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Submandibular Gland Deep Part — MFDS Part 1 MCQ

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ModerateAnatomy (Head & Neck)Submandibular Gland Deep PartMFDS Part 1

The superficial and deep parts of the submandibular gland are continuous around the posterior free border of which muscle?

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Correct answer: D — Mylohyoid

The correct answer is D, mylohyoid. Most of the submandibular gland forms its superficial part in the submandibular triangle, inferior to the mylohyoid. Glandular tissue passes around the muscle’s posterior free border to form the deep part in the floor of the mouth; the two parts are therefore continuous at this point. The geniohyoid lies superior to the mylohyoid near the midline but is not the structure around which the gland turns. The deep part lies lateral to hyoglossus rather than wrapping around its posterior border. The anterior belly of digastric helps bound the submandibular triangle, while stylohyoid is a more posterior suprahyoid muscle; neither separates the gland’s two parts.

Reference: NHS Severn Deanery, Core Training: Clinical Anatomy and Physiology — Head and Neck Objectives, 2012, https://surgery.severndeanery.nhs.uk/assets/Uploads/head-neck-objectives2.pdf