(BIOD 331) 5.2: Mechanics of Breathing and Lung Function | Questions with Correct Answers 100% PASS

(BIOD 331) 5.2: Mechanics of
Breathing and Lung Function |
Questions with Correct Answers
100% PASS

Ventilation—ANSWER--Mechanical process using pressure differences to move air in and

out of lungs


Intrapulmonary Pressure—ANSWER--Pressure inside airways and alveoli, equal to

atmospheric pressure at rest


Intrapleural Pressure—ANSWER--Pressure in pleural cavity, negative relative to

intrapulmonary pressure


Intrathoracic Pressure—ANSWER--Pressure in thoracic cavity, equal to intrapleural pressure


Diaphragm—ANSWER--Main muscle of inspiration, innervated by C3, C4, and C5


Paradoxical Movement—ANSWER--Chest moves up on paralyzed diaphragm side during

inspiration


Lung Compliance—ANSWER--Ease with which lungs can inflate, influenced by water content

and fibers