GENERAL ANATOMY
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Our teeth start the process by chewing and grinding up each mouthful of food.
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The tongue works it into a ball-shaped mass, or bolus, for swallowing.
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Saliva uses specialized proteins called enzymes.
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It is sealed in the stomach by two ringlike sphincter muscles for several hours.
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Detailed explanation-1: -Digestion involves mixing food with digestive juices, moving it through the digestive tract, and breaking down large molecules of food into smaller molecules. Digestion begins in the mouth, when you chew and swallow, and is completed in the small intestine.
Detailed explanation-2: -The digestive system breaks down the food we eat into tiny parts to give us fuel and the nutrients we need to live.
Detailed explanation-3: -Peristalsis Is the Contraction of Muscle Tissue That Helps Move and Break Down Foodstuffs. The walls of the alimentary canal include layers of smooth muscle controlled by the autonomic nervous system. Alternating contraction and relaxation of these muscles is called peristalsis.
Detailed explanation-4: -Mouth. The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.