Lab #9 McGraw Hill

Question 1

What does the expansion of the thoracic cage lead to?

Answer 1

An increase in lung volume

*The lungs are pressed against the internal thoracic cage. Therefore, expansion of the thoracic cage increases the lung volume by stretching the lungs.

Question 2

What is the result of atmospheric pressure being equal to intrapleural pressure? (If the bell jar was cracked?)

Answer 2

Lungs would not inflate.

Question 3

You selected restrictive. However, Fred is a unique patient that underscores the importance of a physical examination. His patient history correctly suggests factors that can lead to both obstructive and restrictive disorders. Which part of Fred’s history suggests a possible obstructive disorder?

Answer 3

Smoking is the most common factor in contributing to obstructive disorders.