In the relaxation volume-pressure curves, the respiratory muscles are relaxed and the requirement for muscular involvement is shown by a positive pressure. In these curves, expansion of the chest wall alone requires a positive pressure Pchest wall = Ppl - PB (Ppl is the intrapleural pressure and PB is the b arom etric o r am bien t air pre ssu re ou tside o f the b ody). A) Over the entire range of chest and lung volumes B) Only for volumes FRC C) Only for volumes

Question

In the relaxation volume-pressure curves, the respiratory muscles are relaxed and the requirement for muscular involvement is shown by a positive pressure. In these curves, expansion of the chest wall alone requires a positive pressure Pchest wall = Ppl - PB (Ppl is the intrapleural pressure and PB is the b arom etric o r am bien t air pre ssu re ou tside o f the b ody).
A) Over the entire range of chest and lung volumes
B) Only for volumes > FRC
C) Only for volumes < FRC
D) Only for large volumes greater than the volume at normal end inspiration
E) Only for small volumes less than the volume at normal end inspiration

Quizplus · Accepted Answer

The Answer of In the relaxation volume-pressure curves, the respiratory muscles are relaxed and the requirement for muscular involvement is shown by a positive pressure. In these curves, expansion of the chest wall alone requires a positive pressure Pchest wall = Ppl - PB (Ppl is the intrapleural pressure and PB is the b arom etric o r am bien t air pre ssu re ou tside o f the b ody).
A) Over the entire range of chest and lung volumes
B) Only for volumes > FRC
C) Only for volumes < FRC
D) Only for large volumes greater than the volume at normal end inspiration
E) Only for small volumes less than the volume at normal end inspiration

In the Relaxation Volume-Pressure Curves, the Respiratory Muscles Are Relaxed