Breathing System Flashcards
1
Q
Diaphragm
A
Contracts and moves downwards Relaxes and moves upwards
2
Q
Intercostal muscles
A
Contract, moving the ribs upwards and outwards
Relax, letting the ribs move downwards and inwards
3
Q
Volume of rib cage
A
Increases
Decreases
4
Q
Pressure inside the chest
A
Decreases below atmospheric pressure
Increases above atmospheric pressure
5
Q
Movement of air
A
Moves into the lungs
Moves out of the lungs
