# The base of the submental triangle is formed by:
A. Chin
B. Anterior belly of digastric
C. Posterior belly of digastric
D. Hyoid bone
The correct answer is D. Hyoid bone.
Submental triangle is a median triangle. On each side, there is the anterior belly of the corresponding digastric muscles. Its base is formed by the body of the hyoid bone. Its apex lies at the chin. The floor of the triangle is formed by the right and left mylohyoid muscles and the median raphe uniting them.
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