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  1. www.thoughtco.com › the-heart-wall-4022792The 3 Layers of the Heart Wall - ThoughtCo

    Jul 26, 2024 · The three heart wall is divided into three layers: epicardium, myocardium, and endocardium. Epicardium: the outer protective layer of the heart. Myocardium: muscular middle layer wall of the heart. Endocardium: the inner layer of the heart.

    • Myocardium

      Falty14 /Wikimedia Commons/CC by SA 4.0. Myocardium is the...

    • EPI

      Examples . Epiblast (epi-blast): the outermost layer of an...

    • Coronary Blood Vessels

      Arteries are vessels that carry blood away from the...

    • Pericardium

      The pericardium is divided into three membrane layers:...

  2. openstax.org › pages › 19-1-heart-anatomy19.1 Heart Anatomy - Anatomy and Physiology 2e | OpenStax

    • Location of the Heart. The human heart is located within the thoracic cavity, medially between the lungs in the space known as the mediastinum. Figure 19.2 shows the position of the heart within the thoracic cavity.
    • Shape and Size of the Heart. The shape of the heart is similar to a pinecone, rather broad at the superior surface and tapering to the apex (see Figure 19.2).
    • Chambers and Circulation through the Heart. The human heart consists of four chambers: The left side and the right side each have one atrium and one ventricle.
    • Membranes, Surface Features, and Layers. Our exploration of more in-depth heart structures begins by examining the membrane that surrounds the heart, the prominent surface features of the heart, and the layers that form the wall of the heart.

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  4. med.libretexts.org › Bookshelves › Anatomy_and17.1C: Layers of the Heart Walls - Medicine LibreTexts

    The Heart Wall: The wall of the heart is composed of three layers, the thin outer epicardium, the thick middle myocardium, and the very thin inner endocardium. The dark area on the heart wall is scarring from a previous myocardial infarction (heart attack).

  5. pressbooks-dev.oer.hawaii.edu › 19-the-heartThe Heart – Anatomy and Physiology - UH Pressbooks

    Layers of the Heart Wall. The wall of the heart is composed of three layers of unequal thickness. From the outermost to the innermost, these layers are: The epicardium or visceral layer of the serous pericardium is composed of simple squamous epithelium and areolar connective tissue. The myocardium is the middle layer of the wall of the heart ...

  6. teachmeanatomy.info › thorax › organsThe Heart Wall - TeachMeAnatomy

    Jan 4, 2024 · The heart wall itself can be divided into three distinct layers: the endocardium, myocardium, and epicardium. In this article, we shall look at the anatomy and clinical relevance of these layers.

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  7. usq.pressbooks.pub › anatomy › chapter6.1 Heart Anatomy – Fundamentals of Anatomy and Physiology

    The wall of the heart is composed of three layers of unequal thickness. From superficial to deep, these are the epicardium, the myocardium and the endocardium (see Figure 6.1.4). The outermost layer of the wall of the heart is also the innermost layer of the pericardium, the epicardium, or the visceral pericardium discussed earlier.

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  9. www.kenhub.com › anatomy › layers-of-the-heartLayers of the heart: Epicardium, myocardium, endocardium - Kenhub

    Nov 3, 2023 · The myocardium is functionally the main constituent of the heart and the thickest layer of all three heart layers. It is a muscle layer that enables heart contractions. Histologically, the myocardium is comprised of cardiomyocytes .