Digestive System

What is the digestive system?
The digestive system is the set of organs responsible for the process of digestion, ie the transformation of food so that they can be absorbed and used by the body's cells.

Parts



The main parts

Functions
The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two main parts: The digestive tract is a continuous tube with two openings: the mouth and the anus. Food that passes through the internal cavity, or lumen, of the digestive tract does not technically enter the body until it is absorbed through the walls of the digestive tract and into the blood or lymphatic vessels. 

Relationship between systems
Is related with the circulatory sistem
The relationship between digestion and circulation is that the substances absorbed by the walls of the small intestine are carried by the blood to the liver and the blood vessels that communicate with the small intestine and other abdominal organs with the liver are called "circulation portal hempatica ".
                
Fun Facts

1. The detergent and the digestive system have in common that both contain proteases, amylases and lipases. In the digestive system, and as the name suggests, proteases are responsible for breaking proteins; amylases take care of carbohydrates and lipases, of fats.
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The characteristics of the stomach vary from species to species. In fact, there are animals whose stomachs have several compartments; this is the case of cows, Giraffes and deer. On the other hand, there are other living beings (such as seahorses and platypus) that lack this organ, and the food they eat goes directly from the esophagus to the intestines.     

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