Essay on significance of immune system 300to 350 words English
Answers
Explanation:
When your immune system is in tip-top condition, you probably don’t even notice it working away to protect you around the clock. However you’ll know when there’s something wrong as your immune system is your body’s in-built defence system against illness and infection. If you feel good today, thank your immune system (and give yourself a pat on the back for looking after it!)
A robust and properly functioning immune system helps you go about daily life as you come into contact with germs and bugs from pets, other people, and your environment. Without a healthy immune system, you could pick up infections and infectious diseases more easily, and the effects could be serious – even fatal.
Your body’s first line of defence is its physical barriers. If viruses and bacteria manage to break through, there are specialised cells that will jump into action. Your bloodstream and key areas of your body contain white blood cells that can fight and destroy the viruses and bacteria they find.
Sometimes, our immune system can over react and even attack your body’s own cells. This is what happens in the case of allergies like hay fever and autoimmune diseases. It’s why donated blood and organs must be very careful matched.
It’s easy to take the immune system for granted because it does such a good job at keeping us free from infection around the clock! If you’ve got a healthy immune system, look after it and it will look after you.
the immune system in our body is responsible for the prevention of infections and diseases
Explanation:
- White blood cells in our bodies fight the bacterial and viral infections.
- Bacteria and viruses invade our body and make us terribly sick.
- The white blood cells consist of proteins called antibodies that mark bacteria for destruction. The anti-bodies are specific for specific disease-causing microbes.
- Phagocytosis is the process by which the anti-bodies 'eat' or destroy the bacteria that are harmful for human body.
- The white blood cells form the first line of defence when a bacterial infection strikes.
- White blood cells are of two types lymphocytes and leukocytes.The leukocytes are produced in the bone marrow.
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white blood cells,
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