Anaphylaxis Flashcards
a substance that induces the formation of antibodies
antigen
A substance capable of inducing allergy of specific hypersensitivity. Allergens may be protein or nonprotein although more are proteins.
Allergen
Marked edema of the skin that usually involves the head, neck, face, and upper airway; a common manifestation of severe allergic reactions and anaphylaxis
Angioneurotic Edema
Any substance that is capable, under certain conditions, of inducing a specific immune response.
Antigen
A type of white blood cell that participates in allergic responses.
basophil
A product of mast cells and basophils that causes vasodilation, capillary permeability, bronchoconstriction, and contraction of the gut
Histamine
Any poisonous chemical secreted by bacteria or released following destruction of the bacteria.
toxin
The raised areas, or wheals, that occur on the skin associated with vasodilation due to histamine release; commonly called, “Hives.”
Urticaria
a chemical attack (antibodies and Igs) of the invading substance.
Humoral immunity
a direct attack of the foreign substance by specialized cells of the immune system.
cellular immunity
Although mast cells are found throughout the body, most reside in connective tissues such as those of the
skin, tongue, the lining of the nose and intestinal tract, the lungs, and upper airways.
The IgE antibodies cause the mast cells to release
inflammatory chemicals that cause swelling of tissues
what do h1 receptors do?
When stimulated, these cause bronchoconstriction and contraction of the intestines.
What do h2 receptors do?
These cause peripheral vasodilation and secretion of gastric acids
lge antibodies cause the mast cells to release_____, which causes itching, engorgement of blood vessels, and bronchospasm
histamine
