Chapter 14 SectioN 4 Flashcards
Allergy
A disorder in which the immune system is overly sensitive to a foreign substance.
Non infectious disease
A disease that is not spread from person to person.
Allergen
A substance that causes an allergy.
Histamine
A chemical that is responsible for the symptoms of an allergy.
Asthma
A disorder in which the respiratory passages narrow significantly.
Insulin
A chemical produced in the pancreas that enables the body’s cells to take in glucose from the blood and use it for energy.
Diabetes
A condition in which either the pancreas fails to produce enough insulin, or the body’s cells cannot use insulin properly.
Tumor
A mass of abnormal cells that develops when cancerous cells divide and grow uncontrollably.