MN 551 Midterm Review Purdue University Test Questions And Correct Answers.

What is the primary role of mucociliary blanket? - Answer Trap foreign objects and bacteria which doesn't allow entry to the lungs What do the vocal cords contribute when it involves swallowing? - Answer They contribute to blocking of airways when swallowing, thus preventing food from entering the lungs. What is aspiration pneumonia? - Answer 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 consist of - Answer trachea, bronchi, and bronchioles Which type of pneumonia are you at high risk if the swallowing mechanism is impaired? - Answer 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 - Answer True True or False... Airway Airflow is inversely related to the resistance that the air encounters as it moves through the airways - Answer True What is the priniciple muscle for inspiration? What is the motion when contracted? - Answer diaphragm. the abdominal contents move downward and forward. What is lung compliance? - Answer It is the stretchability of our lungs. The more the lungs can expand the more the compliance. What determines lung compliance? - Answer elastin and collagen fibers of lung, its water content, and surface tension What muscles are involved in expiration? - Answer 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