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Definition, function and anatomy of the myocardium.

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Hey, everyone! This is Matt from Kenhub, and in this tutorial, we will discuss the definition, function, and anatomy of the myocardium.

The heart is a large muscular organ that is comprised of four different layers. From the outside to the inside, they are called the pericardium, the epicardium, the myocardium, and the endocardium. Each layer has a different function that primarily aids the pumping action of the heart, which allows the blood to flow around the body. The aim of this tutorial is to highlight the myocardium.

The myocardium is the middle muscular layer of the heart’s walls. It lies between the endocardium and the outer epicardium.

The myocardium has three functions: providing a scaffolding for the heart chambers, assisting in contraction and relaxation of the cardiac walls so that blood can pass between the chambers, and conducting electrostimulation through its own tissues and into the epicardium.

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