Stress and Its Effects page 536

Stress occurs when the body responds to stressors that threaten the maintenance of homeostasis. Stress responses include increased activity of the sympathetic nervous system and increased secretion of adrenal hormones.

1. Types of stress a. Physical stress results from environmental factors that are harmful or potentially harmful to tissues.

b. Psychological stress results from thoughts about real or imagined dangers.

c. Factors that produce psychological stress vary with the individual and the situation.

2. Responses to stress a. Responses to stress maintain homeostasis.

b. The hypothalamus controls a general stress syndrome.

Critical Thinking Questions

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