MEDN2001 Lecture Notes - Lecture 6: Cellular Respiration, Gas Exchange, Respiratory System
Document Summary
Ventilation is the movement of air in and out of the lungs through breathing. Respiration involves gas exchange and close coordination with the circulatory system. Cellular respiration is the metabolism of nutrients in the cells using oxygen and releasing carbon dioxide as waste. External respiration involves the exchange of oxygen and carbon dioxide between the external environment and tissue. The respiratory system works with the circulatory system to maintain oxygen and carbon dioxide balance in the body by supplying oxygen and getting rid of carbon dioxide. Supplies oxygen, gets rid of carbon dioxide waste. Left lung a little smaller - the heart sits on the left - same function as the right though. Located at the ends of the respiratory tree . Typical pair of human lungs contains around 700 million alveoli. Ventilation is the movement of air in and out of the lungs through breathing - not about the oxygen and carbon dioxide specifically, just about air.
