Digestive System Flashcards
What happens in ingestion?
What organs are involved?
Food is taken in through the mouth
Mouth
What happens in digestion?
What organs are involved
The food is broken down into soluble substances.
Small intestine
What happens in the process of absorption?
What organs are involved?
The soluble substances are absorbed into the bloodstream and transported around the body.
Ileum
What happens in the process of assimilation?
What organs are involved?
The soluble products of digestion are taken into cells where they are used
Small intestine,every cell in the body
What happens in the process of egestion?
What organs are involved?
Removal of waste
Anus
Where does mechanical digestion happen?
The mouth and stomach
Where does chemical ingestion happen?
The mouth and stomach
What happens during mechanical digestion?
Our teeth cut and grind the food into smaller pieces
This increases they surface area
The muscular walks of the stomach churn the food
What happens during chemical digestion?
Starts in the mouth and continues to the stomach and small intestine.
It breaks up the large molecules into smaller molecules
Enzymes speed up the chemical reactions and are responsible for chemical digestion\
What happens in the…
mouth
Food is chewed
Saliva contains amylase to digest carbohydrates
What happens in the…
Colon
Water is absorbed
What happens in the…
Rectum
Faeces are stored
What happens in the…
Eosophagus
Muscular tube that pushes food as long by peristalsis
What happens in the…
Stomach
Mechanical and chemical digestion occurs here
Acid kills the bacteria
What happens in the…
Ileum
Absorption occurs. It’s is long, folded and has vili
