A body’s immune system protects it from diseases. The innate immune system is the first line of immune system defense of the body.
The immune system is tricky. At times it is overactive and starts to attack the body, and other times, it is too dormant, and is not capable of defending the invaders. Finding a balance between the two (talk about extreme!) depends on the functioning of the innate immune system. The innate immune system needs to be fine-tuned to know when it should be turned on and when to turn itself off so that it does not cause any collateral damage.
It may be important to manipulate the immune function. There could be a need to enhance it or suppress it. This rests on our ability to control the innate immune system and the adaptive immune system. There are two immune system types.
Innate immunity is a system that protects against any infection and gets activated as soon as there is any pathogen attack. The innate immune system is made of barriers that aim to keep the viruses, parasites, and bacteria or any foreign particles out from the body, not letting them spread through the body.
The innate immune system includes:
The innate immune system is not specific. It is always general or non-specific immunity, which means identifying non-self or foreign and targeting it. The presence of the antigens and their chemical properties activates the innate immune system.
An inflammatory response is very characteristic of the innate immune system. When the innate immune system misidentifies what it considers ‘dangerous’, it can cause inflammation at an almost fatal level. These are usually the causes of most allergic reactions!
1. What are the innate immune system and its function?
The innate or the nonspecific immune system is the defense system with which you were born. It functions to protect you from antigens. It involves barriers that do not let any foreign materials enter your body.
2. What are the components of the innate immune system?
The innate immune system is comprised of physical barriers, anatomical barriers, cellular and chemical barriers, blood proteins, and cells.
3. How does the innate immune system work?
The innate immune system is active right from the moment a child is born. It is inherited. When the innate immune system recognizes any invader, it immediately gets into action. The immune system cells surround and engulf the invader and kill the invader inside the immune system cells.
4. Who has an innate immune system?
The adaptive immune system, or the second line of defense, evolved some 500 million years back and is confined to vertebrates. The innate immune response is found in the vertebrae and invertebrates as well in the plants. It is present at birth and regulates the basic body mechanisms.
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