Inhalation/Inspiration
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.
This process is called gas exchange. In the lungs, oxygen enters the bloodstream through diffusion across the alveolar membrane, where it binds to hemoglobin in red blood cells for transportation to tissues.
Oxygen enters our body through the process of respiration. When we inhale, air containing oxygen enters our lungs. The oxygen then diffuses from the air sacs in the lungs into the bloodstream, where it is carried by red blood cells to tissues throughout the body.
It's called drowning.
It's called the "bronchial tree".
They are called alveoli
they enter the lungs in order to obtain oxygen and get rid of carbon dioxide. this process occurs in the alveolus of the lungs by diffusion.
Pulmonary oedema
Passages through which air enters the lungs is called the bronchi which branch off of the trachea.
When we breathe in, oxygen enters through the nose or mouth and travels down the windpipe (trachea) into the lungs. In the lungs, oxygen is absorbed by tiny air sacs called alveoli and then enters the bloodstream through tiny blood vessels called capillaries. The oxygen-rich blood is pumped from the lungs to the rest of the body by the heart, where it is used for energy production in cells through a process called cellular respiration.
Oxygen enters the blood through the thin walls of the alveoli in the lungs during the process of respiration. This occurs through a process called diffusion, where oxygen moves from an area of high concentration in the alveoli to an area of lower concentration in the blood vessels surrounding the alveoli.