Physiology At the sta of inspiration, the intrapleural pressure at the base of the lungs is A 1.5 mm of Hg B 1 mm of Hg C 2.5 mm of Hg D 6 mm of Hg 💡 Explanation At the sta of inspiration, the intrapleural pressure at the base of the lungs is ✓ Correct Answer: C. 2.5 mm of Hg