How the heart works essay

The atria and ventricles work together, alternately contracting and relaxing to pump blood through your heart.

How the Heart Works Essay

This can be explained as follows: In this article, we will look at this important organ so that you can understand exactly what makes your How the heart works essay tick.

In this cycle the whole heart essentially rests for about four-tenths of a second. The blood circulation also keeps on removing waste products formed in the cells of the body.

We cannot live without our heart. Unfortunately, heart disease still causes sudden death and many people die before even reaching the hospital. Zoll an American developed a technique for pacing the heart through the pace-maker, intact into the chest. Looking at the outside of the heart, you can see that the heart is made of muscle.

When was the last time you had a heavy pancreas? This fist-sized powerhouse beats expands and contractstimes per day, pumping five or six quarts of blood each minute, or about 2, gallons per day.

At the same time, the waste substances like carbon dioxide formed in the cells enter into capillaries. The blood carrying oxygen in it is called oxygenated blood.

How the Heart Works Essay Sample

According to research women are becoming the greater half of the population to have heart disease, which might imply that they are more easily struck by it than men are. Carbon dioxide leaves the body when you exhale. Structural disorders are usually with surgical techniques, for example diseased valves can be surgically widened or replaced.

In a four-chambered heart, the left side and right side of the heart are completely separated to prevent the oxygenated blood from mixing with deoxygenated blood Such a separation allows a highly efficient supply of oxygen to the body cells which is necessary for producing a lot of energy.

Every living cell of our body is close to a capillary. The human heart is divided into four chambers, the left and right atrium the superior atria and the left and right ventricles the inferior ventricles. When the ventricle is full, the tricuspid valve shuts.

A result of this could be a form of coronary heart disease CHD. This is because when the ventricles contract, the valves V1 and V2 close automatically so that the blood may not go back into atria. Thus, there are three types of blood vessels in the human body: The center is fundamentally a muscle somewhat larger than the fist.

From left auricle oxygenated blood passes into left ventricle through left auri-ventricular valve. Similarly, the two ventricles left ventricle and right ventricle contract together and relax together. From the atrioventricular node the impulse travels to the bundle of his, and eventually divides into the right and left bundle branches.

Right and left ventricles are separated by an inter-ventricular septum. Heart, Arteries, Veins and Capillaries. This process of blood flow is repeated countless times and does not stop till you die. The job of heart is to pump blood around our body. Arteries, veins and capillaries are called blood vessels.

How Your Heart Works

Unlike lean muscles, however, the heart works on the "All -or- Nothing Law". Heart disease is the leading cause of death in the United States. The strong muscular walls contract squeezepumping blood to the rest of the body. The arteries, veins and capillaries act as pipes or tubes through which the blood flows.

Endocardium is also present in the soft inner lining of blood vessels. It has many other associations, too. The heart beats non-stop all the time. The electrical system of the heart is the power source that makes this possible. Arteries are found in the whole of our body. The South African Surgeon Dr.

Blood Vessels Entering and Leaving the Heart: From your pulmonic valve, blood travels to the pulmonary artery to tiny capillary vessels in the lungs.

How the Heart Works

As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.ADVERTISEMENTS: The human heart is pinkish about the size of a fist and weighs approx. gms, the weight in females being about 25% lesser than the males.

Essay on Human Heart: Location, Structure and Other Details (with diagram) Article Shared by. Here's how it works: Anybody can ask a question. In the event the heart stops to pump blood that the body begins to shut down and after a very short period of time will perish.

The center is fundamentally a muscle (somewhat larger than the fist). As with any other muscle in the human body, it.

How the Heart Works Essay Sample.

Short essay on Human Circulatory System

Although the heart is often referred to as a symbol of courage and love, it is no more than a muscular pump. From the moment it begins beating to the moment we die the heart works non-stop beating an average of 72 beats per minute, 37, beats per year and 2,, beats per average lifetime1.

Essay about How the Heart Works - How the Heart Works The cardiac electrical system The heart generates its own electrical signal, or impulse. This electrical impulse can be recorded by placing electrodes on the skin of the chest, thus producing the electrocardiogram (ECG, or EKG).

The human heart is an amazing organ. Learn how it works to pump blood throughout the human body using electrical signals from the brain from the experts at WebMD.

Heart pumps the oxygenated blood to the body and provides the blood pressure that sends blood out to all parts of the body. Arteries deliver the blood to cells throughout the body. Veins return blood to the lungs (by way of the heart) where carbon dioxide (CO2) is removed and exhaled out into the air.

How the heart works essay
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