human heart

- is an amazing organ that Mother Nature bestowed immense hard work and boundless stamina.Heartbeat accompanies a person throughout his life.The heartbeat quickens when dealing with a loved one or a joyful event.And with grief hurts our hearts along with our soul.

When the heart is resting



Many used to think that our heart is working tirelessly throughout our lives.However, it is not so.If you compare the amount of time required for a heartbeat with an interval of time between beats, it turns out the first interesting fact.The fact that, in order to push one portion of the blood in the blood vessels of the body's heart need about 0.43 seconds.This time consists of the time of the blood flow inside the body (0.1 seconds) and the expulsion of blood into the aorta (0.33 seconds).In this short period of time the heart is in a state of tension, it is working.After one cuts a period of rest, which takes approximately 0.57 seconds.At this time, the heart muscle is completely relaxed.

heart healthy person decreases with frequency of about 70-75 beats per minute, or 100 000 times per day.If you add up all the intervals for one minute when the heart is in a state of contraction, we obtain 25.8 seconds.In a relaxed state of the heart muscle is 34.2 seconds.When adding the time of work and rest of the heart during the day, it turns out that it works only 10 hours 19 minutes and 12 seconds, the rest of the time (13 hours 40 minutes and 48 seconds), it rests.

These simple calculations reveal the mystery of the unique efficiency of the human engine of the living: nature has allowed the heart to rest before they get tired.Otherwise simply can not be.After a long rest of the heart needed to stave off fatigue and killed a man.

What volume of blood the heart pumps the human



What volume of blood pumping our heart

When a reduction of his heart into the aorta throws 60-70 milliliters of blood.Thus, for 1 minute heart pumps about 5 liters of blood for 1 hour - about 300 liters per day more than 7000 liters.For 70 years, the heart of human life will pump more than 175 million liters of blood.This volume is enough to fill more than 4 thousand railway tanks.Kitchen faucet out to release the same amount of water, you need to be enabled to total head of 45 years.

This volume of blood pumped by the heart when calm.When you load minute volume of blood can be increased up to 30 liters, but to work long at this pace, our heart can not.

Speed ​​ejected heart blood is 1.6 km / h and the distance through which the heart is forcing blood per day, 90 thousand kilometers.To imagine such a distance, you can compare it to the length of the equator of the Earth, which is about 40 thousand kilometers.

In one heartbeat, work is done by doing that can lift an object weighing 200 g to a height of 1 meter.Over 1 month the heart of do the work, which can be used to lift a person with an average weight of Mount Chomolungma.And this is the highest point of our planet.

How heart consumes energy and oxygen



energy that consumes our live motor during the day will be enough to drive a car 32 kilometers.If it were possible to collect the energy of my heart for all human life, then this car could reach the moon and back.

To make these "feats of labor" to our heart must be 90 milliliters of pure oxygen per minute (despite the fact that the needs of the entire body requires about 2.5 liters of oxygen per minute).At the heart of daily consumes about 130 liters of oxygen, and for the year - 47 thousand liters.

All these facts prove conclusively that our amazing live engine that weighs only 300 grams, performing backbreaking work for human hands.
Author: Editorial TutKnow.ru | Photo: © Viaframe / Corbis