Disease, Science

Disease:

All of us, at one time or another, have suffered from fever, aches. vomiting, nausea. diarrhoea, flu, cold, general weaknessetc. Illness can arise from a number of factors,  sucn asfailure of some part of the machine, i.e. our body, or inheritance of some tendency or malfunction from the family, or problems due to aging or due to some infection etc. As you have learnt in the previous units, it can also be due to some deficiency or even lack of nourishment. You may be  familiar with the names of some of  the serious diseases  such as cancer, tuberculosis, typhoid etc. A recent addition to the deadly diseases is the one called AIDS in which the body  loses all natural power to fight a disease. We could say that a disease is a departure from the state of health. Any variation in  the normal structure or function of a tissue or an organ of  the body could mean disease. Doctors have various methods and instruments  to f!nd out if a person is suffering  from any disease These are :  

i) physical examination,  like testing of eyesight or hearing the sound of heart beats, or observing the movement of the limbs, 

ii)  biochemical tests performed on the tissues and fluids of the body, like testing if  there is sugar h  the urine or too much fat in  the blood, 

iii)  microscopic examination of the body fluids and/or excreta- the familiar examples are blood, and stool test etc., 

iv)  use of biophysical methods like X-rays,  to detect fractures of bones, or to examine  the condition  of the lungs, 

v)  surgery and other methods to locate diseased organs inside the body.  

Posted Date: 9/28/2012 7:47:48 AM | Location : United States







Related Discussions:- Disease, Assignment Help, Ask Question on Disease, Get Answer, Expert's Help, Disease Discussions

Write discussion on Disease
Your posts are moderated
Related Questions
Define the Adrenal Sex Hormone Secretion Regulated The secretion of adrenal androgens by the adrenal cortex is controlled by ACTH. In the discussion above, we have seen how a f

Laboratory Method of Soil textural classes The mechanical analysis methods have been used by USDA to develop a method for naming the textural class. This is depicted by a trian

Explain the Process of Respiration Respiration is the process which deals with the act of respiring or breathing, the act of taking in and giving out air, the aggregate of thos

How to make a devil diver (Cartesian diver) Find a tall glass jar with a quite wide mouth. Wrap a few turns of copper wire about the thin part of the rubber bulb from a medicin

Emergence of Urban Societies:  The writings of this period also give us a picture of  the social conditions. The social structure was undergoing radical changes at this time,

Water: We all know  that safe drinking water is essential for good health. Many of  the diseases in our country are  due to lack of supply of safe drinking water. ~nfortunatel~

Question 1: (a) Enumerate the five safety rules that you must observe at all times during boarding (b) Show the six elements of a GAR model of risk assessment. (c) What

Intrusion into the Nitrogen Cycle: Human intervention can disturb  the nitrogen cycle. Let us see how. When we grow and harvest crops. there is loss of  nitrogen from the soi

what is a chemical

Define the Sources of sound and their level of loudness Let us now have a look at Table, where the various sources of sound, their level of loudness and its comparison to the f