Which is a normal finding when assessing the respiratory system of an older adult?

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The costal cartilages become calcified with aging, resulting in a less mobile thorax. Chest expansion may be somewhat decreased, and the chest cage commonly shows an increased anteroposterior diameter. The costal cartilages become calcified with aging, resulting in a less mobile thorax and thus also a slight decrease, not increase, in thoracic expansion. The chest cage commonly shows an increased, not a decreased, anteroposterior diameter and bronchovesicular breath sounds are not found throughout the lungs.

Which Is a Normal Finding When Assessing the Respiratory System