The Functions And Workings Of The Human Heart

In general the function of the heart is pumping blood throughout the body and return them after lung organs cleaned. This means that the function of the human heart is as blood-pumping organs or tool in humans. At that time the heart provides blood and oxygen flowed throughout the body, as well as rid the body of metabolic results darih (carbon dioxide). So to carry out these functions the heart of collecting blood from a lack of oxygen throughout the body and then memompanya to the lung, by way of the blood in the heart taking oxygen and expel carbon dioxide. At the heart of a rich blood will the oxygen comes from the lungs is pumped into the network of the entire human body.
Increasing age of a person, will greatly affect the functionality of the heart itself. This means because the heart works continuously for human life, will have an effect on the ability of the function of the heart will gradually decline. And this will be increasingly drastic decline in heart function when there are other circumstances that affect the function of the heart itself. For example happened infection the heart muscle or the muscle membrane miokarditis or perikarditis, depletion of oxygen due to narrowing of the arteries that menyuplainya often referred to as coronary heart disease, increasing muscle mass because increasing the pressure, and so on.

The Workings Of The Heart



The heart of the work through the mechanism of repeated and continuous progress which is also referred to as a cardiac cycle is so visually noticeable or known as heart rate. Through the mechanism of alternating, heart berkonstraksi to empty the contents of the heart and doing relaxation to replenishing the blood. In the cycle, the heart do a period i.e. the period when sistol contracting and empty the contents (blood), and the diastol period i.e. the period doing relaxation and filling of blood in the heart. Second porch SAGs and contracting simultaneously, and both Chambers also loosens and Contracting simultaneously anyway to do such mechanisms.
Heart muscle cells do contractions with the aim to pump the blood that was conceived by a potential action and spread through the membrane muscle cells. When do contractions, the heart becomes a pulsating in "rhythmic", this is a result of the presence of ptensi action posed by self-activity of the heart itself. The incident caused because the heart has a mechanism to drain the electricity caused itself to do contraction or relaxation and do the pumping. The electric flow mechanism that gives rise to the action is affected by some type of electrolyte such as K +, Na +, and Ca ++. So if the body in the event of a failure at the level of the electrolyte will cause interference on the mechanism of flow of electricity on the human heart.

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Ditulis oleh SF BLOG pada tanggal Jumat, 07 Agustus 2015