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Cardiovascular system: want to learn more about it?

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Cardiovascular system

Learning objectives

This study unit will help you to:

  1. Identify the main subdivisions of the cardiovascular system.
  2. Understand the anatomical difference between arteries and veins.
  3. Learn the main functions of the parts of the cardiovascular system.

Watch videos

The cardiovascular system is composed of the heart, blood vessels, and blood that runs through them. The principal function of the heart is to pump the blood through the system of blood vessels (vascular system). The vascular system is divided into veins and arteries, with the former carrying the blood towards the heart and the latter carrying the blood from the heart to the tissues. The blood transports gases, nutrients, electrolytes, wastes, and hormones maintaining homeostasis in the body. The vascular system is also divided into circuits:

  • The pulmonary circuit: Carries the blood between the heart and lung
  • The systemic circuit: Carries the blood between the heart and the periphery

This video tutorial will provide you with an overview of the anatomy and function of the cardiovascular system.

The arteries carry blood from the heart to the different body parts. This video will help you learn the main arteries of the human body:

And the following video will introduce you to the veins of the human body:

Take a quiz

Now that you have watched the videos about the cardiovascular system, solidify your knowledge by taking our quiz.

To adjust your focus and choose the topics you’ll get quizzed on, try out our customizable quiz:

Browse atlas

Revise everything that you have learned by analyzing each structure of the cardiovascular system through our atlas gallery:

Summary

Key points about cardiovascular system
Vascular system
Artery: A vessel that carries blood away from the heart to the capillary beds of organs and tissues.
Vein: A vessel that carries blood from the capillaries towards the heart.
Pulmonary circulation
A system of arteries and veins that carries deoxygenated blood from the heart to the lungs and vice versa; the flow of oxygenated blood from the lungs to the heart.
Systemic circulation
A system of arteries and veins that conveys oxygenated blood from the heart to peripheral tissues, and vice versa; deoxygenated blood from the periphery to the heart.
Coronary circulation A system of arteries and veins that provide the arterial supply and venous drainage of the heart

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Now that you're familiar with the general organization and function of the cardiovascular system, you can continue learning with the following study units:

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