Why is the heart considered a double pump?
Credit: stuartpilbrow CC-BY-SA 2.0
Q:

Why is the heart considered a double pump?

A:

Quick Answer

The heart is a single organ, but it functions as a double pump sending oxygen-depleted blood to the lungs to pick-up oxygen and unload carbon dioxide, while simultaneously sending oxygen-loaded blood coming from the lungs to cells throughout the body. The heart's right ventricle pumps blood to the lungs, while the left ventricle pumps the oxygenated blood to the body cells. The left ventricle is the stronger of the two and performs the more demanding part of the double-pump work.

  Know More

Full Answer

In addition to moving oxygen throughout the body, the heart also helps deliver nutrients and pick-up waste products. The adult human heart is around the size of a fist, and its double-pumping action moves blood throughout the body about 1,000 times a day. All animals with a circulatory system possess a heart, including invertebrates, although the organ's actual structure can vary among different species.

Learn more about Organs

Related Questions

  • Q:

    What is the function of the right ventricle?

    A:

    The right ventricle pumps low-pressure blood from the heart to the lungs, where it is recharged and returned for delivery to the rest of the body. According to Mayo Clinic, the right ventricle receives blood from the right atrium through the tricuspid valve and delivers its blood through the pulmonary arteries.

    Full Answer >
    Filed Under:
  • Q:

    Why does predicted vital capacity vary with height?

    A:

    The variances in predicted vital capacity as related to height has to do with the size of the lungs and amount of room for the diaphragm to expand inside the body. Height is only one factor that is calculated into the vital capacity measurements.

    Full Answer >
    Filed Under:
  • Q:

    Is the heart a muscle?

    A:

    The heart is a muscular organ that pumps blood throughout the body, according to the National Institute of Health. Located near the center of the chest, the muscular portion of the chest is located more on the left side of the chest cavity.

    Full Answer >
    Filed Under:
  • Q:

    What happens to dead brain cells?

    A:

    Dead brain cells, or neurons, are eliminated through phagocytosis, a process performed by scavenger cells in the body called phagocytes, states Medical News Today. During neurogenesis (birth of neurons), thousands of brain cells are produced, yet only a small fraction of them survive as the rest die.

    Full Answer >
    Filed Under:

Explore