During normal inspiration, the diaphragm

Options

  • A. Contracts and flattens
  • B. Relaxes and arches
  • C. Stops moving
  • D. Moves upward and contracts
  • E. Becomes permanently rigid

Correct Answer (Detailed Explanation is Below)

A. Contracts and flattens

Detailed Explanation

During inspiration, the diaphragm contracts and moves downward, becoming flatter and increasing thoracic volume.