Diagram Of Air Entering The Lungs. Lungs are simple and. The reduction in the partial pressure of oxygen in the inhaled air is therefore substantially greater than the reduction of the total.
Breathing or ventilation is the process of taking air into and out of the lungs. The air entering the lungs also has a total pressure of 337 kpa of which 63 kpa is unavoidably water vapor as it is at sea level. This air then passes.
Oxygen travels from your alveoli into your bloodstream and carbon dioxide travels the other way from your bloodstream into your alveoli.
During inhalation air enters through the nasal cavity and mouth traveling through the pharynx larynx and bronchi the two primary branches of the trachea to finally reach the lungs 15. Rather than having a diaphragm to force air in and out of lungs the saurischians had lungs attached to a series of thin walled air sacs that appear to have functioned something like bellows to move air through the body. The more muscular ventricles pump the blood out of the heart. The tadpoles stop feeding they are nourished on the substance of the tail.