Q:

Which heart chamber has the thickest muscle wall?

A:

Quick Answer

The heart chamber with the thickest muscle wall is the left ventricle. Ventricles are the lower two chambers, whereas the atria are the upper two chambers of the heart. The two ventricles have thicker muscular walls than the two atria.

Know More
Which heart chamber has the thickest muscle wall?
Credit: Elin B CC-BY-2.0

Full Answer

The atria receive blood from the veins. When they contract, blood transfers from the atria to the ventricles, so the atria do not need to be as muscular as the ventricles.The ventricles of the heart have thicker muscular walls because they pump blood throughout the body. The pressure created in the ventricles causes blood to rush into the large arteries of the body such as the aorta and the pulmonary artery. The left ventricle is twice as muscular as the right because it has to do more work by pumping blood to all the organs of the body. In contrast, the right ventricle only pumps deoxygenated blood to the lungs, which are a short distance away.

Related Questions

  • 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 type of muscle tissue is found in the heart?

    A:

    According to About.com, cardiac muscles are found in the heart. Wikipedia explains that cardiac muscle is involuntary, meaning not under conscious control. It appears striated and is found in the walls of the heart, specifically the myocardium. Cardiac muscle cells rely on an available blood and electrical supply to deliver nutrients and oxygen, and remove waste products such as carbon dioxide.

    Full Answer >
    Filed Under:
  • Q:

    What does the left ventricle do?

    A:

    The left ventricle is the main pumping chamber of the heart, and it is responsible for pumping oxygen-rich blood to the entire body, as stated by the American Heart Association. The human heart consists of four chambers: the right atrium, the right ventricle, the left atrium and the left ventricle. While each chamber has a unique function, they all work together to form a strong, hard-working pump.

    Full Answer >
    Filed Under:
  • Q:

    What is the function of the left ventricle?

    A:

    The left ventricle of the heart pumps oxygenated to the organs of the body. The ventricular septum keeps the left and right ventricles separate. The left ventricle is the more muscular of the two ventricles.

    Full Answer >
    Filed Under:

Explore