Question:medium
Lymphatic drainage of the cervix is to the following lymph nodes, EXCEPT
Lymphatic drainage of the cervix is to the following lymph nodes, EXCEPT
Show Hint
The cervix drains through pelvic nodal groups; the inguinal nodes drain the vulva and lower vagina instead.
Updated On: Jul 7, 2026
- Parametrial lymph nodes
- Deep inguinal lymph nodes
- Obturator lymph nodes
- External iliac lymph nodes
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
This question checks whether we know the pelvic nodal stations that receive lymph from the cervix, as opposed to the groin stations that drain the external genitalia.
Step 2: Key Approach:
Separate the nodes into two groups, those that sit inside the pelvis close to the cervix's own blood supply, and those that sit outside the pelvis near the vulva and skin, then see which option falls in the wrong group.
Step 3: Detailed Explanation:
Parametrial nodes lie in the tissue right next to the cervix and are the first stop for its lymph. Obturator nodes and external iliac nodes both sit along the pelvic side wall vessels and are well known routes taken by cervical lymph, which is exactly why surgeons clear these nodes during radical hysterectomy for cervical cancer.
Deep inguinal nodes, on the other hand, belong to the groin and collect lymph from the vulva, the lower vagina, and the perineal skin, all structures below the pelvic floor. The cervix lies above the pelvic floor and its lymphatic channels do not normally travel down to this groin station.
Step 4: Final Answer:
Deep inguinal lymph nodes are the exception, since the cervix drains through pelvic nodes and not through the groin.
This question checks whether we know the pelvic nodal stations that receive lymph from the cervix, as opposed to the groin stations that drain the external genitalia.
Step 2: Key Approach:
Separate the nodes into two groups, those that sit inside the pelvis close to the cervix's own blood supply, and those that sit outside the pelvis near the vulva and skin, then see which option falls in the wrong group.
Step 3: Detailed Explanation:
Parametrial nodes lie in the tissue right next to the cervix and are the first stop for its lymph. Obturator nodes and external iliac nodes both sit along the pelvic side wall vessels and are well known routes taken by cervical lymph, which is exactly why surgeons clear these nodes during radical hysterectomy for cervical cancer.
Deep inguinal nodes, on the other hand, belong to the groin and collect lymph from the vulva, the lower vagina, and the perineal skin, all structures below the pelvic floor. The cervix lies above the pelvic floor and its lymphatic channels do not normally travel down to this groin station.
Step 4: Final Answer:
Deep inguinal lymph nodes are the exception, since the cervix drains through pelvic nodes and not through the groin.
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