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     onlinelibrary.wiley.com

     • They are the: Epicardium: This thin membrane is the outer-most layer of the heart. Myocardium: This thick layer is the muscle that contracts to pump and propel blood through the body’s tissues. Endocardium: The innermost layer is thin and smooth. The heart is divided into four chambers: two atria and two ventricles.
     www.healthline.com/human-body-maps/heart

     Heart Pictures, Diagram & Anatomy | Body Maps - Healthline

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3. www.kenhub.com › en › libraryHeart anatomy: Structure, valves, coronary vessels | Kenhub

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   Nov 3, 2023 · The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium.

4. www.imaios.com › en › e-anatomyHeart: illustrated anatomy | e-Anatomy - IMAIOS

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   Oct 2, 2024 · Interactive atlas of the anatomy of the heart: fully labeled illustrations, 3D model, and dissection photographs

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     Cardiovascular | Anatomy of the Heart | Heart Model

     Mar 12, 2017

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     Heart and Circulation Model Tour

     Mar 28, 2021

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     Anatomy of the Heart: Structures and Blood Flow [Cardiology Made Easy]

     Feb 21, 2021

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6. www.visiblebody.com › circulatory-the-heartThe Heart | Circulatory Anatomy - Visible Body

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   • The Heart Wall Is Composed of Three Layers. The muscular wall of the heart has three layers. The outermost layer is the epicardium (or visceral pericardium).
   • The Atria Are the Heart’s Entryways for Blood. The left atrium and right atrium are the two upper chambers of the heart. The left atrium receives oxygenated blood from the lungs.
   • Each Heart Beat Is a Squeeze of Two Chambers Called Ventricles. The ventricles are the two lower chambers of the heart. Blood empties into each ventricle from the atrium above, and then shoots out to where it needs to go.
   • The Valves Are Like Doors to the Chambers of the Heart. Four valves regulate and support the flow of blood through and out of the heart. The blood can only flow one way—like a car that must always be kept in drive.

7. www.innerbody.com › image › card01The Heart: Anatomy and 3D Illustrations - Innerbody

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   • Pericardium
   • Structure of The Heart Wall
   • Chambers of The Heart
   • Valves of The Heart
   • Conduction System of The Heart

   The heart sits within a fluid-filled cavity called the pericardial cavity. The walls and lining of the pericardial cavity are a special membrane known as the pericardium. Pericardium is a type of serous membrane that produces serous fluid to lubricate the heart and prevent friction between the ever beating heart and its surrounding organs. Besides ...

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   The heart wall is made of 3 layers: epicardium, myocardium and endocardium. 1. Epicardium. The epicardium is the outermost layer of the heart wall and is just another name for the visceral layer of the pericardium. Thus, the epicardium is a thin layer of serous membrane that helps to lubricate and protect the outside of the heart. Below the epicard...

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   The heart contains 4 chambers: the right atrium, left atrium, right ventricle, and left ventricle. The atria are smaller than the ventricles and have thinner, less muscular walls than the ventricles. The atria act as receiving chambers for blood, so they are connected to the veins that carry blood to the heart. The ventricles are the larger, strong...

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   The heart functions by pumping blood both to the lungs and to the systems of the body. To prevent blood from flowing backwards or "regurgitating" back into the heart, a system of one-way valves are present in the heart. The heart valves can be broken down into two types: atrioventricular and semilunar valves. 1. Atrioventricular valves. The atriove...

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   The heart is able to both set its own rhythm and to conduct the signals necessary to maintain and coordinate this rhythm throughout its structures. About 1% of the cardiac muscle cells in the heart are responsible for forming the conduction system that sets the pace for the rest of the cardiac muscle cells. The conduction system starts with the pac...

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8. www.britannica.com › science › heartHeart | Structure, Function, Diagram, Anatomy, & Facts ...

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   Oct 31, 2024 · In humans it is situated between the two lungs and slightly to the left of centre, behind the breastbone; it rests on the diaphragm, the muscular partition between the chest and the abdominal cavity. The heart consists of several layers of a tough muscular wall, the myocardium.

   • Author: The Editors of Encyclopaedia Britannica

   • In humans, the heart is situated between the two lungs and slightly to the left of center, behind the breastbone. It rests on the diaphragm, the mu...
   • The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and ano...
   • The pumping of the heart, or the heartbeat, is caused by alternating contractions and relaxations of the myocardium. These contractions are stimula...
   • The rhythmic noises accompanying the heartbeat are called heart sounds. The two distinct sounds are heard, a low, slightly prolonged “lub” (first s...

9. my.clevelandclinic.org › health › bodyHeart: Anatomy & Function - Cleveland Clinic

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   Jan 26, 2024 · What are the parts of the heart? The parts of your heart are like the parts of a building. Your heart anatomy includes: Walls. Chambers that are like rooms. Valves that open and close like doors to the rooms. Blood vessels like plumbing pipes that run through a building. An electrical conduction system like electrical power that runs through a ...

10. anatomytool.org › content › heart-collection-pageHeart - Collection Page - AnatomyTOOL

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    Drawings of the surface anatomy of the normal heart, anterior and posterior, with English labels. From the OpenStax Anatomy and Physiology book.