# The opening of submandibular gland duct into oral cavity is at:
A. Maxillary Second molar
B. Mandibular third molar
C. Dorsum of tongue
D. Sublinugual caruncle
The correct answer is D. Sublingual caruncle.
Submandibular duct or Warthin's duct is 5 cm long, emerges from submandibular gland and in its course runs on the hyoglossus between lingual and hypoglossal nerve and opens at the sublingual papilla at the side of frenum of tongue.
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