Immune system Notes: Definitions & Explanations PDF | Download eBooks
Study Immune system lecture notes PDF with biology definitions and explanation to study What is Immune system?. Study immune system explanation with biology terms to review biology course for online degree programs.
Immune system Definition:
Together, the body's defenses make up the immune system, which enables an animal to avoid or limit many infections.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Immune system Notes:
The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. In many species, the immune system can be classified into subsystems, such as the innate immune system versus the adaptive immune system, or humoral immunity versus cell-mediated immunity. In humans, the blood-brain barrier, blood-cerebrospinal fluid barrier, and similar fluid-brain barriers separate the peripheral immune system from the neuroimmune system, which protects the brain.
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