On maximal expiration, the diaphragm may be:
A) as high as the fourth intercostal space anteriorly.
B) as high as the second intercostal space anteriorly.
C) as low as the ninth intercostal space anteriorly.
D) as low as the eleventh intercostal space anteriorly.

Question

Quizplus · Accepted Answer

During maximal expiration, the diaphragm moves upwards and can reach as high as the fourth intercostal space anteriorly. This is due to the contraction and upward movement of the diaphragm as it pushes air out of the lungs.

On Maximal Expiration, the Diaphragm May Be