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It is carried in air droplets so enters through the airway and then into the lungs where it thrives on warm, damp environment.
Through nose.
nostrils
mucous and nose hair.
Carbon dioxide is produced inside all the cells of the body, as a metabolic by-product. Carbon dioxide does not enter through the lungs, rather, it leaves through the lungs.
Oxygen rich air enters the body through the lungs.
As the diaphragm contracts, air enters the body through the nose and mouth.
through water mostly, some enters from the air.
Air enters the body when you inhale (Breathe in) air enters through the mouth and into the lungs. and then exhale (Breathe out) carbon dioxide (CO2)
nose or mouth
lung
when air enters the body through the drips we take it may lead to many health problems.
goes in through the top and comes out the bottom
Through your nose and mouth.
throat, bronchies, lungs
Spiracles
The function of the respiratory system is to provide the body with oxygen. Oxygen enters the body through the respiratory system and is carried in blood throughout the body.