trachea
When air passes through your lungs it is called respiration.
Oxygen passes through the lining of the lungs and into the blood. Carbon dioxide passes from the blood out into the air in the lungs. The blood flows near the surface of the lining in structures called capillaries, which are composed of tissue thin enough to allow this O2/CO2 transfer.
Air passes through: 1. Nose or Mouth 2. Nasal cavity 3. Pharynx 4. Larynx 5. Trachea (in throat) 6. Bronchus (in chest) 7. Bronchioles (finer tubes inside lungs) into the alveoli (tiny pockets inside lungs). The o2/co2 exchange occurs in the alveoli where they interface with capillaries. Hope this helps.
The air that is inhaled passes through the throat. More specifically, it passes through the trachea on its way to the lungs.
Oxygen passes through the nasal cavity, pharynx, trachea, bronchi, bronchioles, and finally reaches the alveoli in the lungs where gas exchange occurs with the bloodstream.
When an oxygen molecule passes through the trachea, it travels through the airway as part of the respiratory process. The trachea, lined with cilia and mucus, helps filter, warm, and humidify the air before it reaches the lungs. As the oxygen continues into the bronchi and eventually the alveoli, it is prepared for gas exchange, where it will diffuse into the bloodstream to be transported to cells throughout the body.
The heart, lungs, kidneys, and liver are the four major organs through which the blood passes in the body. The heart pumps oxygen-rich blood to the lungs for oxygenation, then to the kidneys and liver for filtering and detoxification before circulating back to the heart.
Trachea
oxygen passes through the pleural cavity to blood( red blood cells)
It passes through the lungs.
oxygen
The trachea, also known as the windpipe, is responsible for carrying air to and from the lungs. It is lined with a mucous membrane that helps to trap any dust or particles in the air before it reaches the lungs, protecting the respiratory system. The trachea also contains C-shaped rings of cartilage which provide structure and prevent it from collapsing.