QuestionJuly 6, 2025

Which of the following occurs during expiration? diaphragm moves superiorly volume in the thoracic cavity decreases pressure in the pleural cavity increases all of these none of these

Which of the following occurs during expiration? diaphragm moves superiorly volume in the thoracic cavity decreases pressure in the pleural cavity increases all of these none of these
Which of the following occurs during expiration?
diaphragm moves superiorly
volume in the thoracic cavity decreases
pressure in the pleural cavity increases
all of these
none of these

Solution
4.3(238 votes)

Answer

all of these Explanation 1. Identify diaphragm movement During expiration, the diaphragm moves superiorly (upward). 2. Analyze thoracic cavity volume change The volume in the thoracic cavity decreases during expiration. 3. Examine pleural cavity pressure change Pressure in the pleural cavity increases during expiration. 4. Determine correct option All of these occur during expiration.

Explanation

1. Identify diaphragm movement<br /> During expiration, the diaphragm moves superiorly (upward).<br /><br />2. Analyze thoracic cavity volume change<br /> The volume in the thoracic cavity decreases during expiration.<br /><br />3. Examine pleural cavity pressure change<br /> Pressure in the pleural cavity increases during expiration.<br /><br />4. Determine correct option<br /> All of these occur during expiration.
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