Anatomy Of Heart Structure

The anatomy of the heart. Here we will review its essential components and how and why blood passes through them.

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Shape and size of the heart.

Anatomy of heart structure. It also has several margins. The heart has four chambers. This amazing muscle produces electrical impulses that cause the heart to contract.

The heart is a muscular organ about the size of a fist located just behind and slightly left of the breastbone. The hearts unique design allows it to accomplish the incredible task of circulating blood through the human body. Layers of the heart wall.

Right left superior and inferior. Conduction system of the heart. The right margin is the small section of the right atrium that extends between the superior and inferior vena cava.

Heart anatomy inner chambers. The chambers of the heart are shown including the right atrium left atrium right ventricle and left ventricle. The upper two chambers are called the atria.

The shape of the heart is similar to a pinecone rather broad at the superior surface and tapering to the apex. The heart has five surfaces. The right atrium receives blood from the veins and pumps it to the right ventricle.

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. Singly one is called an atrium from the latin word meaning entrance the lower chambers are called the ventricles from the latin word for belly the heart is also divided into two sidesleft and right. Chambers of the heart.

It is divided by a partition or septum into two halves and the halves are in turn divided into four chambers. A typical heart is approximately the size of your fist. The heart is situated within the chest cavity and surrounded by a fluid filled sac called the pericardium.

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. The heart has three layers of tissue each of which serve a slightly different purpose. This 3d medical animation depicts the anatomy of the heart.

The heart is a hollow organ with four flexible and resilient inner chambers. 12 cm 5 in in length 8 cm 35 in wide and 6 cm 25 in in thickness. Base posterior diaphragmatic inferior sternocostal anterior and left and right pulmonary surfaces.

The heart pumps blood through the network of arteries and veins called the cardiovascular system.

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