Digestive HBS Donovan - Donovan Zavala Oral Cavity Pharynx Salivary Glands Tongue and Teeth \u25cf The oral cavity is the first part of the digestive tract

Digestive HBS Donovan - Donovan Zavala Oral Cavity Pharynx...

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Donovan Zavala Oral Cavity, Pharynx, Salivary Glands, Tongue, and Teeth The oral cavity is the first part of the digestive tract. It contains the mouth, teeth, gums, the bony roof, the floor of the mouth, and cheeks. The main function is to begin the process of digestion. It receives and chews food, and mixes it with saliva to begin the swallowing process. The function of the salivary glands is to produce saliva which begins the breaking down of the food chemically and moistening it to make it easier to swallow. The salivary amylase is responsible for breaking down the carbohydrates. To move food in the mouth, swallowing and chewing. It also contains thousands of taste buds which are nerve-like cells that connects into the brain which transmits taste signals. Small rounded mass of chewed food at the moment of swallowing. Both palate are located in the roof of the mouth. The hard palate is in the anterior part and the soft palate is at the back part of the mouth. The hard palate holds the roots of the teeth and helps with mastication. When food is swallowed, the soft palate rises up and blocks off the entrance to the rear nasal passage. It also helps pushing the food making it easier to swallow. The chemical digestion occurs when the enzyme in the saliva breaks down carbohydrates. While the teeth breaks down the food mechanically through masticating.
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  • Fall '19
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