Lymph drainage area inferior to pectinate line drains to which nodal group?

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Multiple Choice

Lymph drainage area inferior to pectinate line drains to which nodal group?

Explanation:
The boundary at the pectinate line divides lymphatic drainage patterns in the anal canal. Inferior to that line, the tissue behaves like skin and mucosa derived from ectoderm, so its lymphatics travel to the superficial inguinal nodes along the perineal region. This contrasts with the area above the line, which drains to pelvic nodes such as the internal iliac. Therefore, the lymphatic drainage area inferior to the pectinate line goes to the superficial inguinal lymph nodes.

The boundary at the pectinate line divides lymphatic drainage patterns in the anal canal. Inferior to that line, the tissue behaves like skin and mucosa derived from ectoderm, so its lymphatics travel to the superficial inguinal nodes along the perineal region. This contrasts with the area above the line, which drains to pelvic nodes such as the internal iliac. Therefore, the lymphatic drainage area inferior to the pectinate line goes to the superficial inguinal lymph nodes.

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