Q:

How does blood circulate through the body?

A:

Quick Answer

Blood circulation is regulated by the circulatory system, and blood is distributed throughout the body by the heart. It flows from the heart into arteries that branch into smaller veins and capillaries.

Know More

Full Answer

Muscle contractions in the heart pump blood into the arteries, which can then reach other parts of the body through veins and capillaries, providing oxygenated blood to cells. Capillaries have thin walls that allow red blood cells to carry oxygen and nutrients to tissues in the body while removing carbon dioxide waste from the tissues. The blood is then sent back to the heart through a series of veins and arteries to be reused.

Learn More

Related Questions

  • Q:

    What are the three types of circulation?

    A:

    The three types of circulation that make-up the circulatory system of the body are systemic circulation, pulmonary circulation and portal circulation, according to the Franklin Institute. The three systems work together to ensure proper oxygenation and blood flow throughout the body.

    Full Answer >
    Filed Under:
  • Q:

    What does the circulatory system do?

    A:

    The main function of the circulatory system is transporting blood, oxygen, hormones, nutrients and other important substances throughout the body. The circulatory system is actually two separate systems of circulation, pulmonary and systemic, both of which interact with the heart and cardiovascular system to pump blood throughout that system.

    Full Answer >
    Filed Under:
  • Q:

    What is a blood vessel that carries blood toward the heart?

    A:

    A vein is a blood vessel that carries blood toward the heart. There are four main types of veins: pulmonary and systemic, and superficial and deep.

    Full Answer >
    Filed Under:
  • Q:

    Where does the blood enter and leave the heart?

    A:

    Blood enters the right side of the heart via the inferior and superior vena cava and the left side of the heart via the pulmonary vein. It empties from the heart via the pulmonic valve on the right and the aortic valve on the left.

    Full Answer >
    Filed Under:

Explore