Explain the components of human circulatory system

Explain the components of human circulatory system.

The Circulatory System
The heart, blood and the blood vessel make up the circulatory system

a) The Heart
This is the organ that pumps blood through out the body. It is muscular and placed between the lungs somewhere slightly to the left side of the body. The strong muscles of the heart can relax or contract when contracting the heart pumps blood with force. When the heart relaxes, the blood flows into chambers of the heart.
The contracting and relaxing of the heart is what is known as the heart beat.

b) Blood When we are cut or injured there is a liquid which is red that flows out of the cut or injured part of the body. This is blood which contains water, blood cells, digested food, waste products and hormones which control growth and the other body activities

c) Blood Tissues The tubes that contain the blood are called blood vessels. They carry blood to all parts of the body.

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Mutiso answered the question on October 6, 2018 at 18:00

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