Respiratory system

respiratory 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 respiratory tract comprises the nose, throat , windpipe , bronchi and lungs An online study is learning about the respiratory

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

Human Respiratory System · We take in oxygen from the atmosphere with our nostrils · The pharynx opens into the trachea through the larynx · Each bronchus 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