What is the correct order of the structures through which air passes as it goes from the atmosphere to the lungs?

Answer 1

Air enters through the oropharynx or nasopharynx to the trachea to the bronchii to the alveoli of the lungs to the blood vessels of the pulmonary vein to the heart to the arteries to the capillaries to the veins to the heart to the pulmonary artery to the alveoli of the lungs to the bronchii through the trachea out of the naso or oropharynx and back into the atmosphere to the broadleaf plants to the atmosphere to the . . .

Answer 2

When you inhale, air comes into your body. You already know that air moves through your nose, throat, and trachea. Your trachea divides into 2 bronchial tubes, each of which goes into a lung. Inside your lungs, your bronchial tubes divide into smaller and smaller tubes. The smallest tubes go to groups of tiny pouches that are called air sacs.
Inhaled air, which has lots of oxygen, enters the air sacs. At this moment, the blood in the vessels around the air sacs has a lot of carbon dioxide, which the blood picked up from body cells. The blood contains little oxygen.
An exchange of gases quickly takes place. Oxygen goes from the air sacs into the blood vessels. The blood blood now has oxygen to take to the body cells. At the same time the oxygen goes out of the air sacs, carbon dioxide goes from the blood vessels into the air sacs. The carbon dioxide leave your body when you exhale.

Answer 3

It enters through your mouth.

Answer 4

nose sinuses trachea lungs