Physiology Normal Intrapleural Pressure is Negative because A The chestwall and lungs recoil in opposite directions B The surfactant prevents pulmonary collapse C Intrapulmonary Pressure is Negative D Tranplmonary Pressure is Negative 💡 Explanation Normal Intrapleural Pressure is Negative because ✓ Correct Answer: A. The chestwall and lungs recoil in opposite directions