GENERAL HISTOLOGY

Detailed explanation-1: -The mucous membrane that lines the structures within the oral cavity limits is known as oral mucosa. This is a wet soft tissue membrane that extends from the junction between the vermilion border of the lips and labial mucosa anteriorly to the palatopharyngeal folds posteriorly.

Detailed explanation-2: -It arises from the posterior nasal spine and the palatine aponeurosis. It inserts into the mucous membrane of the uvula. It is innervated by the pharyngeal branches of the vagus nerve (CN X) after motor fibres have been relayed via the cranial accessory nerve (CN XI). Its action is to shape the uvula.