Digestive system Flashcards
Mouths function
Physically breaks down food into smaller pieces
Salivary glands function
Produce saliva that contains enzymes
Oesophagus function
The tube that food travels down on its way to the stomach
Stomachs function
Organ were food is churned with digestive juices containing enzymes and acids
Livers function
Releases bile into the small intestine where it helps to digest fats
Pancreases function
Organ that makes and releases digestive juices containing enzymes to break down food
Small intestines function
Organ where small digested molecules are absorbed into the bloodstream
Large intestine function
Organ where water passes back into the body leaving solid waste
Rectum function
Faeces are stored here before being passed out of the body
Anus function
Muscular ring through which faeces pass out of the body
What are carbohydrates broken down into (enzymes)
Amylase, sucrase-isomaltase, maltase, lactase down to sugar
What are proteins broken down into (enzymes)
Pensin, trypsin, peptidase down to amino acids
What are fats broken down into (enzymes)
Lipase down to fatty acids
Where is amylase found in the body?
Salivary glands, pancreas, small intestine
Where is lipase found in the body?
Stomach, pancreas, small intestine
Where is protease found in the body?
Stomach, pancreas, small intestine
How is the small intestine adapted to do its job
- Wall is covered in villi
- High surface area because of the villi
- Villi contain lots of blood capillaries to carry food molecules which increases the concentration gradient (good blood supply)
- These adaptations increase the rate if absorbsion
The order that food passes through the digestive system in
Mouth, oesophagus, stomach, small intestine, large intestine, rectum, anus
Where is bile produced?
Liver
