How does the digestive process?
The digestive process begins in the mouth, where the teeth grind food. The masticated food, which is the bolus is swallowed, and into the stomach through the esophagus. In the stomach, the gastric juice dissolves certain foods, such as conjunctive fibers, and unfolded protein into simpler substances. The movements of the stomach makes the food mass, which is called chyme, passes into the intestine. Already here, the chyme is subjected to the action of three juice, duodenal, pancreatic and bladder, which makes it a very fluid substance called chyle. Villi that line the walls of the small intestine absorb food substances contained in the chyle. Nondigestible debris are expelled as feces.
How does food move the blood?
The fat, pass, in part, to the lymphatic vessels, and finally the blood stream. Instead, proteins, sugars and salts penetrate the capillaries and reach the portal vein, which leads to the liver.
What role does bacteria of the large intestine?
Attack the cellulose in plant foods , which is not altered by the digestive juices, and transform a small part of it into glucose equivalent.
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- Dialysis is a therapeutic procedure that allows the removal of excess toxins
- medicine/what-used-dialysis.htm
- What is the atom?
- In the fourth century BC the Greeks established that matter was made
- physics/what-is-the-atom.htm
- How did primitive man evolve?
- The first known human remains are those of Australopithecus, nearly 4.5 million
- history/how-did-primitive-man-evolve.htm
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- The beaches are extensions of the surface almost flat, with gentle slopes
- geography/how-are-the-beaches.htm
- What is hibernation?
- The hibernation is a state of lethargy that allows mammals to withstand
- biology/what-is-hibernation.htm