Digestive tract

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digestive tract or gastro-intestinal is the system of bodies of the pluricellular animals which takes food, digests it to extract some from energy and the nutrients, and evacuates the surplus.

The digestive tract substantially varies from one animal species to another. For example, certain animals have stomachs with several rooms.

On the level , the digestive tract consists of several embryonic layers : the mouth and the anus are of origin ectodermal, whereas the remainder of the tube is of origin endodermal.

Synopsis 1 Basic anatomy of the human food channel 2 The process of digestion and the excretion 3 Your digestive system and its mode of action 3.1 Importance of digestion 3.2 How food is digested 3.3 Movements of food through the digestive system 3.4 Production of gastric juices 3.5 Absorption and transport of nutrients 3.5.1 Carbohydrates 3.5.2 Proteins 3.5.3 Greases 3.5.4 Vitamins 3.5.5 Water and salts 3.6 Control digestive processes 3.6.1 Hormonal regulators 3.6.2 Nervous regulators 3.7 Specialization of the bodies 4 Other uses of the bowels 5 Reference 6 External bond

Basic anatomy of the human food channel

At an adult normal man of male sex, the digestive tract is approximately 7,5 m long and includes/understands the following components:

At the human ones, the digestive tract is consisted of , of, of, of, of the large intestine or colon and of . It forms part ofdigestive system.

• (oral cabity; includes/understands them salivary glands, them mucous membranes oral, them and )
• and cardia
• , which includes itcave and it pylore
• Intestines:
  • , which has three parts:
    • jejunum
    • iléon, the iléon joined the cæcum with junction iléocæcale
  • Large intestine or colon, which has three parts:
    • cæcum. appendix is a rudimentary body, remainder of the evolution, attache with cæcum.
    • Colon who includes/understands:
      • ascending colon
      • transverse colon
      • downward colon and sigmoid
    • , ending in

The liver secret of in the small intestine via gall bladder and it biliary system. secret an Iso-osmotic liquid containing of bicarbonate and various enzymes, among which trypsin, of chymotrypsine, of lipase, and ofamylase pancreatic, as well as nucleolytic enzymes, in the small intestine.

All these bodies secréteurs assist . The dariotype is the center of the digestive system.

The process of digestion and the excretion

See also the whole article .

See too body, , abdominal cavity -->

Your digestive system and its mode of action

Importance of digestion

How food is digested

Movements of food through the digestive system

Production of gastric juices

Absorption and transport of nutrients

Carbohydrates

Proteins

Graisses

Vitamins

Water and salts

Control digestive processes

Hormonal regulators

• gastrine
• secretin
• cholécystokinine (CCK)

Nervous regulators

Specialization of the bodies

Other uses of the bowels

Reference

• National Institute of Diabetes and Digestive and Kidney Diseases, .

External bond

• Anatomical atlas of the digestive system

Digestive system

- - - - - Gall bladder - - (, jejunum, iléon) - - Appendix iléo-cæcal - Cæcum - -