A physiological change in the cardiovascular system that occurs due to aging is ______.
A) red blood cells become less able to carry oxygen
B) the heart becomes too flexible
C) the heart becomes less responsive to signals to contract
D) arteries decrease in rigidity

Question

Quizplus · Accepted Answer

As we age, the electrical signals that regulate heart rate and rhythm can become less efficient, leading to a decreased response to signals that tell the heart to contract. This can lead to a decrease in overall heart function and increased risk of cardiovascular disease.

A Physiological Change in the Cardiovascular System That Occurs Due