Monday 9 November 2015

DIGESTIVE SYSTEM

Our digestive system takes nutrients and vitamins from the food we eat.
1.- Mouth: digestion starts in the mouth. The teeth crush the food and then mix it with saliva.
2.- Esophagus: the food travels down the esophagus to the stomach.
3.- Stomach: in the stomach, the food mixes with gastric juices.
4.- Liver: the liver produces a liquid called bile that helps break down food.
5.- Small intestine: the food goes into the small intestine. Here it mixes with bile from the liver. Nutrients are absorbed here and they pass into the blood.
6.- Large intestine: the undigested food passes into the large intestine. There it's transformed into faeces.
7.- Rectum: finally, the faeces pass through the rectum and leave the body through the anus.

Food is digested in three stages:
  1. Digestion. The mouth, esophagus and stomach all help our body digest the food we eat.
  2. Absorption. The small intestine absorbs the nutrients from the food. From the small intestine the nutrients go into your blood.
  3. Elimination. The large intestine and rectum transform the undigestes solids into faeces.

http://www.educaplay.com/es/recursoseducativos/2161260/digestive_system.htm

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