What Role Does Immunity Play In The Immune System

In an acute stressor, the immune system is heightened. But is suppressed in a chronic stressor. In this situation the cortisol levels rise, and weaken the immune system. This weaken system can make the human body more susceptible to serious disease, infections

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 main function of the immune system is to protect the body from infectious agents such as viruses and other toxins. The immune system can fail us in two ways-either by becoming under-vigilant, letting infections enter the body, or over-vigilant, so that it is the immune system itself, rather than an infectious agent that causes illness.

Acquired immunity is a type of immunity also known as the third line of defence, it is the immunity produced when the human body has been infected by an antigen which triggers the production of antibodies. There are two types of acquired immunity which are active and passive acquired immunity.

In the initial phase of an infection, the innate immune system generates a rapid inflammatory

The immune system is a series of cells, tissues, organs, and processes in the body that distinguishes between what the normal cell in the body and pathogens to fights infections, and develops immunity (LaPensee, 2008). In addition, the immune system is divided into innate immunity and acquired immunity, which they interact with each other to cause immune response in the human body to protect it from infections such as bacteria, fungi, and parasites. Not to mention, innate immunity is the first line of defense that has different component to protect the body such as, mechanical (coughing, sneezing, enzymes, mucous, stomach

The immune system consists of a defense system that guards the body against invasion from infections and other diseases. Normally, a healthy person's immune system has the capability to differentiate between its own cells and cells that represent threats to the health of the body. (Craft and Kanter, 2002). Autoimmune disease refers to a broad range of over 80 acute, long-lasting diseases that affect nearly every organ in the body. (Wrong Diagnosis.com, 2000).

Active-Natural immunity happens when a person is exposed to a live pathogen, such as chicken pox, develops that disease, and the body creates an immune response to that specific pathogen. Active immunity is often called acquired immunity.

Innate immunity refers to nonspecific defence mechanisms that respond to an antigen's presence in the host body. These mechanisms include physical barriers such as skin, chemicals in the blood, and immune system cells that attack foreign cells in the body. The innate immune response is activated by chemical properties of the antigen.

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

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

The immune system can broadly be divided into two categories: the innate immune system and the acquired or adaptive immune system. The innate system acts like the first line of defense, it works by recognizing a broad range of pathogens on the basis of their patterns and certain molecules that are different from those found in the organism e.g. the human innate immune system will recognize peptidoglycans that are found in bacteria but not humans. The innate system consists of physical barriers like the skin and mucosal membrane and other cells like natural killers and cytokines. It is thought, as of now, that the innate immune system has no memory. The acquired or adaptive immune system on the other hand is much more specific. (Warrington, Watson, Kim, & Antonett, 2011) Rick M Maizels et al state that the reason natural selection has favored so much variation in the immune response is because in order to survive, the organism must illicit a strong response against a large number of invading pathogens. Had this response not been a highly evolved one, our immune system would not have been able to fend of many complex pathogens which can themselves evolve rapidly to encounter the hosts’ immune system. (Maizels & Nussey, 2013)

Our immune system is made up of two parts that work together to keep us healthy. The first part is called the innate immune system, it is made up mostly of ‘scavenger’ and ‘killer’ cells that fight off bacterial infections and give the body a general defense against harmful substances. The second part of the immune system is called the adaptive immune system. This part