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Digestive System

Functions of the Digestive System

What are the three main things that humans need to survive? Water, Food and Oxygen
What are the 5 nutrients that are provided by food? Carbohydrates, Proteins, Lipids, Vitamins and Minerals
What are carbohydrates? Large Carbon Components that are the key fuel source for exercise.
What are proteins? Large Molecules made up amino acids. They build, maintain and replaced damaged tissues
What are lipids? Another word for fat. Fat is a component in food.
What is the function of the esophagus? Moves food from the throat to the stomach by contractions.
What is the function of the stomach? Stores the food and breaks it down with enzymes.
What is the function of the small intestine? The nutrients pass through the villi and goes into the bloodstream.
What is the function of the large intestine? To absorb nutrients, get rid of excess water and to get rid of the waste.
What is the function of the rectum? Short-term storage which holds faeces.
What is the function of the liver? Affects the digestive system by producing bile.
What is the function of the gall bladder? To store bile from the liver and release it into the small intestine.
What is bile? An alkaline fluid that aids in the digestion of fat and filters out toxins and wastes.
What is the function of the anus? Releases the faeces as waste.
What is the function of the pancreas? Makes chemicals that are used in the small intestines.
What is the function of teeth? They are used to bite and chew pieces of food into smaller pieces.
What is the function of the tongue? Rolls food into a bolus and pushes it to the back of the throat where it is then swallowed.
What is the digestive system? The process in which nutrients are extracted from the food that we eat.
What are the two types of digestion? Mechanical and Chemical.
What is mechanical digestion? When food is physically broken down.
An example of mechanical digestion is... Teeth biting and chewing food in the mouth
What is chemical digestion? When food is broken down through the excretion of fluids which trigger chemical reactions.
An example of chemical digestion is... In the stomach and the small intestines
What are enzymes? They are special chemical proteins which interact with the food we eat and split it into smaller pieces.
What is the function of villi? They aid with the extraction of the nutrients broken down in digestion. They transport the nutrients into the blood.
What are villi? They are finger-like projections of tissue that line the walls of the small and large intestines.
Created by: clairew_