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The immune system is the body’s tool for preventing or limiting infection. Its complex network of cells, organs, proteins, and tissues enable the immune system to defend the body from pathogens.
What parts of your body make up the immune system? Many parts of your body, including immune system organs and cells, work together to keep you healthy. The main components of your immune system are: White blood cells. These immune system cells attack and eliminate harmful germs to keep you healthy.
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 parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue. Many species have two major subsystems of ...
The immune system has many components: Antibodies (immunoglobulins) are proteins that are produced by white blood cells called B cells and that tightly bind to the antigen of an invader, tagging the invader for attack or directly neutralizing it.
Immune system, the complex group of defense responses found in humans and other advanced vertebrates that helps repel disease-causing entities. Immunity from disease is conferred by two cooperative defense systems: innate immunity and acquired immunity.
The immune system is made up of different organs, cells, and proteins that work together. There are 2 main parts of the immune system: The innate immune system.
Our immune system is made up of individual cells and proteins, as well as entire organs and organ systems. The organs of the immune system include skin and mucous membranes, blood and the organs of the lymphatic system.
The immune system distinguishes self from nonself and eliminates potentially harmful nonself molecules and cells from the body. The immune system also has the capacity to recognize and destroy abnormal cells that derive from host tissues. Any molecule capable of being recognized by the immune system is considered an antigen (Ag).
QUICK FACTS. Overview of the Immune System. By The Manual's Editorial Staff. Reviewed/Revised Nov 2023. VIEW PROFESSIONAL VERSION. Get the full details. What is the immune system? |. What does the immune system do? |. What are the main parts of the immune system? |. What problems can the immune system have? What is the immune system?
The overall function of the immune system is to prevent or limit infection. An example of this principle is found in immune-compromised people, including those with genetic immune disorders, immune-debilitating infections like HIV, and even pregnant women, who are susceptible to a range of microbes that typically do not cause infection in ...