General features of the immune response Flashcards
What is Immunology
the study of immune responses of the body
refers to all mechanisms used by the body
as protection against environmental agents that
are foreign to the body, and altered self-proteins or cells
immunity
Environmental agents
Microorganisms or their products; foods; chemicals; drugs; pollen; animal hair
Immune system must differentiate between individual’s
own cells and those of harmful invading organisms.
Must not attack _______ that inhabit the ____,
_____, and ________ to the host’s benefit
commensal flora
gut, skin, and other tissues
presence of an infection must be detected (by the
innate and adaptive immune systems).
Immunological recognition
Functions of immune response
- Immunological recognition
- Immune effector functions
- Immune regulation
- Immunological memory
limits damage to the host by the immune response to antigen. Failure of this regulation contributes to disease states including allergy and autoimmune disease
Immune regulation
exposure to an infectious agent produces an immune response that can persist, and protect the host in a subsequent exposure
Immunological memory
There are two general ways by which the animal body defends itself against microbial
Innate or adaptive immunity
thec resistance that an individual possesses by birth
Innate immunity