The human cardiovascular system is considered closed because <u>blood is continuously circulated in the body.
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Further Explanation:
Blood circulates throughout the body when the heart relaxes in middle of the two heart beat. It helps in <u>circulating the nutrients and oxygen</u> to all the part of the body. It is composed of heart and blood vessels which are flowing through the whole body. There are two main vessels which helps in circulation are, <u>arteries that helps in carrying blood</u> from the heart whereas <u>vein function is to carry deoxygenated blood</u> to the heart.
The circulatory system is categorized into two circulations according to the blood they carry in the human body which are;
1. Systemic circulation: It provides blood to cells, tissue and organs.
2. Pulmonary circulation: In this circulation fresh oxygen is mixed with blood as well as carbon dioxide is breathing out.
Blood is carried out from heart and circulated to other part of the body through a very complex blood vessels network of arteries, arterioles and capillaries whereas the deoxygenated blood will travel to the heart from venules and veins in a closed circulation
Learn More:
1. Learn more about the fibrous skeleton of the heart <u>brainly.com/question/7301375</u>
2. Learn more about blood cells bring oxygen and take carbon dioxide away <u>brainly.com/question/1213217</u>
3. Learn more about the system prepares food for absorption into the bloodstream <u>brainly.com/question/310282
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Answer Details:
Grade: High school
Subject: Health
Chapter: Circulatory System
Keywords:
Circulatory system, heart, blood vessel, arteries, veins, systemic, pulmonary, arterioles, capillaries, venules, heartbeat, closed, tissue, cell, organ.
