the heart
The heart is one of the muscular organs of the human body, and it is responsible for pumping blood and delivering it to the places it nourishes, hence it is a very important and effective part of the human circulatory system in addition to its importance to the human body as one unit. One minute, and this amount can be increased and doubled more than three times, especially when a person performs various sports exercises, as these activities make him need a very great effort.
The site of the myocardium
The heart is located approximately in the middle of the chest and may be closer to the left side of the body, but it is not located, as some think, in the left part of the human body, where the human heart is located in the upper part of the human being, and it is directly behind the rib cage, and in front of the spine at The human being, and the heart can be located in the upper part above the stomach, and there are some people whose heart is located in the same coordinates except that it is closer to the right side of the human body, and these are very few cases.
Heart function
The heart always performs a blood-pumping process, as it pumps the blood coming from the lungs, which is usually loaded with oxygen gas, which enters the human body through the process of breathing to all parts of the human body, and it pumps the blood loaded with carbon dioxide to the lungs of the human body until You expel these gases from the body. The heart not only carries oxygen through the blood, but it also carries all nutrients, and all the elements and materials that the body needs. The heart delivers all these materials to all different parts of the human body, specifically to every cell that needs these combined materials and elements in order to continue life and perform all the functions it needs to grow. The heart also works to deliver all waste products to the places where they are excreted from the body, such as transporting urine to the kidneys to be excreted through the bladder.
Heart size
The average heart mass in a person whose body mass reaches 70 kilograms is approximately 350 grams. Likewise, the heart does not function separately from the blood vessels, as it forms the circulatory system in the human body, and the blood vessels are the blood through which the blood passes. .
