Definition of respiratory system

Respiratory System respiratory system

Basic types of respiratory structures Respiratory structures are tailored to the need for oxygen Minute life-forms, such as protozoans, exchange oxygen and

system789 The lower respiratory tract consists of the trachea , bronchial tubes, and lungs The bronchial tubes carry air into the lungs and branch into smaller The respiratory system takes up oxygen from the air we breathe and expels the unwanted carbon dioxide  When we breathe, the respiratory system takes in oxygen and sends out carbon dioxide The cells in our bodies need fresh oxygen to stay alive

ตรวจหวย 16 กุมภาพันธ์ 2565 ออนไลน์ 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