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The immune system is a network of biological systems that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to bacteria, as well as cancer cells, parasitic worms, and also objects such as wood splinters, distinguishing them from the organism's own healthy tissue. Many species have two major ...
This immune "relaxation" is incorporated throughout the immune system, decreasing immune responses against harmless allergens, gut flora, and the body itself. [9] Importance of T helper cells in an immune response: T helper cells recognize antigens from antigen-presenting cells (APCs) and then release cytokines and activate other immune cells ...
These responses are the immune system fighting off the foreign antigens, whether they are deadly or not. A possible definition of Immunopathology is how the foreign antigens cause the immune system to have a response or problems that can arise from an organism's own immune response on itself.
A sore throat, for example, turns red and is painful because the immune system is fighting the infection to prevent it from spreading, which doctors call acute inflammation, said Dr. Moshe Arditi ...
A cytokine storm, also called hypercytokinemia, is a pathological reaction in humans and other animals in which the innate immune system causes an uncontrolled and excessive release of pro-inflammatory signaling molecules called cytokines.
In 1974, Niels Kaj Jerne proposed that the immune system functions as a network that is regulated via interactions between the variable parts of lymphocytes and their secreted molecules. Immune network theory is firmly based on the concept of clonal selection. Jerne won the Nobel Prize in Physiology or Medicine in 1984, largely for his ...
Immunology is a branch of biology and medicine [1] that covers the study of immune systems [2] in all organisms.. Immunology charts, measures, and contextualizes the physiological functioning of the immune system in states of both health and diseases; malfunctions of the immune system in immunological disorders (such as autoimmune diseases, hypersensitivities, [3] immune deficiency, [4] and ...
This is a function of the adaptive immune system. Therefore, by exposing a human, or an animal, to an immunogen in a controlled way, its body can learn to protect itself: this is called active immunization. The most important elements of the immune system that are improved by immunization are the T cells, B cells, and the antibodies B cells ...
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