explain the process of digestive system
Answers
The digestive system ingests and digests food, absorbs released nutrients, and excretes food components that are indigestible. The six activities involved in this process are ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation.
Question:
Explain the process of digestive system.
Answer:
The digestion process takes place in the following steps:
1. Ingestion:
The very first step involves mastication (chewing).
The salivary glands, along with the tongue, helps to moisten and lubricate food, before being pushed down into the food pipe.
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2. Mixing and Movement:
It involves the process of lubricating and manipulating food and pushing it down the food through the food pipe (using peristalsis), and into the stomach.
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3. Secretion:
The stomach, small intestine, liver, d, ,Z pancreas secrete enzymes and acids to aid the process of digestion. It functions by breaking down food particles into simple components and easily absorbable components.
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4. Digestion:
The process of converting complex food particles into simpler substances in the presence of enzymes and acids secreted by different digestive organs.
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5. Absorption:
This process begins in the small intestine where most of the nutrients and minerals are absorbed.
The excess water in the indigestible matter is absorbed by the large intestines.
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6. Excretion:
The process of removing indigestible substances and waste by-products from the body through the process of defecation.
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