Introduction to Nutrition _ Digestive system Part I

 Dear students,

OUR DIGESTIVE SYSTEM

We eat to get the nutrients that our bodies need to live and grow. Our digestive system takes these substances from the food we eat.

What is the process of the digestive system? 

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)  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.

1.      6) Large intestine: the undigested food passes into the large intestine. Water is absorbed into the body leaving waste called faeces.

1.   7) Rectum: finally, the faeces pass through the rectum and leave the body through the anus.

Click to watch the "Digestive system" Video I

Click to watch "Digestive system" Video II

PLease, review the process of the digestive system. Why all the steps and organs are important in the process?