respiratory system

respiratory system   Dan digestive system

Jeremy P T Ward, Jane Ward, Richard M Leach Lungs The respiratory system consists of a pair of lungs within the thoracic cage Its main

Where does gas exchange between air and the lungs occur? B Distinguish between the conducting portion and respiratory portion of the respiratory tract  The lungs and respiratory system allow us to breathe They bring oxygen into our bodies and send carbon dioxide out (called

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