Popliteal Fossa - Boundaries, Contents, Relations | Quizlet
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23 Terms
Q: What structure forms the floor (deep wall) of the popliteal fossa?
A: Popliteal surface of femur, posterior knee capsule, oblique popliteal ligament
Q: What forms the roof (superficial wall)?
A: Skin and fascia (including small saphenous vein and posterior cutaneous nerve of thigh)
Q: What other nerve may be found laterally in the fossa?
A: Common fibular (peroneal) nerve
Q: What vein drains into the popliteal vein in the fossa?
A: Small saphenous vein
Q: What lymph nodes lie within the fossa?
A: Deep popliteal lymph nodes
Q: What artery continues from femoral artery into the fossa?
A: Popliteal artery
Q: What does the popliteal artery divide into?
A: Anterior tibial artery and posterior tibial artery
Q: What forms the superolateral border of the popliteal fossa?
A: Biceps femoris
Q: What forms the superomedial border?
A: Semimembranosus and semitendinosus
Q: What forms the inferolateral border?
A: Lateral head of gastrocnemius
Q: What forms the inferomedial border?
A: Medial head of gastrocnemius
Q: What is the deepest structure in the popliteal fossa?
A: Popliteal artery
Q: What lies superficial to the popliteal artery?
A: Popliteal vein
Q: What lies superficial to the popliteal vein?
A: Tibial nerve
Q: What is the arrangement of major structures from deep to superficial?
A: Artery → Vein → Nerve (AVN)
Q: Why is the popliteal artery vulnerable to injury?
A: Fixed position between femur and tibia; prone to damage in knee dislocation
Q: What sign suggests a popliteal artery thrombosis?
A: Loss of distal pulses and cold lower leg
Q: What nerve is most commonly injured in lateral knee trauma?
A: Common fibular nerve
Q: What structure accompanies the tibial nerve distally?
A: Posterior tibial artery
Q: What muscle lies deep and lateral to tibial nerve in the fossa?
A: Popliteus
Q: What nerve can be compressed by Baker's cyst (popliteal cyst)?
A: Tibial nerve
Q: What clinical test can assess popliteal artery flow?
A: Doppler ultrasound or palpation behind knee when flexed
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