Digestion starts in the mouth., Food is broken down by the teeth., Food is chewed and mixed with saliva., Mechanical and Chemical digestion take place in the mouth., Soft food and saliva become bolus., The pharynx opens for the bolus to move down the oesophagus. , The bolus is mixed with gastric juices in the stomach., The liver sends bile to the stomach necessary for digesting fats., The bolus is mixed with gastric juices and enzymes to form chyme., Digestion in the stomach is 3 - 4 hours long., The chyme moves to the small intestine., In the small intestine the nutrients pass to the blood., Next in the large intestine the water and minerals are absorbed., The waste moves and is stored in the rectum., Waste leaves the body through the anus. ,

Digestion - The process

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?