2️⃣Breathing😮💨 Flashcards
What happens to the diaphragm when you breathe in?
The diaphragm contracts and flattens
What happens to the intercostal muscles when you breathe in?
The intercostal muscles contract
What happens with the rib cage when you breathe in?
The rib cage moves up and out
What happens to the volume/space inside the chest cavity when you breathe in?
The volume/space inside the chest cavity increases
What happens to the air pressure in the chest cavity when you breathe in?
The air pressure in the chest cavity decreases
What happens to the air pressure in the lungs when you breathe in?
The air pressure in the lungs is now lower than the atmospheric pressure.
WHEN BREATHING IN
Air is ______ ____ the lungs from higher pressures ______ to lower pressure ______
Air is drawn into the lungs from higher pressure outside to lower pressure inside
What happens to the diaphragm when you breathe OUT?
The diagram relaxes and domes up
What happens to the intercostal muscles when you breathe OUT?
The intercostal muscles relax
What happens to the rib cage when you breathe OUT?
The rib cage moves down and in
What happens to the volume/space inside the chest cavity when you breathe OUT?
The volume/space inside the chest cavity decreases
What happens to the air pressure in the chest cavity and lungs when breathing OUT
The air pressure in the chest cavity and lungs increases
What happens to the air pressure in the lungs when you breathe OUT?
The air pressure is now higher than the atmospheric air pressure
WHEN BREATHING OUT
Air is ______ ____ the lungs from higher pressures ______ to lower pressure ______
Air is forced out of the lungs from higher pressure inside to lower pressure outside
