Main Menu » Organs & Systems » Respiratory Overview of the respiratory system Overview 1 Overview 2 Overview 3 Overview 4 Overview 5 Overview 6 Overview 7 Extrapulmonary Passages Overview of extrapulmonary passageways Overview 1 Nasal Cavity Nasal cavity 1 Nasal cavity 2 Nasal cavity 3 Nasal cavity 4 Nasal cavity 5 Nasal cavity 6 Larynx Larynx 1 Larynx 2 Trachea and Primary Bronchus Trachea 1 Trachea 2 Trachea 3 Trachea 4 Trachea 5 Trachea 6 Trachea 7 Trachea 8 Trachea 9 Intrapulmonary Passageways Overview of intrapulmonary passageways Overview 1 Conducting Secondary Bronchus Secondary bronchus 1 Secondary bronchus 2 Secondary bronchus 3 Secondary bronchus 4 Secondary bronchus 6 Secondary bronchus 7 Bronchiole Bronchiole 1 Bronchiole 2 Bronchiole 3 Bronchiole 4 Bronchiole 5 Bronchiole 6 Bronchiole 7 Bronchiole 8 Bronchiole 9 Bronchiole 10 Respiratory Overview of respiratory intrapulmonary passageways Respiratory Bronchiole Respiratory Bronchiole 1 Respiratory bronchiole 2 Respiratory bronchiole 3 Respiratory bronchiole 4 Respiratory bronchiole 5 Respiratory bronchiole 6 Respiratory bronchiole 7 Alveolar Duct Alveolar duct 1 Alveolar duct 2 Alveolar duct 3 Alveolar duct 4 Alveolar duct 5 Alveolar duct 6 Alveoli Alveoli 1 Alveoli 2 Alveoli 3 Alveoli 4 Alveoli 7 Alveoli 5 Alveoli 6 Alveoli 8 Blood Supply Overview of blood supply Overview (blood supply) 1 Bronchial Blood Vessels Bronchial blood vessels 1 Bronchial blood vessels 2 Bronchial blood vessels 3 Pulmonary Artery Pulmonary artery 1 Pulmonary artery 2 Pulmonary artery 3 Pulmonary artery 4 Pulmonary Capillaries Pulmonary capillaries 1 Pulmonary capillaries 2 Pulmonary Vein Pulmonary vein 1 Pulmonary vein 2 Pulmonary vein 3 Pleura Pleura 1 Pleura 2