1. Internal Regulation Flashcards
What is Internal Regulation?
Biological processes that maintain stability within organisms
Key to survival, it includes temperature homeostasis and water balance.
Who introduced the concept of Temperature Homeostasis?
Walter B. Cannon
Homeostasis involves maintaining stable internal conditions.
What is the set point for human body temperature?
Around 37°C or 98.6°F
What can deviations from the set point in temperature lead to?
Hyperthermia or hypothermia
Define Allostasis.
The body’s adaptive adjustments to changes, especially stressors
How does Allostasis differ from Homeostasis?
Allostasis accommodates shifting needs over time, while homeostasis seeks constancy
What are some Temperature Regulation Behaviors?
Seeking shelter, adjusting clothing, social huddling
Which part of the brain regulates body temperature?
The hypothalamus
What physiological responses does the hypothalamus trigger to regulate temperature?
Shivering and sweating
What regulates thirst in the body?
The hypothalamus
What triggers Osmotic Thirst?
High salt concentration
What triggers Hypovolemic Thirst?
Blood volume loss
What influences Hunger and Food Selection?
Stomach distension, hormone levels (e.g., leptin, insulin), feedback from intestines
What are the types of Eating Disorders?
Anorexia nervosa, bulimia nervosa, binge-eating disorder, avoidant/restrictive food intake disorder
What psychological factors play significant roles in Eating Disorders?
Body image distortion, low self-esteem, perfectionism, co-occurring depression and anxiety
