Mouth, Nose and Ears Flashcards
What are the parts that the oral cavity is divided into
The oral vestibule and oral cavity proper
The slit like space b/w the lips and cheeks superficially and the teeth and gingivae deeply
Oral vestibule
Mobile fleshy muscular folds surrounding the mouth, contain the orbicularis oris and superior and inferior labial muscles, vessels and nerves
Lips
Vertical groove of the upper lip
Philtrum
The transition zone b/w skin and mucous membrane
Vermillion border
Lymph from the upper lip and lateral parts of the lower lip passes primarily to
Submandibular LNs
Lymph from the medial part of the lower lip passes initially to the
Submental LNs
This palate is formed by the palatine processes of the maxillae and horizontal plates of the palatine bones
Hard palate
What 3 foramina open on the oral aspect of the hard palate
Incisive fossa, the greater and lesser palatine foramina.
The moveable posterior third of the palate that is suspended from the posterior border of the hard palate
Soft palate
What are the functions of the salivary glands?
Keep the mucous membrane of the mouth moist, lubricates the food during mastication, begins digestion of starches, serves as an intrinsic “mouthwash” and plays a significant role in the prevention of tooth decay and in the ability to taste