Which components make up the cardiovascular system?
lungs, heart, and blood vessels
heart, blood vessels, and blood
heart, blood, and lungs
lungs, heart, and skin

The correct answer is option B

The cardiovascular system consists of a heart, blood and blood vessels. This system of the body functions by providing the blood to various parts of the body.

The heart pumps blood and the blood vessels transports oxygenated blood to the vital organs of the body.

These vessels also carry the deoxygenated blood from the organs back to the heart to replace it by oxygenated blood.

This is the main function of the cardiovascular system in the body.

The blood and the heart, together with blood vessels, comprise the cardiovascular system.

Further Explanation:

The cardiovascular system is also termed as a circulatory system that works to pump the oxygenated blood from the heart to other body parts and transport the blood poor in oxygen to the heart. With the flow of blood, substances like nutrients, carbon dioxide, hormones, and oxygen are also transported across the body.

In humans, the cardiovascular system is closed, which means the blood is passed on through veins, capillaries, arteries and the blood always remains within this network. The blood, blood vessels, and the heart are the essential parts of the cardiovascular system. The system includes systemic circulation, which comprises a loop to circulate the oxygen-containing blood to the entire body and pulmonary circulation, a loop connected to the lung to carry oxygenated blood.

The deoxygenated blood is brought into the heart through veins, while the arteries take away the oxygen-rich blood from the heart.

The arteries expand through the tissues and branch into several smaller vessels known as arterioles. The capillaries further branch out of the arterioles and deliver the nutrients and oxygen to different cells. In exchange for the released nutrients and oxygen, the capillaries take up waste and carbon dioxide, which then moves into the venules. The venules are broader and join together to form veins, which finally transfers back the oxygen-lacking blood to the heart.

The three major roles of the circulatory system are:

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Answer Details:

Grade: High School

Chapter: Cardiovascular system

Subject: Biology

Keywords:

Cardiovascular system, circulatory system, blood, heart, blood vessels. Veins, arteries, capillaries, arterioles, venules, lungs, pulmonary circulation, systemic circulation, antibodies, white blood cells, oxygen, carbon dioxide, nutrients.

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