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I know we have white blood cells and T cells and helper t cells. What else is going on?© BrainMass Inc. brainmass.com December 24, 2021, 11:33 pm ad1c9bdddf
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Problem: I know we have white blood cells and T cells and helper t cells. What else is going on?
Solution: In addition to white blood cells, T cells, and helper T cells, the immune system is also comprised of very specialized cells known as natural killer cells. What is interesting about these cells is the fact that these cells have the capability to recognize other bodily cells within the body that have been compromised, such as being infected with viruses, or have become tumorous. These natural killer cells help to protect the body by destroying those compromised cells, which helps to prevent the spread of viruses,bacteria, and tumor cells. This is very important in protecting the body from highly detrimental health conditions such as the spread of tumorous or cancer cells, which is a life-saving attribute of these natural killer cells. These cells are differentiated from T cells due to the fact that they destroy compromised cells in a different manner than T cells. The B cell is another very important cell of the immune system, and has the role of being able to identify detrimental cells and or pathogens within the body. This is a very important component of the immune response, and this role serves as the catalyst for biochemical processes that alert natural killer cells, T cells, etc. that certain harmful antigens exist within the body, and identifies these antigens for attack by other components of the immune system. This identification process adds to the efficiency and effectiveness of the immune response, due to the fact that the more harmful antigens that are identified within the body, the greater percentage of these antigens that are destroyed before they can multiply and cause a tremendous level of harm within the body. The identification activities by B cells, in conjunction with the identification and destruction activities by killer T cells and other cells, exponentially increases the effectiveness of the identification and destruction of harmful parasitic elements within the body. B cells also have the capacity to utilize their antibodies as a means by which to help to block the infection of cells by bacteria and viruses etc. What is very important in the roles of natural killer cells and B cells within the body, is the fact that over time and exposure to differing types of antigens, parasites, bacteria, and viruses etc., there is a continuous multiplication of the number of natural killer cells and B cells, in conjunction with the growth of the individual, and their level of exposure to different antigens etc. What makes these different cells more and more effective over time, is the fact that a component of some of these these replicated cells contain what are known as memory cells, which helps in the recognition of differing types of threats to the body based upon previous exposure to these threats or pathogens, which makes the immune system able to continuously improve its capabilities over time.
Lauren M. Sompayrac, (2012). How the Immune System Works. Wiley-Blackwell Publishing.