The circulatory system essay

Each of us is qualified to a high level in our area of expertise, and we can write you a fully researched, fully referenced complete original answer to your essay question. Diastole, when the heart is at rest, and systole, when the heart contracts to pump deoxygenated blood toward the lungs and oxygenated blood to the body.

Circulatory system

The blood circulatory system in human beings is an example of double circulation. Vasodilation is the expansion of an artery as the smooth muscle in the arterial wall relaxes after the fight-or-flight response wears off or under the effect of certain hormones or chemicals in the blood.

The job of heart is to pump blood around our body. There are typically about 60 to 90 beats per minute. This condition can develop from a diet high in salt, smoking, kidney disease, or some other underlying medical condition.

Thus, there are three types of blood vessels in the human body: The lymphatic system produces and transports additional immune cells. This main artery then branches into smaller arteries which go into different body organs except the lungs. We get oxygenated blood in the lungs where the fresh oxygen of air passes into the blood.

In the circulatory system, the heart acts as a pump to push out blood. The various dissolved substances like oxygen, food, etc. The valves prevent the backflow of blood in veins. When the muscles of all the four chambers of the heart are relaxed, the pulmonary vein brings the oxygenated blood oxygen-carrying blood from the lungs into the left atrium of the heart.

As arteries get farther from the heart, they begin to branch out into arterioles, which are smaller and less elastic than where they originate.

Short essay on Human Circulatory System

We will now describe all the parts of the circulatory system in detail. The heart, blood, and blood vessels are the three main elements that make up the circulatory system. Similarly, the right atrium is connected to the right ventricle through another valve V2.

This energy is useful in warm-blooded animals like mammals and birds which have high energy needs because they constantly require energy to maintain their body temperature.

The heart beats non-stop all the time. Bleeding from an aortic aneurysm is a medical emergency that can be caused by high blood pressure, smoking, aging, high cholesterol, and a positive family history. The platelet plug will serve as a temporary seal to keep blood in the vessel and keep foreign material out of the vessel until the cells of the blood vessel can repair the damage to the vessel wall.

When the left ventricle contracts, the oxygenated blood is forced into the main artery called 'aorta'. Circulatory System is the combined function of the heart, blood, and blood vessels to transport oxygen and nutrients to organs and tissues throughout the body and carry away waste products.

The circulatory system increases the flow of blood to meet increased energy demands during exercise and regulates body temperature. The Cardiovascular System Essay Words | 4 Pages. One of the most important systems in the body, keeping it alive, is the cardiovascular system.

As a part of the circulatory system, the cardiovascular system pumps blood throughout the body through a network of many arteries and veins, providing it with nutrients and oxygen.

Circulatory system

. The circulatory system works carefully with other systems in animal organisms. It delivers oxygen and nutrients to organisms by working with the respiratory system.

The circulatory system assists carrying waste and carbon dioxide out of the organism. The human circulatory is one of, if not the, most important systems in the body. It consist of such organs as the heart and lungs. However every organ and organ system in the body is nourished and kept alive through the use of the circulatory system.

The main organ in the circulatory system is the /5(2). Circulatory System - Circulatory System The Circulatory System is a transportation and cooling system for the body.

The Red Blood Cells act like billions of little mail men carrying all kinds of things that are needed by the cells, also RBC's carry oxygen and nutrients to the cells. The blood circulatory system in human beings is an example of double circulation. This can be explained as follows: A circulatory system in which the blood travels twice through the heart in one complete cycle of the body is called double circulation.

The circulatory system essay
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Circulatory system - Sample Essays