Popliteal Artery Flashcards

Examine the popliteal artery's course through the knee region, anatomical relations, genicular branches, collateral circulation, and clinical landmarks.

Card 1 of 30Question

What is the popliteal artery?

The continuation of the femoral artery that passes through the popliteal fossa and supplies the knee region and leg.

In This Section

1. What is the popliteal artery?

The continuation of the femoral artery that passes through the popliteal fossa and supplies the knee region and leg.

2. Which artery continues as the popliteal artery?

The femoral artery.

3. Where does the popliteal artery begin?

At the adductor hiatus of the adductor magnus muscle.

4. Through which anatomical region does the popliteal artery descend?

The popliteal fossa, posterior to the knee joint.

5. What is the general course of the popliteal artery?

It descends through the popliteal fossa close to the posterior knee joint capsule and continues deep to the popliteus muscle.

6. What are the superior boundaries of the popliteal fossa?

Biceps femoris superolaterally and semimembranosus with semitendinosus superomedially.

7. What forms the inferior boundaries of the popliteal fossa?

The medial and lateral heads of the gastrocnemius muscle.

8. What is the superficial-to-deep arrangement of the principal neurovascular structures in the popliteal fossa?

Tibial nerve, popliteal vein, and popliteal artery.

9. Which major nerve accompanies the popliteal artery through the popliteal fossa?

The tibial nerve, a terminal branch of the sciatic nerve.

10. Which vein accompanies the popliteal artery?

The popliteal vein, which lies superficial to the artery.

11. Which bone lies directly anterior to the upper part of the popliteal artery?

The popliteal surface of the femur.

12. Which ligament separates the popliteal artery from the posterior knee joint capsule?

The oblique popliteal ligament.

13. Which muscle lies anterior to the distal part of the popliteal artery?

The popliteus muscle.

14. Where does the popliteal artery terminate?

At the inferior border of the popliteus muscle.

15. What are the two terminal branches of the popliteal artery?

The anterior tibial and posterior tibial arteries.

16. What are the five principal genicular branches of the popliteal artery?

Superior medial, superior lateral, middle, inferior medial, and inferior lateral genicular arteries.

17. Which genicular branch passes superior to the medial femoral condyle?

The superior medial genicular artery.

18. Which genicular branch passes superior to the lateral femoral condyle?

The superior lateral genicular artery.

19. Which genicular artery pierces the posterior knee joint capsule?

The middle genicular artery.

20. What structures are supplied by the middle genicular artery?

The cruciate ligaments and adjacent intra-articular structures of the knee.

21. Which genicular artery passes deep to the medial collateral ligament?

The inferior medial genicular artery.

22. Which genicular artery passes deep to the fibular collateral ligament?

The inferior lateral genicular artery.

23. What are the sural arteries?

Muscular branches of the popliteal artery that primarily supply the gastrocnemius, soleus, and plantaris muscles.

24. What is the genicular arterial anastomosis?

An arterial network around the knee formed by genicular branches and contributions from femoral and leg arteries.

25. Which branch of the femoral artery contributes to the genicular arterial anastomosis?

The descending genicular artery.

26. Which branch of the anterior tibial artery contributes to the genicular anastomosis?

The anterior tibial recurrent artery.

27. Where can the popliteal arterial pulse be palpated?

Deep in the popliteal fossa with the knee flexed and the surrounding muscles relaxed.

28. Why is the popliteal artery vulnerable during knee dislocation?

Its relatively fixed position near the adductor hiatus and distal popliteal region makes it susceptible to traction and injury.

29. What is a popliteal artery aneurysm?

An abnormal localized dilation of the popliteal artery that may cause thrombosis, distal embolization, or compression of adjacent structures.

30. What is popliteal artery entrapment syndrome?

Compression of the popliteal artery by abnormal or variant musculotendinous structures, commonly involving the medial gastrocnemius.