2. Respiratory System Body Systems

3. Let’s label the respiratory system! Jason Nasal Passage mouth trachea bronchi bronchiole alveoli lungs diaphragm

4. Respiratory system in the body

5. What is breathing? Cup your hands together over your mouth and feel your breath. Cup your hands together over your mouth and feel your breath. Sit and observe. Sit and observe. Now…stand up and…. Now…stand up and…. Do ten push ups Do ten push ups Do ten jumping jacks Do ten jumping jacks Do ten more push ups Do ten more push ups Do ten more jumping jacks Do ten more jumping jacks

6. Observation time Now sit and observe your breathing. Now sit and observe your breathing. Jot notes down in your journal. Jot notes down in your journal. Please share. Please share.

7. Oxygen and Carbon Dioxide Our body needs oxygen. Our body needs oxygen. Oxygen is brought in when we inhale. Oxygen is brought in when we inhale. Carbon dioxide is sent out when we exhale. Carbon dioxide is sent out when we exhale.

8. Carbon dioxide Carbon dioxide is waste that our body produces. Carbon dioxide is waste that our body produces. Carbon dioxide is rid of when we exhale. Carbon dioxide is rid of when we exhale. But…what happens to the carbon dioxide? But…what happens to the carbon dioxide? Trees and plants need carbon dioxide to live. Trees and plants need carbon dioxide to live. Trees and plants get rid of oxygen. Trees and plants get rid of oxygen.

9. What is going on when we breathe Blood flows from the heart to the alveoli. Blood flows from the heart to the alveoli. Outside the alveoli are capillaries. Outside the alveoli are capillaries. Oxygen passes through the capillary wall. Oxygen passes through the capillary wall. Joins with red blood cells. Joins with red blood cells. At the same time, carbon dioxide passes into the alveoli and leaves when you breathe out or exhale. At the same time, carbon dioxide passes into the alveoli and leaves when you breathe out or exhale. Oxygen rich blood goes back to heart to be sent throughout the body. Oxygen rich blood goes back to heart to be sent throughout the body.

10. Alveoli

11. Cilia Tiny hairs in the nasal passages, bronchi, and trachea that help remove or filter, dust and dirt particles. Tiny hairs in the nasal passages, bronchi, and trachea that help remove or filter, dust and dirt particles. Cilia help to keep your lungs clean. Cilia help to keep your lungs clean.

12. Cilia There are no cilia in your mouth. There are no cilia in your mouth. Therefore the air that you breathe through your mouth is not as clean as the air you breathe through your nose. Therefore the air that you breathe through your mouth is not as clean as the air you breathe through your nose.

13. Trachea

14. Let’s label, yea!!!!!!

15. Diaphragm Die uh what? Die uh what? Diaphragm is a large flat muscle under lungs. Diaphragm is a large flat muscle under lungs. When you breathe in, it tightens, or contracts and moves down. When you breathe in, it tightens, or contracts and moves down.

16. Diaphragm When you breathe out, diaphragm and chest muscles relax. When you breathe out, diaphragm and chest muscles relax. Diaphragm pushes upward to help force air out of the lungs. Diaphragm pushes upward to help force air out of the lungs.

17. Diaphragm and breathing

18. Smoking Why do you think smoking is bad for you? Why do you think smoking is bad for you? Smoke will paralyze the cilia and they won’t be able to filter dust and dirt. Smoke will paralyze the cilia and they won’t be able to filter dust and dirt. Eventually the cilia will be destroyed. Eventually the cilia will be destroyed. Tar coats the bronchi and makes it harder for oxygen to pass. Tar coats the bronchi and makes it harder for oxygen to pass.

19. Smoking Lung of non smoker on left and lung of smoker on the right

20. Cancer

22. So….. What are the effects of smoking? What are the effects of smoking? What will you spend your money on if you don’t buy cigarettes? What will you spend your money on if you don’t buy cigarettes?

23. Exercise What can exercise do for your respiratory system? What can exercise do for your respiratory system? Exercise will…. Exercise will…. Increase your lung capacity. Increase your lung capacity. Make your diaphragm and muscles around lungs stronger. Make your diaphragm and muscles around lungs stronger.