a Popliteal aneurysm?

Answer 13

Tibial nerve is compressed and damage can cause loss of leg function or sensation

Question 14

How can a Popliteal aneurysm be detected?

Answer 14

Obvious palpable pulsation

Abnormal arterial sounds