Question

Where does lymph from the ductus deferens drain?

A) Para-aortic lymph nodes
B) External iliac lymph nodes
C) Inguinal lymph nodes
D) Pre-aortic lymph nodes

Answer 1

Lymph from the ductus deferens primarily drains into the external iliac lymph nodes and may eventually continue to common iliac or para-aortic lymph nodes.

Step-by-step explanation:

The lymph from the ductus deferens primarily drains into the external iliac lymph nodes. This is because the ductus deferens, which transports sperm from the epididymis to the ejaculatory ducts during ejaculation, passes through the inguinal canal and enters the pelvic cavity. The primary area of lymphatic drainage for the pelvic organs is through the external iliac lymph nodes, which are situated along the external iliac artery. After filtration through these nodes, lymph continues its flow and may eventually drain into the common iliac or even the para-aortic lymph nodes further up the lymphatic system.