Effects of Increased Heart Rate During Exercise

The human cardiovascular system plays a crucial role in maintaining the body’s homeostasis through the regulation of blood flow and pressure. During exercise, the heart rate increases to meet the oxygen demands of the muscles. Additionally, the autonomic nervous system adjusts the distribution of blood flow to prioritize skeletal muscle. Several hormones, such as epinephrine and norepinephrine, also influence heart rate and contractility. Understanding the physiological mechanisms that control heart rate is vital for predicting how the body reacts to different physical stresses.

Which of the following statements accurately describes an effect of increased heart rate during exercise?