Salivary glands open into the mouth via ducts. Name the ducts for each of the gland and the region into which each opens.

Parotid duct ( Stenson duct) - connects the parotid gland to buccal mucosa, adjuscent to maxillary second molar

Sub mandibular duct ( Wharton duct )- connects the submandibular gland to the floor of mouth

Duct of Rivinus - The sublingual gland drains through numerous small ducts all of which open into the floor of the mouth and are collectively called Rivinus ducts