Cilia
oxigen is the gas that enters the blood through the lungs
oxigen is the gas that enters the blood through the lungs
Oxygen enters your nose,then goes through the trachea,to the bronchi,and last to your lungs.
Oxygen enters the blood from the lungs through the process of gas exchange where it diffuses into the bloodstream from the alveoli. In the lungs, carbon dioxide exits the bloodstream and is expelled from the body through exhalation.
trachea
Blood enters the lungs through the pulmonary arteries.
Oxygen enters your nose,then goes through the trachea,to the bronchi,and last to your lungs.
It enters through the capillaries of the lungs.
Air enters through the trachea and into the lungs.
Lungs
Passages through which air enters the lungs is called the bronchi which branch off of the trachea.
When blood leaves the lungs through the pulmonary veins, it returns to the heart and enters the left ventricle.