BREATHING slide share for 10 standard ppt

*Breathing
*Respiratory organs
*Respiratory pathway

1. WELCOME

2. BREATHING

3. Process of exchange of oxygen from the atmosphere with carbon dioxide produced by the cell – Breathing/Respiration Requires respiratory organs

4. Human Respiratory System Respiratory organ – Lungs

5. ATMOSPHERIC AIR IN TO LUNGS

6. NOSTRIL NASAL CAVITY TRACHEA BRONCHUS BRONCHIOLE ALVEOLI

7. Mechanism of Breathing 2 stges . 1. Inspiration 2. Expiration Atmospheric air drawn in – Inspiration Alveolar air is released out- Expiration Basis of respiratory movement – Expansion &Contraction of Thoracic cavity

8. Inspiration Volume of thoracic cavity increases Pressure in thoracic cavity lower than atmospheric pressure Diaphragm contracts Ribs raise Expiration Volume of thoracic cavity decrease Pressure in thoracic cavity higher than atmospheric pressure Diaphragm relaxes Ribs lower

9. Thank you💗