Complete the flow chart indicating the path of food through the digestive tract
Answers
Answer : Mouth > Oesophagus > Stomach > Duodenum > Small Intestine > Large Intestine > Rectum > Anus .
Answer:
Mouth ⇒ Oesophagus ⇒ Stomach ⇒ Small Intestine ⇒ Large Intestine ⇒ Anus.
Explanation:
The digestion begins in the mouth, the food is broken down into small pieces and the salivary gland aids in this process.
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The smaller food pieces enter the oesophagus, with the help of a process called peristalsis, the food is pushed into the stomach.
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Once the food reaches the stomach, it is churned well and converted into chyme. The HCl present in the stomach along with the enzymes like gastric amylase, pepsin, etc help in breaking down macromolecules in the food. The chyme produced is further pushed into the small intestine.
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Once the chyme enters the small intestine, the pancreas and gall bladder release their digestive enzyme thereby further breaking the large macromolecules into their building block. The nutrients are absorbed and entered into the bloodstream and are used as required.
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The remnants of the food enter the large intestine and the water present is reabsorbed leaving solid waste.
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This solid waste is passed to the rectum and through the process of egestion, it is released from the anus in form of feces.