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Immune response. An immune response is a physiological reaction which occurs within an organism in the context of inflammation for the purpose of defending against exogenous factors. These include a wide variety of different toxins, viruses, intra- and extracellular bacteria, protozoa, helminths, and fungi which could cause serious problems to ...
The immune system is the set of tissues which work together to resist infections. The immune mechanisms help an organism identify a pathogen, and neutralize its threat. [1] The immune system can detect and identify many different kinds of disease agents. Examples are viruses, bacteria and parasites.
Dec 24, 2022 · The immune system is a system of biological structures and processes within an organism that protects against disease. Learning Objectives. Distinguish between innate and adaptive immunity. Key Points. Pathogens can rapidly evolve and adapt to avoid detection and neutralization by the immune system.
Jun 6, 2023 · The immune system has a vital role: It protects your body from harmful substances, germs and cell changes that could make you ill. It is made up of various organs, cells and proteins. As long as your immune system is running smoothly, you don’t notice that it’s there.
The immune system is complex and pervasive. There are numerous cell types that either circulate throughout the body or reside in a particular tissue. Each cell type plays a unique role, with different ways of recognizing problems, communicating with other cells, and performing their functions.
Plan of Action. Overview of the Immune System. video. The immune system is designed to defend the body against foreign or dangerous invaders. Such invaders include. Microorganisms (commonly called germs, such as bacteria, viruses, and fungi) Parasites (such as worms) Cancer cells. Transplanted organs and tissues.
The immune system is the parts of the body which work against infection and parasitism by other living things. Immunology deals with the working of the immune system in health and diseases, and with malfunctions of the immune system. An immune system is present in all plants and animals.
