Chapter 12

4. Mass of abnormal cells:
8. Condition that results in inflammation of the joints, causing pain and stiffness:
10. Common viral infection that spreads through kissing or by sharing certain objects:
15. Complex disease that typically involves an uncontrolled growth of abnormal cells:
16. Medical emergency in which flow of blood to the heart is restricted, causing the heart to beat irregularly and inefficiently:
17. Substances that target and kill pathogenic bacteria:
18. resulting from the body’s inability to regulate glucose:
19. Way a disease gets from one organism or object to another; may be direct or indirect:

1. Medical conditions that cannot be spread among living things and objects, but develop as a result of heredity, environment, and lifestyle factors; also known as noninfectious diseases:
2. Food safety practices that maintain the safety of food you handle and eat; includes refrigerating and freezing certain foods, cooking meat thoroughly, and washing vegetables and fruits:
3. Viral infection of the respiratory system:
5. Practice of covering your mouth and nose with a tissue while coughing or sneezing, or sneezing into your sleeve:
6. Medical emergency in which blood flow to part of the brain is interrupted, injuring or killing brain cells:
7. Microorganisms that cause communicable diseases:
9. Disease that causes the body’s immune system to attack and damage healthy body tissues:
11. Condition someone can develop after coming into contact with living things or objects infected with the disease:
12. Viral or bacterial infection that causes inflammation of part of the eye:
13. Bacterial or viral infection that affects the tonsils:
14. Substance that contains a dead or nontoxic part of a pathogen that is injected into a person to train that person’s immune system to eliminate the live pathogen: