Which valves are found within the common femoral vein?

The correct answer is based on the understanding of venous anatomy, particularly in the context of the common femoral vein. The common femoral vein is a major vein located in the thigh, and it is responsible for draining blood from the lower limb back toward the heart.

In terms of valve presence, the common femoral vein features both suprasaphenic and infrasaphenic valves. These valves serve crucial functions in ensuring unidirectional blood flow toward the heart, preventing the backflow of blood, especially when the leg muscles contract during movement. The suprasaphenic valve is located near the junction of the common femoral vein and the great saphenous vein, while the infrasaphenic valve is positioned further down the common femoral vein.

Understanding the specific locations and names of these valves is essential for sonographers in the field of phlebology, as they can influence venous return and play a role in conditions like venous insufficiency or varicose veins. Thus, recognizing the presence of suprasaphenic and infrasaphenic valves in the common femoral vein is vital for accurate assessment and diagnosis in sonographic evaluations.