With aging, what changes can be expected in the costal cartilages and thoracic compliance?
A) the costal cartilages remain unchanged but the thoracic compliance will decrease
B) costal cartilages calcify causing a downward slant of the ribs making the thorax less compliant
C) costal cartilages become more compliant causing the thorax to become more compliant
D) the costal cartilages remain unchanged but the thoracic compliance increases

Question

Quizplus · Accepted Answer

With aging, the costal cartilages tend to calcify, which can cause the ribs to slant downward. This change in the structure of the thorax makes it less compliant, meaning it becomes harder for the thorax to expand and contract, affecting breathing.

With Aging, What Changes Can Be Expected in the Costal