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by: RishabhThukral

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1 : Reasons Why do we fall ill?
2 : I want to wholeheartedly thank my Science Teacher Mrs. Baljeet Kaur, in whose mentorship I successfully accompanished this Presentation. Her Guidance played a key role in completion of this Presentation. ACKNOWLEDGEMENT
3 : Contents of this Presentation Significance of Health Diseases and its Causes Acute and Chronic Diseases Infectious and Non- Infectious Diseases Means of Spread Principles of Treatment Principles of Prevention Immunization and Vaccinations
4 : Significance of Health We realize that it always implies the idea of ‘being well’. We can think of this well-being as effective functioning. Being interested in following the teaching in classroom so that we can understand the world is called a ‘healthy attitude’. ‘Health is therefore a state of being well enough to function well physically, mentally and socially.
5 : Diseases and its causes When there is a disease, either the functioning or the appearance of one or more systems of the body will change for the worse. These changes give rise to symptoms and signs of disease. Signs of disease are what physicians look for on the basis of the symptoms.
6 : Acute and Chronic Diseases Acute Diseases Chronic Diseases Those diseases Those diseases which which exist only for are exist for long short term are termed term or lifetime are as Acute Diseases. termed as Chronic disease Like – Typhoid, Cholera Like – Cancer,AIDS
7 : Infectious and Non- Infectious Diseases INFECTIOUS AGENTS Some of the infectious agents are listed below SARS Virus Staphylococci Trypansoma Leishmania Adult Roundworm
8 : SARS Virus SARS Virus causes severe illness marked Initially by systematic Symptoms of muscle pain, Headache and fever, Followed in 2-10 days by the onset of respiratory symptoms.
9 : STAPHYLOCOCCI Staphylococci, the bacteria which Causes acne. The scale of the image is indicated by the line at the top left, which is five centimetres long
10 : TRYPANSOMA Trypansoma is the protozoan organism which is responsible for Sleeping sickness. The Organism is a saucer – shaped which gives the idea of its scale.
11 : LEISHMANIA Leishmania is the protozoan which causes Kala – Azar. The organisms Are oval shaped and each has One-long whip-life structure. One organism is dividing, while a cell of immune system has gripped On the two whips of the dividing organism and is sending cell processes up to eat up the organism. The immune cell is about ten micron in diameter.
12 : ADULT ROUNDWORM Adult Roundworm (Ascaris lumbricoides is the technical name) the Small intestines. This Organism causes infection in our digestive system. It is about four centimetres in scale.
13 : MEANS OF SPREAD Many microbal agents can commonly move from an affected person to someone else in variety of ways. Diseases causing microbes can spread through the air. This occurs through the little droplets thrown out by an infected person who sneezes or coughes. Examples of such diseases spread through the air are the common cold, pneumonia and tuberculosis. We all had the experience of sitting near someone suffering from a cold and catching it ourselves.
15 : Diseases can also be spread through water. This occurs if the excreta from someone suffering from an infectious gut disease, such as cholera, get mixed with the drinking water used by people living nearby.
16 : Principles of Treatment There are two ways to treat an infectious disease. One would be to reduce the effect of the disease and the other to kill the cause of the disease. We can provide treatment that will reduce the symptoms. How do we kill microbes? One way is to use medicines that kill microbes
17 : Principles of prevention There are two ways one general and one specific to each disease. For air-borne microbes, we can prevent exposure by providing living conditions that are not overcrowded. For water-borne microbes, we can prevent exposure by providing safe drinking water. This can be done by treating the water to kill any microbial contamination. For vector-borne infections, we can provide clean environments.
18 : Immunisation Vaccination would prevent any subsequent exposure to the infecting microbe from turning into actual disease. Vaccination is the type of preventive measure which gives us immunity against diseases

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