Where are the popliteal lymph nodes located?

Where are the popliteal lymph nodes located?

• A. Neck
• B. Armpit
• C. Groin
• D. Behind the knee

Answer: (D)

Popliteal lymph nodes sit in the popliteal fossa, behind the knee. The name itself points to this location, in a shallow hollow at the back of the knee where they reside among surrounding muscles and vessels. They drain lymph from the lower leg, especially the posterior calf and parts of the foot, and their lymph flows onward to deeper lymphatic centers. This contrasts with lymph nodes in the neck, armpit, or groin, which drain regions of the head/neck, upper limb, and lower limb respectively. Swelling in these nodes often reflects infection or injury in the areas they drain, and they’re located relatively deep behind the knee, which can make them harder to feel than nodes in other regions.

Popliteal lymph nodes sit in the popliteal fossa, behind the knee. The name itself points to this location, in a shallow hollow at the back of the knee where they reside among surrounding muscles and vessels. They drain lymph from the lower leg, especially the posterior calf and parts of the foot, and their lymph flows onward to deeper lymphatic centers. This contrasts with lymph nodes in the neck, armpit, or groin, which drain regions of the head/neck, upper limb, and lower limb respectively. Swelling in these nodes often reflects infection or injury in the areas they drain, and they’re located relatively deep behind the knee, which can make them harder to feel than nodes in other regions.