Page 2 - Chapter 1 Introduction to the Human Body

physiologically its inner environment to ensure its stability in
response to fluctuations in the outside environment and the weather.

2. Homeostatic mechanisms: some examples
a. Temperature regulation
b. Blood glucose control
c. Blood pressure regulation
d. Water balance

3. Homeostatic imbalances
a. Hyperthermia and hypothermia
b. Hyperglycemia and hypoglycemia

Homeostasis and Negative/Positive Feedback Loops (Book Section 1.5)

Homeostasi
s: Maintaining Health and Avoiding Illness

Our bodies stay alive by maintaining a stable internal environment, or
homeostasis. Homeostasis is put in jeopardy when conditions become extreme.
For example:

 Low body core temperature caused by cold temperature � our
skin pores stop perspiring and/or muscles shiver to generate
heat