Respiratory

Question 1

Is closing capacity more or less than FRC, and what does this mean?

Answer 1

Closing capacity is usually less than FRC, so airways remain open throughout respiration

Question 2

What happens when closing capacity is greater than the FRC? And what increases closing capacity

Answer 2

When closing capacity is greater than FRC early early closure occurs during expiration, leading to air trapping and possibly absorption atelectasis. Closing capacity increases with age COPD and pulmonary Adema