Ch 18 Vocab Flashcards Preview

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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

A high-pitched, whistling breath sound, usually caused by a constriction of the smaller tubes of the lungs and typically heard on expiration

Wheezing