Our Immune System

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4 years ago

In the time of Covid19, you must be knowledgeable enough in our IMMUNE SYSTEM.

A second, specific defense system called immunity is much more selective in its targets. It operates against particular enemies that are identified and remembered by the immune system cells involved. if the enemies return the response is immediate.

The assault troops of specific immunity are white blood cells known as lymphocytes. There are two brigades of these troops, the so-called B cells, and T cells, and their battle tactics are quite different. The spearhead of the T cell brigade, the Killer T cells, are close-quarter fighters: they lock on to the enemy, sometimes a cell invaded by a virus, and secrete chemicals to destroy it. They are primed to recognize the antigen or chemical characteristics of the invader. Having attached to the enemy, they emit other substances that summon other T cells and macrophages to the attack.

B cells standoff and fight the invader with antibodies, proteins that exactly complement the chemical structure of the invading antigen. The antibodies combine with the antigen and initiate its destruction. Each B cell can secrete about 2000 antibodies per second.

A certain type of both B cells and T cells remembers any antigen after an initial encounter. If the same organism invades a second time these cells initiate a much swifter reaction than on the first occasion. This process can confer lifetime natural immunity to some diseases, such as measles.

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4 years ago

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I did not know, about those two types of cells. Our body, has all what is needed. We just have to keep the immune system strong.

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4 years ago

And stay healthy as well. Our health is very important, especially during a pandemic.

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4 years ago

The immune system protects your child's body from outside invaders, such as bacteria, viruses, fungi, and toxins (chemicals produced by microbes). It is made up of different organs, cells, and proteins that work together. There are two main parts of the immune system: The innate immune system, which you are born with.

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4 years ago

Yeah, you're right. But keep in mind that immune system not only protects children, but also adults.

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4 years ago

asthmatics like me are high risk this pandemic. we really need to boost our immune system

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4 years ago

oww, you should be taking care of yourself more.

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4 years ago

Exaclty ! I am now strictly monitoring myself and also taking in multivitamins and healthy foods balanced with exercise and walking or hiking. ;)

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4 years ago