MEDICAL
RECTUM AND ANUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Teeth
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Tongue
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Saliva
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Nose
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Detailed explanation-1: -Saliva also has a special chemical, called an enzyme, which starts breaking down carbohydrates into sugars. Once swallowed, muscular contractions of the oesophagus massage the ball of food down into the stomach.
Detailed explanation-2: -Your teeth are part of your digestive system. They break down foods by crushing or cutting them before you swallow. Most humans have 32 teeth, although some have more and some have fewer. Enamel (the protective outer layer of your teeth) is the hardest substance in the human body.
Detailed explanation-3: -Oral Cavity. The oral cavity, or mouth, is the point of entry of food into the digestive system. The food is broken into smaller particles by mastication, the chewing action of the teeth.