Question

Between breaths the intrapleural pressure is approximately.....................mm of Hg.

• A. $1$
• B. -$4$
• C. -$8$
• D. $10$

Answer 1

Answer: (B)

-$4$

Intrapleural pressure is the pressure within the pleural space. It is also called as intrathoracic pressure. Between breaths the intrapleural pressure is approximately -4 mm of Hg throughout the breathing cycle.

Thus, the correct answer is option B.