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- Hi! My name is Mr. Carrot, and I'm going to take you on a tour through the digestive system today! First, as shown above, I enter the mouth or buccal cavity. The salivary glands begin pumping out saliva as soon as the tasty and wonderful meal enters your mouth. As you chew, saliva and I mix to break down large globules of food into little lumpscalled as BOLUS.
- The bolus then goes down the oesophagus, a long, slender tube. By peristaltic action, the oesophageal muscles compress the bolus down to the stomach, our next destination.
- Once in the stomach, hormones signals the stomach walls to produce acid, which dissolves the bolus into a liquid known as chyme. Hormones also tell the liver, gallbladder, and pancreas to begin producing bile juice.
- From there, I enter the small intestine. The liver sends bile to the gallbladder, which holds it until I arrive. Tiny projections called villi absorb my molecules and the leftover fiber, water, and dead cells enter the large intestine.
- Then I go via the colon or the large intestine. The majority of the fluid is drained from the colon by the dint of intestinal walls. This results in a mushy mass known as stool.
- The big intestine the, deposits me in a tiny pouch, where I am retained until I exit the body via the anus. After a 30- to 40-hour journey through the digestive system, the digestion process comes to a conclusion at the anus.
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