Flashcards in The Breathing System Deck (12):
The nose is for breathing in air.
The mouth is for breathing out air.
The air goes down the trachea before going into the lungs.
Rings of cartilage
Rings of cartilage hold the trachea up.
The ribcage protects your lungs and heart.
The intercostal muscles make the ribs contract and expand.
The bronchus gets the air from the trachea into the lungs.
The bronchioles take the air from the bronchus and into the alveoli.
The lung's main job is to help oxygen enter red blood cells, to be carried around the body.
The diaphragm separates the lower and upper part of your body. When it contracts your lungs expand.
The heart pumps blood around your body.