Sitemap

health advisory Hospital Diseases 2007-11-12 20:35:17

Answer:

Respiratory system ?

---

Respiratory system. Three parts to it: ventilation, perfusion, respiration. The gas exchange occurs in the alveolae of the lungs, little tiny sacs, one cell thick, very permeable.

---

cardio-pulmonary system. the heart and lung must collaborate in the loading of oxygen ( O2) and unloading of carbon dioxide

( CO2). when one begins to look at the cellular level of respiration then you must explore the metabolic chemistry on the cellular level to understand what is taking place with the molecules of those two gases. still the C-P system must interact at the molecular level in order to really do the job you are asking about.

---

http://www.kidshealth.org/teen/your_body...

"Respiration is the term for the exchange of oxygen from the environment for carbon dioxide from the body's cells. The process of taking air into the lungs is called inhalation or inspiration, and the process of breathing it out is called exhalation or expiration."

---