The Digestive System

Consists of
1. Organs off the digestive tract
  1. Liver
    1. The largest internal organ and produces bile which acts in a similar way to dishwashing liquid by breaking down fats and oils.
  2. Pancreas
    1. It is not part of the digestive tract but produces pancreatic juices that break down carbohydrates, fats and proteins.
2. Digestive tract
  1. Oesophagus
    1. Is a long muscular tube that has the mouth at one end and the stomach at the other end.
  2. Stomach
    1. Food is stored in the stomach for 1-6 hours and is moved around mechanically and is mixed with gastric juice.
  3. Duodenum
    1. Duodenum have a muscular walls that continue to squeeze and churn the food , breaking it down and making sure that the digestive chemicals are mixed through.
  4. Small intestine
    1. It is a very long tube up to 6 metres long and here the digested food is absorbed into the body
  5. Mouth
    1. Biting and chewing is a form of mechanical digestion, but chemical digestion also takes place in the mouth as the food is mixed with saliva.
  6. Large intestine
    1. Is the part of the digestive system in which the food you eat are processed into faeces.It is wide and that is where it got its name from.
Digestion
1. Mechanical
  1. Happens when you tear and chew food with your teeth
2. Chemical
  1. Happens when saliva in your mouth and gastric juice in your stomach break down food

Resource summary

	Created by Ahmed Almohammed about 8 years ago