Session 9 - Politeal Fossa Flashcards Preview

Semester 2 - MSK > Session 9 - Politeal Fossa > Flashcards

Flashcards in Session 9 - Politeal Fossa Deck (20)
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1
Q

Where is the popliteal fossa found? What does it look like?

A

Diamon shaped area on posterior side of knee

2
Q

What is the significance of the popliteal fossa?

A

It is the main path in which structures move from the thigh to the leg.

3
Q

What compartments make up popliteal fossa?

A

Posterior compartments of leg and thigh

4
Q

What makes up the superior and medial border of the polipteal fossa? (purple)

A

Semimembranosus

5
Q

What makes up the Superior and lateral border (green)

A

Biceps femoris

6
Q

What makes up the Inferior and medial border(brown)

A

Medial head of the gastrocnemius.

7
Q

What makes up the inferior and lateral border? (tan colour)

A

Lateral head of the gastrocnemius and plantaris.

8
Q

wWhat makes up the floor of the popliteal fossa?

A

posterior surface of the knee joint capsule, and by the posterior surface of the femur

9
Q

What is the roof of the popliteal fossa made up of?

A

popliteal fascia and skin

10
Q

What is the popliteal fascia continuous with?

A

Fascia lata of the leg

11
Q

What are the contents of the popliteal fossa?

A

AV NODE (medial to lateral) Popliteal artery Popliteal vein Small saphenous vein Tibial nerve Common fibular nerve

12
Q

What are the most superficial contents of the popliteal fossa?

A

tibial and common fibular nerves

13
Q

What are the tibial and common fibular nerves branches of?

A

Sciatic nerve

14
Q

What does the small saphenous vein do?

A

Pierces the popliteal fascia of the popliteal fossa to enter the diamond and empty into the popliteal vein

15
Q

What is the deepest structure in the popliteal fossa?

A

Popliteal artery

16
Q

What is the popliteal artery a continuation of

A

Femoral artery

17
Q

What is an aneurysm?

A

a dilation of an artery, which is greater than 50% of the normal diameter

18
Q

What occurs in an aneurysm of the popliteal artery?

A

Dilation of artery of >50% normal diameter Popliteal fascia is tough and non extensible and so aneurysm compresses contents of the fossa - notably the tibial nerve

19
Q

What will damage to the tibial nerve present as

A

Leg anesthesia or loss of leg motor function

20
Q

What can an aneurysm of the popliteal be detected by?

A

An obvious palpable pulsation in the popliteal fossa, with abnormal arterial sounds.