1. AIM: How does your Body’s Respiratory System function to Maintain Bodily Homeostasis? DO NOW 1.What is breathing? Why is it important for the body? 2.What are some body parts that help you breathe?

2. Respiratory System Function Function: to take in oxygen (O 2 ) & expel carbon dioxide (CO 2 ) as we breathe!

3. Respiratory System Notes

5. Bronchioles & Alveoli

6. Alveolus Gas Exchange

8. Diaphragm Muscle that controls breathing Contracts  Inhalation (Lungs fill up with air) Relaxes  Exhalation (Air is released)

9. Inhalation & Exhalation

10. Video https://www.brainpop.com/health/bodysyste ms/respiratorysystem/ https://www.brainpop.com/health/bodysyste ms/respiratorysystem/

11. Group Activity In groups of 4, describe your trip as an oxygen molecule, going from being in the air to the respiratory system and, finally, a person’s body tissues. Next, put it in reverse. As a carbon dioxide molecule, describe your trip from the body’s tissues to the outside air.

12. Group Activity In groups, work on completing the handout with questions on the respiratory system video. (10 Questions)

13. Individual Activity Q: How is respiration different from breathing?

15. Homework Complete the Brain-Pop Vocabulary Sheet Define the words!