Problem 10

When a person is paralyzed, the caudal displacement of the muscle with contraction is eliminated, and the limit of chest expansion is diminished and maintained. Because of the diaphragm's forceful displacement, the nearby lung is compressed, reducing regional ventilation. As a result, more negative pressure is maintained in the contralateral hemithorax, allowing waste airflow from the affected to the unaffected lung to be released. Reduced perfusion is frequently linked to decreased regional ventilation.