Breathing Flashcards
1
Q
What happens when you breathe in ?
A
- muscle between the ribs contract
- ribs move outwards
- diaphragm contracts
- volume of your chest increases
- pressure in your chest decreases
- air enters your lungs
2
Q
What happens when you breathe out ?
A
- muscle between the ribs relax
- ribs move inwards
- diaphragm moves up
- volume of your chest decreases
- pressure in your chest increases
- air exits your lungs
3
Q
What is lung volume ?
A
the amount of air you can breathe into your lungs in a single breathe
4
Q
How can you measure lung volume ?
A
by a spirometer
