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MN 551 Midterm Review Questions and Answers (Purdue University)
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MN 551 Midterm Review Questions and Answers (Purdue University)
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MN 551 Midterm Review Questions andAnswers (Purdue University)
What is the primary role of mucociliary blanket? - -Trap foreign objects and
bacteria which doesn't allow entry to the lungs
-What do the vocal cords contribute when it involves swallowing? - -They
contribute to blocking of airways when swallowing, thus preventing food
from entering the lungs.
-What is aspiration pneumonia? - -is a type of lung infection that is due to a
relatively large amount of material from the stomach or mouth entering the
lungs
-What does the Tracheobronchial Tree consists of - -trachea, bronchi, and
bronchioles
-Which type of penumonia are you at high risk if the swallowing mechanism
is impaired? - -aspiration pneumonia
-True or False... Volume of air that moves into and out of the air exchange
portion of the lungs is directly related to pressure difference between the
lungs and atmosphere - -True
-True or False... Airway Airflow is inversely related to the resistance that the
air encounters as it moves through the airways - -True
-What is the priniciple muscle for inspiration? What is the motion when
contracted? - -diaphragm. the abdominal contents move downward and
forward.
-What is lung compliance? - -It is the stretchability of our lungs. The more
the lungs can expand the more the compliance.
-What determines lung compliance? - -elastin and collagen fibers of lung, its
water content, and surface tension
-What muscles are involved in expiration? - -Expiration of the lungs is
usually passive. Relaxing the inspiratory muscles allows the elastic recoil of
the lungs to reduce the volume of the thoracic cavity passively
-What are the 4 forces overcome by the respiratory muscles? - -1. Elastic
recoil of the lungs, measured as compliance
2. Elastic recoil of the chest wall
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