Hey Dr. Milson, How is oxygen transported in the Respiratory system?
Well Sandra, Oxygen is taken in through the nasal and oral cavities, it travels through your throat. Your pharynx, epiglottis, and larynx are in your throat.
The oxygen continues to the Trachea tube, which is still in the throat but is the final passage of oxygen before entering the Lungs through the Bronchi. The Bronchi are tubes that allow rapid air flow into the lungs.
After travelling into the Lungs through the Bronchi, Oxygen travels through the Bronchiole tubes that are in the lungs, towards the Alveoli.
The Alveoli increase the surface area in the lungs when oxygen is absorbed. this causes gas exchange to occur causing the absorption of oxygen into the blood through the capillaries.
Capillaries are blood vessels that surround the Alveoli. This is how Oxygen is absorbed into the bloodstream.