Unit 4: Respiratory system anatomy and physiology

The respiratory tract has two major divisions: the upper respiratory tract and the lower respiratory tract The organs in each division are

Through breathing, inhalation and exhalation, the respiratory system facilitates the exchange of gases between the air and the blood and between

system789 Respiratory system Among quadrupeds, the respiratory system generally includes tubes, such as the bronchi, used to carry air to the lungs,

operating system The respiratory system includes the inhalation of air, which is then channeled into the alveoli of the lungs to deliver oxygen to the circulatory system, and