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- DictionaryImmune system
noun
- 1. the organs and processes of the body that provide resistance to infection and toxins. Organs include the thymus, bone marrow, and lymph nodes.
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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 parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue.
3 days ago · 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. Learn more about the immune system’s mechanisms and evolution.
Nov 22, 2023 · 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...
What is the immune system? The immune system protects your child's body from outside invaders. These include germs such as bacteria, viruses, and fungi, and toxins (chemicals made by microbes).
Oct 20, 2023 · Your immune system starts damaging healthy tissues and organs. This causes potentially life-threatening inflammation throughout your body. Signs and symptoms of immune system disorders
May 22, 2024 · immune system. noun. : the bodily system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymph nodes, lymphocytes, and antibodies.
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 responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen.
The immune system is your body's defense system. It helps protect you from illness and infection. The immune system's job is to attack things that don’t belong in your body, including: Germs, such as bacteria, viruses, and fungi. Parasites.
The innate immune system is a general defense mechanism that protects you from the time your body is exposed to harmful germs until the time the second part of the immune response — the adaptive immune system — kicks in. The adaptive immune system identifies and attacks specific germ invaders. It also remembers them, in case of a repeat exposure.
