Increasing age is a risk factor for developing heart failure. Which of the following is a physiological change in the heart associated with aging?
A) Fibrous tissue and fat deposits in the SA node
B) Atrophy of heart muscle
C) Thickening of the heart wall
D) All of the above

Question

Quizplus · Accepted Answer

The normal physiological changes in the heart that predispose an aging individual to heart failure include fibrous tissue and fat deposits in the heart's conduction system, slight atrophy of the heart muscle, and thickening of the heart wall. These changes decrease heart rate, cardiac output, and pumping capacity, respectively.

Increasing Age Is a Risk Factor for Developing Heart Failure