The Breathing System Flashcards
Nose
The nose is for breathing in air.
Mouth
The mouth is for breathing out air.
Trachea
The air goes down the trachea before going into the lungs.
Rings of cartilage
Rings of cartilage hold the trachea up.
Ribcage
The ribcage protects your lungs and heart.
Intercostal muscle
The intercostal muscles make the ribs contract and expand.
Bronchus
The bronchus gets the air from the trachea into the lungs.
Bronchiole
The bronchioles take the air from the bronchus and into the alveoli.
Lung
The lung’s main job is to help oxygen enter red blood cells, to be carried around the body.
Diaphragm
The diaphragm separates the lower and upper part of your body. When it contracts your lungs expand.
Heart
The heart pumps blood around your body.
Alveoli
The alveoli is where gas exchange happens.
