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Give the four functions of the digestive system and explain each.
ingestion, digestion, absorption, elimination
What are the parts of the alimentary canal?
mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectume, anus
What are the accessory organs? Give their functions.
salivary glands, liver, gallbladder, pancreas
Differentiate mechanical digestion from chemical digestion. Give examples.
Mechanical digestion is the physical breakdown of food, while chemical digestion break down food into simpler nutrients that can be used by the cells.
In the digestive process, what happens in the mouth?
Digestion begins in the mouth with the help of the teeth, tongue, and salivary glands.
In the digestive process, what happens in the esophagus?
It transports bolus from mouth to the stomach through peristalsis.
In the digestive process, what happens in the stomach?
It digests and temporarily stores food.
In the digestive process, what happens in the small intestine?
The folds in the lining of the small intestine called villi absorb the food nutrients.
In the digestive process, what happens in the large intestine?
Water and salts are reabsorbed leaving the undigested material.
What is the function of rectum?
It serves as a storage site of feces before it is eliminated through a muscular opening called anus.
Give three disorders of the digestive system and explain each.
Diarrhea, Constipation, GERD, Gallstones, Peptic ulcer, Colorectal cancer
Give four ways on how you can take care of your digestive system.
Proper nutrition, Proper hygiene, Health habits, Regular Exercise
