The immune system is intricate and is broken down into two groups: innate immunity, or nonspecific immunity, which involves the activation and participation of pre-existing mechanisms like the natural barriers (skin and mucosa), as well as secretions; and adaptive immunity, or specific immunity, which is directed against a previously identified specific microorganism or antigen.
The body's initial line of defense against pathogens entering the body is the innate immune system. It is also referred to as the "nonspecific" immune system since it reacts uniformly to all pathogens and foreign chemicals. It responds very fast, for example, ensuring that germs that have entered the skin through a minor wound are found and eliminated immediately within a few hours of their entry. However, the innate immune system has little ability to prevent the spread of infection.
the components of the innate immune system
Skin and mucous membranes provide protection
Immune system cells (defense cells) and proteins provide protection.
If the innate immune system is unable to eliminate the germs, the adaptive immune system takes over. It targets the specific kind of bacteria that is causing the infection. However, it must first recognize the germ in order to do that. This indicates that while it takes longer to react than the innate immune system, it is more precise when it does. Additionally, it has the benefit of "remembering" germs so that the adaptive immune system can react more quickly the next time a known germ is met. Because your body develops "immune" subsequently, some illnesses are only contagious once in a lifetime because of this memory. The adaptive immune system may not fully activate for a few days.
Above all mentioned are the features of the Innate immune system and the adaptive immune system.
Know how immune system save us from diseases:
https://brainly.com/question/6612564
#SPJ4
