1. Control of breathing

2. Control of breathing
Both voluntary and involuntary

3. Control of breathing
Respiratory centers:
1. Medulla oblongata
2. Pons (bridge 234)

4. Control of breathing
Reflex control: AKA autonomic control

5. Chemoreceptor Reflexes
Responds to the H+ concentration in the blood (from carbonic acid)

6. Chemoreceptor Reflexes
If..
H THEN
Respiration

7. Protective reflexes Movie time:
What happens when people are poisoned by toxic gases?

8. Protective reflexes
1. Stop breathing!
2. Start coughing!

9. Use your book and write a definition for the following words. 450.
BOOK TIME:
Use your book and write a definition for the following words. 450.
Hyperventilation, Hypoxia, Anoxia, etc..

10. Rapid shallow breathing. Reduce carbon dioxide levels in blood stream
HYPERVENTILATION
Rapid shallow breathing.
Reduce carbon dioxide levels in blood stream

11. Apnea
LACK of breathing

12. Difficulty breathing (painful)
Dyspnea
Difficulty breathing (painful)

13. Tissues do not get enough oxygen
Hypoxia
Tissues do not get enough oxygen

14. Anoxia
NO oxygen for tissue (stroke)

15. Crib death, babies stop breathing
SIDS
Crib death, babies stop breathing

16. SIDS
CAUSED by:
Infections, heredity, CNS malfunction, cardiac arrhythmias, laryngeal spasms.

17. ?
What happens when you get the wind knocked out of you?

18. Wind knocked out
Solar plexus behind stomach gets temporarily paralyzed and you NO breath (Story)