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Respiratory system

Week 1 - Respiratory system

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
Created by: Sandersem2



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