Question | Answer |
What are the functions of the respiratory system? | 1) Extensive surface area for gas exchange between air and circulating blood
2) Moving air to and from exchange surfaces of lungs
3) Protection from dehydration, temperature changes, or environmental variations
4) Producing sounds
5) Detecting odours |
What makes up the upper respiratory system? | Nose, nasal cavity, paranasal sinuses, pharynx |
What makes up the lower respiratory system? | Larynx, trachea, bronchi, bronchioles, alveoli |
What are the two different sections of the respiratory tract? | Conducting portion and the respiratory portion |
Where does the conduction portion of the respiratory tract begin and end? | Begins at entrance to the nasal cavity and extends to the pharynx, larynx, trachea, bronchi, and large bronchioles |
What does the respiratory portion of the respiratory tract include? | Smallest bronchioles and associated alveoli |
Where does the blood supply enter the lungs? | At the hilum |
What are the two layers of pleura? | Parietal and Visceral |
Where does the parietal pleura adhere to? | Covers the inner surface of the thoracic wall and extends over the diaphragm and mediastinum |
Where does the visceral pleura adhere to? | Covers the outer surface of the lungs, extending into the fissures between the lobes |
Which is the innermost layer of pleurae? | The visceral pleura |