Flashcards in Ch 18 Vocab Deck (15):
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Substances that cause an allergic reaction
Allergens
1
The body's exaggerated immune response to an internal or surface agent
Allergic reaction
2
An extreme, life-threatening systemic allergic reaction that may include shock and respiratory failure
Anaphylaxis
3
The act of ejecting venom
Envenomation
4
A substance produced by the body (commonly called adrenaline), and a drug produced by pharmaceutical companies that increases pulse rate and blood pressure; the drug of choice for an anaphylaxis reaction
Epinephrine
5
Substances released by the immune system in allergic reactions that are responsible for many of the symptoms of anaphylaxis, such as vasodilation
Histamines
6
The body's response to a substance perceived by the body as foreign
Immune response
7
The body system that includes all of the structures and processes designed to mount a defense against foreign substances and disease-causing agents
Immune system
8
The study of the body's immune system
Immunology
9
Chemical substances that contribute to anaphylaxis; released by the immune system in allergic reactions
Leukotrienes
10
A harsh, high-pitched respiratory sound, generally heard during inspiration, that caused by partial blockage or narrowing of the upper airway
Stridor
11
A poison or harmful substance
Toxin
12
Small spots of generalized itching and/or burning that appears as multiple raised areas on the skin; hives
Urticaria
13
A raised, swollen, well-defined area on the skin resulting from an insect bite or allergic reaction
Wheal
14