The collectors of the ventromedial bundle form a bottleneck behind the medial femoral condyle.

• A. Behind the patella
• B. True
• C. Behind the medial femoral condyle
• D. Behind the lateral femoral condyle

Answer: (C)

The main idea is that the lymphatic collectors in the ventromedial (medial) bundle travel medially and then pass through a narrow region behind the knee, where they form a bottleneck behind the medial femoral condyle as they switch from superficial to deeper drainage toward the popliteal and inguinal pathways. This behind-the-medial-condyle location is a key anatomical landmark for guiding manual lymph drainage, because it’s a convergence point where lymph flow can slow and be more readily assisted with gentle strokes toward the deeper channels.

Choosing a location behind the patella would place you at the front of the knee, not along the medial knee where these collectors pass. Behind the lateral femoral condyle is on the outer side of the knee and not where the ventromedial bundle’s bottleneck occurs. The option that simply says “true” doesn’t specify a location, so it doesn’t capture the specific anatomical point in question.