respiratory system

respiratory system   Dan succubus system

How does the respiratory system work? There are two phases of breathing: in and out As a person inhales, the diaphragm contracts and moves

The main functions of the respiratory system are to obtain oxygen from the external environment and supply it to the cells and to remove from the body the Where does gas exchange between air and the lungs occur? B Distinguish between the conducting portion and respiratory portion of the respiratory tract

ถุงปัสสาวะ Respiratory system The respiratory system is made up of the organs included in the exchange of oxygen and carbon dioxide The respiratory system is divided Canalicular Stage: Weeks 16-26 Throughout the canalicular stage, the respiratory bronchioles develop, budding off from the terminal bronchioles