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The heart is the central organ of the circulatory system, and pumps blood into the blood vessels which carry it to all the body parts. All these events occur with each heartbeat. The average heart rate in a normal person is 72 beats per minute, so one can imagine the speed at which blood flows through the body.
Organs. The chest is the area of origin for many of the bodyâs systems as it houses organs such as the heart, esophagus, trachea, lungs, and thoracic diaphragm.The circulatory system does most of its work inside the chest.There, the heart beats an average of 72 times a minute and circulates up to 2,000 gallons of blood a day.he chest is the area of origin for many of the bodyâs systems as it houses organs such as the heart, esophagus, trachea, lungs, and thoracic diaphragm. The circulatory system does most of its work inside the chest. There, the heart beats an average of 72 times a minute and circulates up to 2,000 gallons of blood a day.