Immunity

Created by kristinmlr Teacher

27 terms

disease

the absence of homeostasis, the cause of loss of equilibrium in organism that results in illness

host

the organism that a nourishes and supports a parasite

imbalance

when a cell, organ, organism, or ecosystem is outside the "normal," healthy range, a loss of homeostasis, a loss of equilibrium

immune system

collection of organs that fight and promote resistance to disease

immunity

resistance to disease

infections

invasions by pathogens

infectious agent

a pathogen

microbes

microscopic organisms

parasite

an organism that lives on or in a host and causes it harm

pathogen

a disease causing organism

pathogenic

the characteristic of being able to cause a disease

toxic

having the ability to damage an organism

toxin

any substance than is inhaled, ingested, or absorbed at dosages high enough to damage a living organism.

vaccination

injection of a weakened or mild form of a pathogen to produce immunity

viral disease

loss of homeostasis caused by a virus

virus

a strand of hereditary material surrounded by a protein coating, needs a host so it can replicate

AIDS

The name of the late stages of HIV infection; defined by a specific reduction of T cells and the appearance of characteristic secondary infections.

white blood cell

a blood cell that fights disease

engulf

swallow up

allergic reactions

immune reactions to normally harmless substances

antibiotic

compound that blocks the growth and reproduction of bacteria

antigens

foreign substances that stimulate the production of antibodies.

bacteria

single-celled organisms that lack a nucleus; prokaryotes

diagnosis

identification of a disease, identifying the nature or cause of some phenomenon

active immunity

immunity produced by exposure to an antigen, as a result of the immune response

passive immunity

immunity that results when an individual receives the immune agents from some source other than his or her own body

antibody

a protein made by white blood cells that act against a specific antigen

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