During normal expiration, the diaphragm generally

Options

  • A. Contracts strongly
  • B. Relaxes and becomes dome-shaped
  • C. Flattens further
  • D. Moves downward while contracting
  • E. Becomes permanently contracted

Correct Answer (Detailed Explanation is Below)

B. Relaxes and becomes dome-shaped

Detailed Explanation

During normal expiration, the diaphragm relaxes and returns toward its dome-shaped position, helping reduce thoracic volume.