The human body must regulate its internal environment like temperature, blood volume, blood sugar, blood ions, blood pH, iron, calcium and energy levels to function properly through homeostasis. The organ systems work together to maintain homeostasis by taking in nutrients, expelling waste and keeping various body processes under tight control.

1. Homeostasis

2. Homeostasis The human body must regulate itself to function properly.

3. Homeostasis

4. Homeostasis It must take-in required nutrients and expel waste.

5. Think. Pair. Share. What must the human body regulate and keep under control to function properly?

6. Homeostasis The following must be under kept tight control: Temperature Blood volume Blood sugar Blood ions (Na, K) Blood pH Iron and Calcium Energy In addition to others

7. Homeostasis Our organ systems work together to maintain homeostasis.