Digestive System Flashcards
(22 cards)
What is the order of digestion?
Mouth Oesophagus Stomach Small intestine Large intestine Anus
What is the mouth used for?
Food and saliva is mixed
Teeth break food into smaller pieces
What is the oesophagus for?
It carries food to the stomach
What is the stomach for?
A temporary food storage
Mix gastric juices with food
Has hydrochloride acid to kill germs
What is the small intestine for?
Makes enzymes
Where the nutrients are absorbed into your blood stream
What is the large intestine for?
Any remaining water, salts, vitamins and sugars are absorbed.
What is the anus for?
The faeces pass through here when you go to the toilet.
What is mechanical and chemical digestion?
Mechanical is physically breaking down food with your teeth
Chemical is enzymes breaking down food into small molecules
What is an alimentary canal?
It is the main digestive highway, it begins at the mouth and ends at the anus.
How do the teeth help with digestion?
They break food down into smaller pieces allowing it to be swallowed.
How does the oesophagus help digestion?
Your oesophagus pushes down the ‘bolus’ by contractions called peristalsis to your stomach.
How do the villi help with digestion?
Villi are shaped like fingers to increase surface area which increases efficiency of nutrition absorption.
How does the tongue help with digestion?
Your tongue rolls the chewed up food into a ball called ‘bolus’.
How does your gall bladder help with digestion?
Gall bladder makes bile for the small intestine to help digest lipids.
How does the pancreas help with digestion?
Enzymes (lipases,amylases and proteases) which break down lipids, carbs and proteins ar made by the pancreas
How does the liver help with digestion?
It’s main function is to process the nutrients absorbed by the small intestine.
Also that the gall bladder supplies the liver with bile to pass on to the small intestine.
What is the importance of peristalsis?
They are muscular contractions that move the food down the oesophagus.
What is ingestion?
Taking food into your body
What is absorption?
Absorbing the broken down foods into your cells.
What is assimilation?
Converting broken down food into chemicals in your cells.
What is egestion?
the process of discharging undigested or waste material from a cell or organism
What is digestion?
Involves the breaking down of food so that nutrients contained can be absorbed into your blood.
