The Innate And Adaptive Immune System

What role does the immune system play in keeping the body safe? Please be very specific [9 pts]

The immune system plays a vital role in helping the body to fight diseases, as well as pathogens, the disease-causing factors. It is mainly composed of the tonsils and adenoids, the lymph nodes and lymphatic vessels, the spleen, appendix, and bone marrow. The main purpose of the immune system is to assist the body in its struggle to maintain optimal health.

The innate immune system is effective to a certain degree. That said, if the environment is regulated then the body is less likely to get ill. Innate immunity is effective as once the patient matures his immune system will mature due to the B and T memory cells. The memory cells will help the body prepare for the virus once it has arrived. The memory cells will send specialised lymph nodes to the invading pathogen. The B and T memory cells are key to immunity of a virus.

Innate immunity refers to nonspecific defense mechanisms that come into play immediately or within hours of an antigen's appearance in the body. Adaptive immunity refers to antigen-specific immune response.

The body’s protection against viruses, bacteria and other types of invasions is our immune system (Tortora, 2014).

The innate and adaptive immune response start with exposure to an antigen in the epithelium of

Innate Immune System – Nonspecific and abrupt first response; comprised of epithelial surfaces (physical barriers), neutrophils, and macrophages.

Adaptive immunity (p.446): The body’s ability to recognize and defend itself against distinct invaders and their products.

The immune system contributes to homeostasis as it protects and defends against invaders that pose a threat to the body’s balance. Homeostasis is an internal balance that is maintained by multiple factors within the body. The immune system is responsible for avoiding and limiting infections in the body. It prevents and heals damage that invading pathogens may cause to the body. In this way, it helps maintain homeostasis by eliminating pathogens and the imbalances they cause in the body. A first defense, known as the innate immune response, activates as soon as the body is infected. It is the same regardless of the invader. Examples include skin, chemical secretions, and linings.

The Innate Immune System and Pattern Recognition Receptors – The innate immune system, which is also known as the non-specific immune system, is an important component of the immune system that recognizes and responds to potential pathogens in a “generic” fashion. In contrast to the adaptive immune system, the innate immune system does not confer long lasting/protective immunity. The innate immune system is typically considered the first line of defense and displays the ability to discriminate against “self” (host) vs. “non-self” (non-host/potential pathogens). In order to recognize non-self molecules the innate immune system utilizes a range of pattern-recognition receptors (PRRs) to detect molecules associated with potential pathogens.

Innate immunity refers to antigen-nonspecific defence mechanisms that a host uses immediately or within several hours after exposure to an antigen. This is the immunity that you are born with, and is the initial response by the body to eliminate

The adaptive immune response is antigen-specific and requires the recognition of specific “non-self” antigens during a process called antigen presentation. Antigen specificity allows for the generation of responses that are tailored to specific pathogens or pathogen-infected cells. The ability to mount these tailored responses is maintained in the body by "memory cells". Should a pathogen infect the body more than once, these specific memory cells are used to quickly eliminate it. so basically killer T cells will identify antigens present on foreign cells. These antigens are not found in any of the cells inside our body. So T cells will identify them and kill them.

Innate immune responses are known as the non-specific manner which composes the cells and defend the host from infection by other organism by mechanism. The adaptive immunity represents the antigen-specific immune response. Compare to innate immune response, adaptive response is more complex. In adaptive response the antigen needs to be recognised and processed. The adaptive immune system creates immune

Have you ever wondered how your body works? Did you ever think about how your body defends itself from outside invaders? Remember the last time you were sick. Did you know how your body fought and killed the sickness? All these questions can be answered by learning about one of the most important systems in your body, the immune system.

The human body is a very complex unit, did you know that our body works as a unit so that we can live each day healthy and energized. Well we are going to be talking about the human body and its immune system, and the importance of it. What we need to do to keep it working properly. What can cause things to go wrong and how to try and prevent them from happening? These things are all very important if we want to live a long and healthy life, with no interferences in the way we need to function.