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1. www.hopkinsmedicine.org › health › conditions-andAnatomy and Function of the Heart's Electrical System

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   The heart's pumping action is regulated by an electrical conduction system that coordinates the contraction of the various chambers of the heart. How does the heart beat? An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node).

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2. www.ncbi.nlm.nih.gov › books › NBK279249In brief: How does the heart work? - InformedHealth.org ...

   www.ncbi.nlm.nih.gov › books › NBK279249

   Jun 6, 2023 · The heart is a hollow muscle. A wall through the middle (known as the septum) divides it into two halves. Each half has two chambers called the atrium and ventricle. The left ventricle pumps oxygen-rich blood out of the heart and into the body (systemic circulation) through an artery called the aorta.

   • Published: 2023/06/06

3. Videos

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     How a Normal Heart Pumps Blood -- The Children's Hospital of Philadelphia

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     How a Healthy Heart Pumps Blood

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     Cardiac Action Potential, Animation.

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4. www.nhlbi.nih.gov › health › heartHow the Heart Works - How the Heart Beats - NHLBI, NIH

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   Mar 24, 2022 · As the signal travels, it causes the heart to contract and pump blood. The heartbeat process includes the following steps. The signal begins in a group of cells, called pacemaker cells, located in the sinoatrial (SA) node in the right atrium.

5. byjus.com › biology › heart-pump-of-the-circulatoryHeart - Pump Of The Circulatory System - Function of the Heart

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   Sino-atrial node (SA node) and atrioventricular node (AV node) are the two nodal tissues present in the human heart and it is mainly involved in helping the heart to produce its own action potential (impulses). This action potential results in the contraction of cardiac muscles (heart muscles) and causes the pumping of blood.

6. www.stanfordchildrens.org › en › topicAnatomy and Function of the Heart's Electrical System

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   The heart is a pump made up of muscle tissue. Like all muscle, the heart needs a source of energy and oxygen to work. The heart's pumping action is controlled by an electrical system. This system that organizes how the chambers of the heart contract and pump blood.

7. www.healthline.com › health › heart-diseaseHow Your Heart Works - Healthline

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   Sep 21, 2018 · The heart’s two ventricles are located in the bottom of the heart. They are responsible for pumping blood into your arteries.

8. People also ask

   How does the heart pump blood?

   • The heart's pumping action is controlled by an electrical system. This system that organizes how the chambers of the heart contract and pump blood. How does the heart beat? Normally, as the electrical impulse moves through the heart, the heart contracts about 60 to 100 times a minute. The rate depends on a person's age.

   Anatomy and Function of the Heart's Electrical System

   www.stanfordchildrens.org/en/topic/default?id=anatomy-and-function-of-the-hearts-electrical-system-85-P00214

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   Which part of the heart pumps oxygenated blood?

   • Left atrium. This chamber receives oxygenated blood from the pulmonary veins of the lungs and pumps it to the left ventricle. Left ventricle. With the thickest muscle mass of all the chambers, the left ventricle is the hardest pumping part of the heart, as it pumps blood that flows to the heart and rest of the body other than the lungs.

   How Your Heart Works - Healthline

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   Which part of the heart pumps the most blood?

   • Left ventricle. With the thickest muscle mass of all the chambers, the left ventricle is the hardest pumping part of the heart, as it pumps blood that flows to the heart and rest of the body other than the lungs. The heart’s two atria are both located on the top of the heart. They are responsible for receiving blood from your veins.

   How Your Heart Works - Healthline

   www.healthline.com/health/heart-disease/how-heart-works

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   How does the heart work?

   • In the simplest terms, the heart is a pump made up of muscle tissue. Like all muscle, the heart needs a source of energy and oxygen to function. The heart's pumping action is regulated by an electrical conduction system that coordinates the contraction of the various chambers of the heart. How does the heart beat?

   Anatomy and Function of the Heart's Electrical System

   www.hopkinsmedicine.org/health/conditions-and-diseases/anatomy-and-function-of-the-hearts-electrical-system

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   What is the function of the heart?

   • The heart provides the body’s organs and tissues with a constant supply of blood – and with it vital oxygen and nutrients. You can think of the heart as a central pump that keeps the blood circulating around the body. At rest, an adult heart beats about 60 to 80 times a minute. Each time the heart beats it pumps blood through the body.

   In brief: How does the heart work? - InformedHealth.org - NCBI Booksh…

   www.ncbi.nlm.nih.gov/books/NBK279249/

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9. www.bhf.org.uk › how-a-healthy-heart-worksHow your heart works – Heart and circulatory system – British ...

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   myocardium, a thick, muscular middle layer that squeezes (contracts) and relaxes to pump blood out of the heart to the rest of your body. endocardium, a thin, inner layer that makes up the lining of the 4 chambers and the valves in your heart.