The term used to describe the amount of blood ejected from the heart per minute is called?

The term that describes the amount of blood ejected from the heart per minute is known as cardiac output. Cardiac output is a crucial measurement as it reflects the efficiency of the heart in supplying blood to the body’s tissues and organs. It is calculated by multiplying the stroke volume (the amount of blood ejected with each heartbeat) by the heart rate (the number of heartbeats per minute). Therefore, if one wants to understand how effectively the heart is functioning over time, cardiac output provides an essential insight.

Heart rate alone refers to the number of times the heart beats within a given time frame, typically one minute, but without considering the volume of blood pumped with each beat. Stroke volume, on the other hand, is the amount of blood ejected with each heartbeat but does not reflect overall blood flow over time. Blood pressure indicates the force of circulating blood against the walls of blood vessels, which, while important for cardiovascular health, does not specifically measure the volume of blood pumped by the heart per minute. Each of these terms serves a distinct purpose in cardiovascular physiology, but cardiac output is specifically focused on the volume of blood ejected from the heart in a set period.