Inhaling And Exahling Book 2 Yr9 Flashcards
Inhaling -diaphragm
Contracts and flattens
Inhaling -intercostal muscles
Contract
Inhaling -rib cage
Goes up and out
Inhaling -chest cavity
1.Space increases
Inhaling -lungs and chest cavity
Air pressure decreases
Inhaling -lungs
Air pressure is lower than atmospheric pressure
Air pressure is drawn into lungs from higher pressure outside to lower pressure inside
Exhaling -diaphragm
Relaxes and domes up
Exhaling -intercostal muscle
Relax
Exhaling -ribs
Moves down and in
Exhaling -chest cavity
Volume in chest cavity decreases
Exhaling -chest cavity and lungs
Air pressure increase
Exhaling -lungs
Air pressure is higher than atmospheric pressure
It is forced out of the lungs from higher pressure inside to lower pressure outside
Inhale
When we inhale the diaphragm moves down and the rib cage moves up and out
Exhale
When we exhale, the diaphragm moves up, and the rib cage moves down in