How the heart works

The heart is one of the most important organs of the human being, the heart is made up of several parts. Where the characteristic properties and reacts as if it were a single fiber. A property of the heart is its automatism, that is, the possibility of contracting itself at a given rate, without the need for external stimuli. The size of the heart is equivalent to the first of a person and weighs, on average, about 330 grams in the adult. Below we explain how the heart works, how it works and the mechanism of this very important organ, the heart.

Steps to follow:

1. Inside the right atrium there is a group of cells or sinus nodule, made up of a special muscle tissue that, like nervous tissue, has automaticity, that is, it is capable of generating the heartbeat and setting its rhythm.

2. The circulation of blood is possible due to the contraction movements of the heart, which drive the blood towards the lungs to purify it, through its right atrium and ventricle (it is what is called small circulation), and the whole organism through its left atrium and ventricle (great circulation).

3. Like the great circulation, it has an extensive route, it requires greater effort from this organ, this left part is thicker and more muscular than the right.

4. To propel blood into the body, the heart simply acts as a propellant pump, pushing the fluid into the vessels. In this case, the heart contracts: it is what is called systole; by relaxing, at rest, it allows the blood to fill it: this is called diastole.

5. The work of the heart, that is, the alternating and uninterrupted succession of systoles and diastoles, can be appreciated by taking the pulse, or by pressing a peripheral artery (for example, in the wrist) with two fingers. The heart pumps between 7000 and 8000 liters daily.

6. In a day the heart beats about 120,000 times: each cardiac cycle lasts 0.8 seconds: 0.3 seconds corresponds to systoles and 0.5 to diastole. This is why the heart works for about 10 hours and rests for 14 hours.

Recent Articles

How to gain muscle without weights

We don't always have the time or money to go to a gym to train. And for that reason, we should not neglect our body. If...

How to make flowers out of toilet paper tubes

Disposable materials like toilet paper rolls offer endless possibilities when it comes to crafting. Working with recyclable items is a good way to conserve the environment and can be used to...

How to make a cucumber Christmas tree

When Christmas comes, we want our entire home to be well decorated and, to achieve this, we must take into account all the details. The event is...

How to Make Muscle Pain Ointment?

Muscle aches, depending on the area and intensity, can range from a simple annoyance to a limitation to perform our daily activities. That is why...

How to plant and grow melons

The melon plant, or Cucumis melo, is a creeping herbaceous species with sweet and delicious fruit, which is composed of up to 90% water and...

Related Stories

Ge the daily HOWWS in your inbox