Submental Node Drainage — MFDS Part 1 MCQ

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EasyAnatomy (Head & Neck)Submental Node DrainageMFDS Part 1

The efferent lymphatics from the submental lymph nodes ultimately drain into which lymph node group?

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Correct answer: C — Deep cervical nodes

The correct answer is C. Efferent lymphatics from the submental nodes ultimately enter the deep cervical chain, including the jugulo-omohyoid nodes. The word “ultimately” is important: submandibular nodes are neighbouring level IB nodes and may be described as an intermediate route in simplified accounts, making option B potentially defensible in the original stem, but they are not the final cervical nodal group. Jugulodigastric nodes are upper deep cervical nodes particularly associated with tonsillar drainage; supraclavicular nodes lie at the inferior neck, parotid nodes principally receive lymph from lateral facial and scalp regions, and retropharyngeal nodes drain deeper nasal and pharyngeal structures.

Reference: Jin S, Zhang S, Jiao X. Applied anatomy of lymph drainage of lower lip mucosa. 1991. https://pubmed.ncbi.nlm.nih.gov/1748415/