Answer:
Find Explanation below.
Step-by-step explanation:
The alimentary canal also known as the gut comprises all the pathways followed by food from ingestion to expulsion from the body. Major organs involved include; the mouth, stomach, small intestine, large intestine, liver, pancreas, and anus.
- The mouth: When food enters the mouth, it is masticated by chewing with the teeth. The salivary glands produce saliva that help with breakdown of food. The food forms the bolus which is transported through the esophagus with the help of the epiglottis to the stomach. Peristaltic action which involves contraction of smooth muscles aid the downward movement of food.
- The stomach: The stomach secretes acids which destroys bacteria in the food and aids the breakdown of food.
- The Small Intestine: The food which is now chyme, goes through the pyloric sphincter and the duodenum. Bile in the liver breaks down fat. The villi aids in the assimilation of the nutrients to the blood stream.
- The Large Intestine: Water remaining from particles are reabsorbed. Waste is now ready for excretion.
- The Anus: Solid waste particles leave the body system through the anus.