Home Products Agents/Centres Associates Contact


A | B | C | D | E | F | G | H | I | J | L | M | N | O

P | R | S | T | U | V

 

 

DIAGNOSIS

The process whereby a particular disease or condition is identified after consideration of the relevant parameters. vis.: symptoms, physical manifestations, results from laboratory tests and so on.  In many instances the diagnosis requires greater skills than does the  treatment.

 

DIAPHRAGM

A membrane of muscle and tendon that separates the thoracic and abdominal cavities.

 

 

 

 

DIGESTION

The process of breaking down food into substances that can be absorbed and used by the body, Digestion begins with the chewing and grinding of food at which point it is mixed with saliva to commence the process of breakdown.  Most digestion occurs in the stomach and small intestine.  In the stomach the food is subject to gastric juice, which contains pepsins to break down proteins and hydrochloric acid.  The food is mixed and becomes totally soluble before passing into the small intestine as chyme, where it is acted upon by pancreatic juice, bile, bacteria and intestinal juices.  Water is absorbed in the intestine in a very short time, while the bulk of the food may take several hours.  The chyme forms chyle due to the action of the bile and pancreatic juice.  Fats are removed from this in emulsion form into the lymph vessels and then into the blood.  Sugars, salts and amino acids move directly into the small blood vessels in the intestine and the whole process is promoted by micro-folding of the intestinal wall producing finger-like projections (villi).  The food passes down the intestine due to muscle contractions of the intestine wall and ultimately the residue and waste are secreted.

 

 

Disclaimers, Security

Copyright 2001 Global Health Mall Inc. & its Subsidiaries. All Rights Reserved.


Site designed by Nu Dezign, hosted by Nettworx