7Ca-Muscles And Breathing Flashcards
1
Q
What does gas exchange mean?
A
In your lungs, oxygen goes into the blood. One gas is exchanged for the other and so this is called gas exchange.
2
Q
What is ventilation?
A
Ventilation is the movement of air into and out of your lungs.
3
Q
What organs form the gas exchange system?
A
The trachea (windpipe), the lungs, the diaphragm, and the muscles attached to (mostly in between) our ribs.
4
Q
What is the breathing rate?
A
The breathing rate is the number of times you inhale and exhale per minute.
5
Q
What happens when the muscles attached to your ribs contract?
A
The diaphragm moves downwards and flattens out.
