50 Facts About The Cardiovascular System Every Kid Should Know | Kidadl


50 Facts About The Cardiovascular System Every Kid Should Know

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The cardiovascular system is an important constituent of our body.

The system is comprised of the heart and other vital organs, apart from the brain. These vital organs play an important role in keeping the body alive.

But why is this system so important? What are the significant organs that make up this system? Keep reading to find out the answers to these questions, and to get to know all about the cardiovascular system.

Facts About The Cardiovascular System

In this section, we will discover some amazing facts about the circulatory system and answer some questions, such as 'What are the organs that make up the circulatory system and their importance?'

The circulatory system is also called the blood-vascular system.

The circulatory system is made up of the heart as well as intricate, difficult, and closed connections of various nerves of our body including, veins, arteries, and capillaries.

The circulatory system helps in carrying out one of the most important tasks in the body, which is to circulate the blood pumped by the heart to the different body parts.

Veins, arteries, and capillaries make up the blood vessels.

Veins are responsible for carrying the deoxygenated (devoid of oxygen) blood from different body parts back to the heart.

Veins are actually not blue in color but appear to be so because of carrying deoxygenated blood cells back to the heart.

Whereas arteries are responsible for carrying the oxygen-rich blood from the heart through the blood vessels to the other body parts.

Blood that the heart pumps is taken through the pulmonary loop by the arteries first, before taking it to other body parts.

The pulmonary loop helps the blood take up oxygen from the lungs with the help of capillaries.

The blood contains red blood cells, white blood cells, platelets, and plasma.

Red blood cells are responsible for carrying oxygen to the body parts and removing carbon dioxide.

Bone marrow is responsible for the creation of red blood cells in our body.

Hemoglobin is the pigment present in red blood cells, which makes the human blood seem red.

Around 270,000,000 hemoglobin cells are present in one single red blood cell.

An average heart is the size of a human fist. A healthy heart will beat almost 115,000 times a day.

The brain also receives blood through two arteries, which are posterior and anterior arteries.

Functions Of The Cardiovascular System

What purpose does the circulatory system serve? What are its main functions? Let us find the answers to these questions.

The lymphatic system works complementary to the circulatory system and carries fluid back to the blood circulation as a lymph.

The circulatory system present in humans or mammals is of the closed type, which means blood is not leaving the blood vessels.

It works along with the immune system in our body.

The vascular system has two divisions, namely the systemic circuit and the pulmonary circuit.

The main function of the vascular system is to carry and deliver oxygen and nutrients to the body parts, and help carry the carbon dioxide-rich blood back to the heart.

A healthy human heart pumps almost 2,000 gallons (3.7 l) of blood every day.

A healthy human heart will beat 70-80 times a minute.

The nutrients carried along are delivered to different cells in the body for their nourishment.

Oxygen is provided to all the cells, and is vitalized by all the cells, while helping to keep it working. Moreover, waste is carried out of the body by blood vessels.

Organs In The Cardiovascular System

Cardiologist using a stethoscope on heart

A variety of organs work together simultaneously to keep the circulatory system in shape. The heart functions at the center of the circulatory system.

The heart is the organ responsible for the pumping of blood, and a network of high numbers of blood vessels are attached to the heart, which helps it deliver blood from the heart to the other body parts and vice-versa.

The left part of the heart is responsible for pumping the oxygenated blood, whereas the right part of the heart pumps the deoxygenated blood.

The human heart consists of four chambers, the left atrium, the right atrium, and the left and right ventricles.

The blood pumped by the right part of the heart is taken to the lungs to enrich them with oxygen.

The deoxygenated blood is taken to the left part of the heart where it is pumped.

The arteries get narrower with the increasing distance from the heart.

The lungs are connected to the blood vessels through capillaries that help in the diffusion of oxygen in the blood.

The blood vessels are also connected to the kidneys, which help them in getting rid of the waste.

The blood circulates through the heart with the help of valves.

Blood pressure is maintained to keep the blood flowing.

The Importance Of The Cardiovascular System

The vascular system is an essential part of our physique and serves the human framework continuously without a break. The blood-vascular system helps us keep our health in check, which is why it holds much significance.

It is the primary system of fluid and gaseous exchange between organs.

Food, when broken down into nutrients, is supplied to the target section with this system.

The heart is important in order to keep the flow of the blood uniform and uninterrupted.

The pumping action of the heart happens in two cycles: systole and diastole.

Systole is when the heart contracts, which instigates the movement of blood out of the chamber.

Diastole is the interval between the contractions, which is basically the time when the heart muscle relaxes to fill the chambers with blood.

One great significance of the vascular system is that it helps us to maintain homeostasis (stability), by the continuous flow of blood through every organ and tissue.

There are multiple diseases that are related to the vascular system, a heart attack being the most common one.

A heart attack occurs when the blood flow in a blood vessel is not uniform, and thus makes it difficult for the heart to pump blood.

A heart attack is responsible for multiple deaths every minute throughout the world.

Heart disease is also known to cause severe damage to the system.

Heart disease is when blood reaching the heart is not sufficient because of the narrowing of arteries.

Other diseases that are well known to hamper the health of the blood-vascular systems include: an aneurysm (weak spot in the artery wall), atherosclerosis (plaque deposits that make the arteries narrow), and high blood pressure.

A broken heart is actually a phenomenon that happens in real.

Stress cardiomyopathy is also known as broken heart syndrome, which is the weakening of the heart muscle.

Laughing is actually helpful as a way to remove stress and keep our hearts in good health. Also, getting an adequate amount of rest after physical activity is always advised.

Treatment of heart diseases is quite expensive and requires a lot of patience.

Treatment of patients that have heart failure is done by temporarily placing an artificial heart until a donor's heart is provided for heart transplant surgery.

Written By
Debarthy Dutta

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