The Immune System

The immune system utilizes its biological responses to protect the body from infection and disease. It's critical mechanisms allow for the rapid sensing and elimination of microbes that can harm your body. When a virus invades your body the immune system enforces a complex process to remove it. Your body carries out this process by identifying the virus, activating the immune system, and by restraining and eliminating the virus. When dealing with intruders, the body recruits relies on the adaptive immune system.

These in turn are influenced by the feedback from different parts of the body. SUMMARY The immune is a collection of cells that keeps a note of the pathogens that invade and it is able to destroy them. This makes the body immune to that disease. The immune system is responsible for warding of infection through the infection fighting cells and chemicals. References 1.

Multidrug resistant strains such as Staphylococcus, Streptococcus, Enterococcus, Pseudomonas, Mycobacterium tuberculosis, and Plasmodium pose unique problems in the health field and caregivers must treat the infected patients without effective antimicrobials. Through intensive research, studies have shown that cells are able to genetically acquire resistance in two ways: through mutations of chromosomal genes and by acquiring resistance genes or chromosomal pieces of DNA called plasmids in a process called horizontal gene transfer. Literature reports, “Bacteria can carry genes that allow them to survive exposure to the antibiotic we currently have. This means that infections caused by these bacteria are harder to treat, although they are not more severe or infectious. What is concerning is that the gene that carries they antibiotic resistance can be passed between bacteria, allowing for the creation of bacteria that carry resistance to many antibiotics, a superbug”.

The Immune System The immune system is a group of cells, molecules, and tissues that help defend the body against diseases and other harmful invaders. The immune system provides protection against a variety of potentially damaging substances that can invade the body. These substances include disease-causing organisms, such as bacteria, fungi, parasites, and viruses. The body's ability to resist these invaders is called immunity. A key feature of the immune system is its ability to destroy foreign invaders while leaving the body's own healthy tissues alone.

Well a vaccine is a product that produces immunity from a disease it can be administered through needle injections, by mouth, or by aerosol. (Basics, n.d.) Sounds simple right well that leads people to wonder how do they work? They help develop immunity by acting as the infection, it is only acting as the infection so

This system involves the body's ability to distinguish cells that are part of the body from those that have found their way in and are harmful. Most of these unwanted substances are viruses, bacteria, and other type of disease causing organisms. When a cell in our body has become infected or has become cancerous it’s surface changes. This is how the immune system can tell good cells from bad ones (the markings on the surface.) Once a bad cell has been recognized our bodies sends cells to destroy the damaged cell and prevent the spread of whatever caused the damage in the first place.

autoimmune disease and aplastic anemia Now that we understand how B-cells and T-cells fight antigens to help protect us. What occurs during an autoimmune disorder, specifically Aplastic Anemia? An auto immune response is an immune response against ones owns cells. Further more autoimmune diseases can be classified into 3 categories; haemolytic autoimmune disease, which is a abnormalities with regards to the blood. Localized autoimmune disease which specifically targets one organ

Drug resistance is the capability for a microbe, such as bacteria, to continue to grow even in the presence of an antimicrobial, which was meant to halt the growth or kill the microbe. In this particular instance, the antimicrobial is rendered unusable when trying to treat or cure a specific infection. As a result, the drug becomes ineffective due to the resistance that the microbe has developed toward it. The reason this occurs is because of a gene that certain microbes possess, which allow it to become resistant toward the antimicrobial. Bacteria can develop this resistance through mutations as well as when a bacteria obtains a new DNA helicase.

Certain conditions in the body can also promote the growth of cancer cells. One of these is a deficiency of natural killer (NK) cells, which are able to kill cancer cells by creating a pore in the cell membrane with perforin and releasing granzymes into the cell. Low levels of perforin allow for tumor growth 1. Chronic inflammation can also ... ... middle of paper ... ...gens are exogenous (outside the cell) and will be presented to helper T cells to initiate an immune response. This can trigger cytotoxic T cells to kill cancer cells with the same antigen – often HPV viral proteins in cervical cancer.

An antibody is like a protein marker produced by B-Cells to identify foreign objects. Unfortunately, as useful the immune system is for our bodies, there are many disorders and diseases related to it. Immune system disorders cause low immune activity or over immune activity in the immune system. During immune system over activity cases, the body damages and attacks its own tissues; these diseases are known as autoimmune diseases. Immune deficiency decreases the body's ability to fight pathogens, causing a higher chance for infection.