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The epiglottis in the Oral Cavity
The downward projection in the oral cavity that triggers the swallow reflex when it receives contact is the epiglottis. It functions to cover the trachea during swallowing to prevent food or liquid from entering the airway.
The oral cavity is another name for the mouth.
There are several different organs to the respiratory system. These include the lungs, bronchus, larynx, oral cavity, nostrils, trachea, esophagus, epiglottis, pharynx, soft palate, hard palate, nasal cavity, and frontal sinus.
This chamber is called the oral cavity. Actually the entire space that the tongue and teeth are in is the oral cavity.
The oral cavity
palate
Oral Cavity
oral cavity and stomach
Down, the flap that I think you're referring to is the epiglottis which closes of your respiratory airway when you swallow so food is directed down the esophagus instead.
The two cavities separated by the roof of the mouth are the nasal cavity above and the oral cavity below. The nasal cavity is responsible for breathing and olfaction, while the oral cavity is used for mastication, swallowing, and speech.
The lateral walls of the oral cavity are formed by the cheeks, which are composed mainly of muscles, connective tissue, and skin. These walls help maintain the shape of the oral cavity and assist in functions such as speech and chewing.