Breathing
- Created by: Remya Salimkumar
- Created on: 27-04-15 22:28
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- BREATHING
- INSPIRATION
- 2)External intercostal muscles contract
- to raise ribs
- 1)Diaphragm contract to become flatter
- Pushes digestive organs down
- 3)Volume of thorax increases
- 4) Pressure in thorax decreases to below atmospheric pressure
- 5)Air moves in to lungs
- 2)External intercostal muscles contract
- EXPIRATION
- 1)Diaphragm relaxes
- is pushed up by displaces digestive organs
- 2) External intercostal muscles relax
- ribs fall
- 3) volume of thorax decreases
- 4) Pressure in thorax increases to above atmospheric pressure
- 5) air move out of lungs
- 1)Diaphragm relaxes
- INSPIRATION
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