Which lymph nodes are found in the armpit area?

Which lymph nodes are found in the armpit area?

• A. Mesenteric
• B. Axillary
• C. Inguinal
• D. Popliteal

Answer: (B)

Understanding where lymph nodes are located helps you map drainage patterns. In the armpit region, the lymph nodes present are the axillary lymph nodes. They filter lymph from the upper limb, chest wall, and the breast area, serving as a key site of immune surveillance for those regions. This is why swelling of axillary nodes is commonly linked to infections or pathology in the arm, chest, or breast. Other nearby nodes are named for their locations but aren’t in the armpit: mesenteric nodes in the abdomen along the intestinal mesentery; inguinal nodes in the groin that drain the lower trunk and legs; and popliteal nodes behind the knee.

Understanding where lymph nodes are located helps you map drainage patterns. In the armpit region, the lymph nodes present are the axillary lymph nodes. They filter lymph from the upper limb, chest wall, and the breast area, serving as a key site of immune surveillance for those regions. This is why swelling of axillary nodes is commonly linked to infections or pathology in the arm, chest, or breast.

Other nearby nodes are named for their locations but aren’t in the armpit: mesenteric nodes in the abdomen along the intestinal mesentery; inguinal nodes in the groin that drain the lower trunk and legs; and popliteal nodes behind the knee.