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  1. Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica

    Dec 6, 2025 · The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and another layer, the endocardium, …

  2. Anatomy of the human heart - Wikipedia

    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.

  3. Heart: Anatomy & Function - Cleveland Clinic

    Jan 26, 2024 · Your heart contains four muscular sections (chambers) that briefly hold blood before moving it. Electrical impulses make your heart beat, moving blood through these …

  4. How the Heart Works - What the Heart Looks Like | NHLBI, NIH

    Mar 24, 2022 · Blood flows from the body and lungs to the atria and from the atria to the ventricles. The ventricles pump blood out of the heart to the lungs and other parts of the body. …

  5. The Heart: Anatomy and 3D Illustrations - Innerbody

    Dec 31, 2025 · Explore the anatomy and core functions of the heart with Innerbody's interactive 3D model.

  6. Parts of the Heart - Human Heart Anatomy and Worksheets

    Apr 15, 2025 · Learn about the parts of the heart. Get facts about human heart anatomy and function and free PDF worksheets for studying.

  7. Heart anatomy: Structure, valves, coronary vessels | Kenhub

    Nov 3, 2023 · This page discusses the heart anatomy. Click here to learn everything about the anatomy of the heart, heart valves and vessels at Kenhub!

  8. The Heart | Circulatory Anatomy - Visible Body

    The heart is a hollow, muscular organ that pumps oxygenated blood throughout the body and deoxygenated blood to the lungs. This key circulatory system structure is comprised of four …

  9. Heart: illustrated anatomy | e-Anatomy - IMAIOS

    Nov 12, 2025 · Figure 1 - Anatomy of the heart: anatomical illustrations and structures, 3D model and photographs of dissection. Some illustrations have been drawn and coloured with Adobe …

  10. Heart Anatomy: Labeled Diagram and Quick Reference

    Sep 3, 2025 · It consists of four main chambers: two atria and two ventricles. 1 Understanding its basic anatomy is crucial to understanding how it functions. This article provides a …