1. 4-8  Turn in Project  Notes on Homeostasis and Human Body systems  Foldable on human body systems  Homefun: Finish the foldable at home

2. Learning Objectives  Describe how the human body is organized.  Explain homeostasis.

3. Organization of the Human Body

4. Organization of the Body

5. Tissues

6. Organ Systems

9. Homeostasis Room temperature decreases. Thermostat senses temperature change and turns heating system on or off. Room temperature increases. ONOFF

10. Cold environment causes body temperature to decrease. Start Body temperature increases. Stop Hypothalamus senses temperature change and sends signals that start or stop heat production. Body Temperature Control

11. Homeostasis Hypothalamus senses temperature change and sends signals that start or stop cooling mechanisms. Warm environment and exercise cause body temperature to increase. Start Stop Body temperature decreases.

12. The Body in Action

13. Student Worksheet Answers