Immune System - Innate Immune System

Innate Immune System

For more details on this topic, see Innate immune system.

Microorganisms or toxins that successfully enter an organism encounter the cells and mechanisms of the innate immune system. The innate response is usually triggered when microbes are identified by pattern recognition receptors, which recognize components that are conserved among broad groups of microorganisms, or when damaged, injured or stressed cells send out alarm signals, many of which (but not all) are recognized by the same receptors as those that recognize pathogens. Innate immune defenses are non-specific, meaning these systems respond to pathogens in a generic way. This system does not confer long-lasting immunity against a pathogen. The innate immune system is the dominant system of host defense in most organisms.

Read more about this topic:  Immune System

Famous quotes containing the words immune system, innate, immune and/or system:

    The moral immune system of this country has been weakened and attacked, and the AIDS virus is the perfect metaphor for it. The malignant neglect of the last twelve years has led to breakdown of our country’s immune system, environmentally, culturally, politically, spiritually and physically.
    Barbra Streisand (b. 1942)

    Man is born passionate of body, but with an innate though secret tendency to the love of Good in his main-spring of Mind. But God help us all! It is at present a sad jar of atoms.
    George Gordon Noel Byron (1788–1824)

    The moral immune system of this country has been weakened and attacked, and the AIDS virus is the perfect metaphor for it. The malignant neglect of the last twelve years has led to breakdown of our country’s immune system, environmentally, culturally, politically, spiritually and physically.
    Barbra Streisand (b. 1942)

    Our system is the height of absurdity, since we treat the culprit both as a child, so as to have the right to punish him, and as an adult, in order to deny him consolation.
    Claude Lévi-Strauss (b. 1908)