Q:

How often does blood circulate through the body?

A:

Quick Answer

According to Santa Barbara City College, for an average person, the entire volume of blood in the circulatory system is pumped through the heart approximately once per minute. The average person has 5 liters of blood in their circulatory system and a cardiac output of 4.9 liters per minute.

Continue Reading
How often does blood circulate through the body?
Credit: Fanatic Studios N/A Getty Images

Full Answer

Santa Barbara City College defines cardiac output as the volume of blood pumped by the heart per minute. This is calculated as the heart rate multiplied by the stroke volume of blood pumped by the heart with each beat. The average person has a resting heart rate of 70 beats per minute, and a stroke volume of 70 milliliters per beat, according to SBCC. This equals a cardiac output of 4900 milliliters per minute.

Learn more about Blood
Sources:

Related Questions

  • Q:

    What does it mean if you have dark-colored blood?

    A:

    Dark-colored blood, called venous blood, is dark because it has become deoxygenated after having traveled through the body before returning to the heart drained of oxygen. Blood leaving the heart, called arterial blood, is pumped from the lungs back to the heart by the pulmonary artery, and it contains a large amount of oxygen for delivery around the body. Arterial blood, therefore, appears a brighter red than deoxygenated venous blood.

    Full Answer >
    Filed Under:
  • Q:

    What are the three main parts of the circulatory system?

    A:

    The three main parts of the circulatory system are the heart, the blood and the blood vessels. The purpose of the circulatory system is to transport oxygen throughout the body.

    Full Answer >
    Filed Under:
  • Q:

    How does the circulatory system maintain homeostasis?

    A:

    The circulatory system maintains homeostasis by the controlled and continuous flow of blood that reaches each cell in the body. The mechanisms within the circulatory system ensure that every cell maintains a constant internal environment.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of the circulatory system?

    A:

    The circulatory system allows blood to circulate throughout the body and transport nutrients, oxygen, hormones, carbon dioxide and blood cells to every part of the body in order to nourish it and help the body fight diseases. It also helps stabilize the normal body temperature and pH, maintaining homeostasis.

    Full Answer >
    Filed Under:

Explore