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  2. Anatomy of the human heart - Wikipedia

    en.wikipedia.org/wiki/Anatomy_of_the_human_heart

    The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...

  3. Cardiac muscle - Wikipedia

    en.wikipedia.org/wiki/Cardiac_muscle

    Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissues, the others being skeletal muscle and smooth muscle. It is an involuntary, striated muscle that constitutes the main tissue of the wall of the heart .

  4. Trabeculae carneae - Wikipedia

    en.wikipedia.org/wiki/Trabeculae_carneae

    The trabeculae carneae (columnae carneae or meaty ridges) are rounded or irregular muscular columns which project from the inner surface of the right and left ventricle of the heart. [1] These are different from the pectinate muscles, which are present in the atria of the heart. In development, trabeculae carneae are among the first of the ...

  5. Heart - Wikipedia

    en.wikipedia.org/wiki/Heart

    The back surface of the heart lies near the vertebral column, and the front surface known as the sternocostal surface sits behind the sternum and rib cartilages. [8] The upper part of the heart is the attachment point for several large blood vessels—the venae cavae , aorta and pulmonary trunk .

  6. Pectinate muscles - Wikipedia

    en.wikipedia.org/wiki/Pectinate_muscles

    Behind the crest (crista terminalis) of the right atrium the internal surface is smooth. [1] Pectinate muscles make up the part of the wall in front of this, the right atrial appendage. [citation needed] In the left atrium, the pectinate muscles are confined to the inner surface of its atrial appendage. [1]

  7. Intercalated disc - Wikipedia

    en.wikipedia.org/wiki/Intercalated_disc

    Intercalated discs or lines of Eberth are microscopic identifying features of cardiac muscle. Cardiac muscle consists of individual heart muscle cells (cardiomyocytes) connected by intercalated discs to work as a single functional syncytium. By contrast, skeletal muscle consists of multinucleated muscle

  8. File:Heart diagram-en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Heart_diagram-en.svg

    This is a featured picture, which means that members of the community have identified it as one of the finest images on the English Wikipedia, adding significantly to its accompanying article. If you have a different image of similar quality, be sure to upload it using the proper free license tag , add it to a relevant article, and nominate it .

  9. File:Diagram of the human heart (cropped).svg - Wikipedia

    en.wikipedia.org/wiki/File:Diagram_of_the_human...

    Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

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