Cardiovascular system

The cardiovascular system’s primary duty is to transport blood throughout the body as efficiently as possible. This blood circulation helps to maintain your tissues, organs and muscles healthy and properly functioning to stay alive. 

What is the circulatory system function?

Blood vessels that comprise capillaries, arteries, and veins, are essential for the proper functioning of the circulatory system. Again, these blood veins function with the lungs and heart to ensure that circulatory blood is continually circulated throughout the body. The right ventricle pumps blood, which contains less oxygen to the lungs, where it is absorbed. The pulmonary trunk has been responsible for transporting blood. 

Inside the lungs, oxygen is taken in by blood cells. Pulmonary veins are vessels that deliver oxygen-rich blood inside the heart’s “left atrium” from the lungs. It has been used for transporting oxygenated blood inside the “left ventricle”. The veins return low responsible oxygenated blood as well as carbon dioxide towards the heart that in turn circulates the blood towards the lungs for oxygenation. During exhale, the CO2 is expelled from the body through the lungs.

What are the components of the circulatory system?

The heart can be considered a muscular organ, which helps to pump blood throughout various regions of our body.

Circulatory blood vessels that comprise the arteries, capillaries, and veins, can be considered as a kind of circulatory blood vessel.

Blood is made up of plasma, blood cells of red as well as white type, and platelets. 

What are the circuits of the circulatory system?

There have been mainly three circuits within the circulatory system. 

• The pulmonary circuit- transportation of oxygenated blood from lungs to heart and deoxygenated blood from the heart to lungs. 
• The systemic circuit- transportation of blood between the heart and the rest of the body. 
• The coronary circuit only provides blood to the heart that it needs for functioning. 

The pulmonary circuit is responsible for transporting blood that does not contain oxygen from the heart to the lungs and oxygen-rich blood from the lungs to the heart. The “pulmonary vein” is useful for bringing oxygen-rich blood from the lungs back towards the human heart. The “pulmonary artery” is responsible for taking the oxygen-poor blood from the heart to the lungs. 

Circulatory blood containing hormones, oxygen, and nutrients, is transported from the heart to the entire body through this concerned circuit, which is also known as the systemic circuit. As the body utilises hormones, oxygen, and nutrients, the circulatory blood takes up toxic items and transports them to the veins.

The coronary circuit refers to the arteries, which provide blood to the heart. With the help of this circuit, oxygen-rich blood is delivered to the heart muscle. Afterwards, it delivers low oxygen blood towards the atrium, from where it travels towards the lungs for oxygenation. 

In what ways do blood vessels differ from one another?

Each of the three major kinds of blood arteries is described below:

Arteries: They are thin, muscular tubules that transport oxygen-rich blood to various regions of the body. However, the pulmonary artery carries oxygen-poor blood from the heart to the lungs. Moreover, the “aorta” has been considered the biggest artery within the body of humans. This blood vessel begins from the heart and goes towards the chest before descending towards the stomach. In addition to branching off the aorta, the coronary arteries branch into arterioles when travelling far from the heart.

Veins: These circulating blood channels are responsible for returning exhausted oxygenated blood towards the heart. However, the pulmonary vein does the opposite as it brings oxygen-rich blood from the lungs to the heart. Again, veins are tiny and gradually attain bigger when reaching the heart. Blood is transported towards the heart by the two veins primary such as “The superior vena cava” as well as “the inferior vena cava”.

These blood passages, which link extremely tiny arteries (arterioles) and veins, are known as capillaries (venules). Despite having thin walls, capillaries are essential for the transport of O2, CO2, nutrients, and toxin materials in and out of the cells.

What are the circumstances that have an impact on the circulatory system?

Aneurysms: Aneurysms are caused by a weakening and enlargement of the arterial wall. The weak areas may rip, which results in a significant life-threatening rupture. Any artery may be affected by aneurysms, although the most frequent are brain aneurysms, aortic aneurysms, and abdominal aortic aneurysms, among others.

High blood pressure happens when the arteries have to do extra work for transporting blood throughout the body. When the pressure becomes excessive, you have hypertension which is high blood pressure. On another hand, if the arteries get less elastic or stretchy, low blood, as well as oxygen, can be transported to vital organs such as the heart. 

Plaque deposits may form as a result of high diabetes and cholesterol, which accumulate fat and various chemicals in the circulation. Plaques, which are deposits formed inside walls of arteries, are caused by these concerned chemicals. 

Conclusion 

We have come to the end of the article. The circulatory system aids in the elimination of toxic items from the body system. Various functions and components of the circulatory system have been acknowledged. Moreover, various circumstances that have an impact on the circulatory system are also discussed in brief.