By 2030, According to Projections, People Over the Age of Sixty-Five

question 26

Multiple Choice

By 2030, according to projections, people over the age of sixty-five will represent what percentage of the U.S.population?

• A)2 percent
• B)20 percent
• C)30 percent
• D)50 percent

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Definitions:

Pulmonary Emphysema

A lung condition that causes shortness of breath due to over-inflation of the air sacs in the lungs.

Alveoli

Tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be expelled.

Bicarbonate

An anion (HCO3-) that plays a critical role in maintaining the pH balance in blood and other bodily fluids.

Mechanics Of Breathing

The physiological processes involved in the movement of air into and out of the lungs, primarily driven by the diaphragm and intercostal muscles.