Why is the heart so important to the body?

Answer 1

Because it pumps the blood.
Blood brings oxygens and nutrients to the cell, and leaves with carbon dioxyde and other trash stuff.
The heart is the force that makes the blood move. Without the heart, the cells couldn't have the oxygen.

Answer 2

Importance Of The Heart

Answer 3

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Answer 4

In the human body, the heart is normally situated slightly to the left of the middle of the thorax, underneath the breastbone (see diagrams). The heart is usually felt to be on the left side because the left heart (left ventricle) is stronger (it pumps to all body parts). The left lung is smaller than the right lung because the heart occupies more of the left hemithorax. The heart is enclosed by a sac known as the pericardium and is surrounded by the lungs. The pericardium is a double membrane structure containing a serous fluid to reduce friction during heart contractions. The mediastinum, a subdivision of the thoracic cavity, is the name of the heart cavity.

The apex is the blunt point situated in an inferior (pointing down and left) direction. A stethoscope can be placed directly over the apex so that the beats can be counted. This physical location is between the sixth and seventh rib, just to the left of the sternum [2]. In normal adults, the mass of the heart is 250-350 g (9-16 oz), but extremely diseased hearts can be up to 1000 g (2 lb) in mass due to hypertrophy. It consists of four chambers, the two upper atria (singular: atrium ) and the two lower ventricles. On the left is a picture of a fresh human heart which was removed from a 64-year-old British male.

The function of the right side of the heart (see right heart) is to collect deoxygenated blood, in the right atrium, from the body and pump it, via the right ventricle, into the lungs (pulmonary circulation) so that carbon dioxide can be dropped off and oxygen picked up (gas exchange). This happens through a passive process called diffusion. The left side (see left heart) collects oxygenated blood from the lungs into the left atrium. From the left atrium the blood moves to the left ventricle which pumps it out to the body. On both sides, the lower ventricles are thicker and stronger than the upper atria. The muscle wall surrounding the left ventricle is thicker than the wall surrounding the right ventricle due to the higher force needed to pump the blood through the systemic circulation.

The heart also secretes atrial natriuretic factor (ANF), a powerful peptide hormone that affects the blood vessels, the adrenal glands, the kidneys, and the regulatory regions of the brain in order to regulate blood pressure and volume.

You could get more information from the link below...

Answer 5

the heart is a pump and its walls are made of thick muscle that can contract and send blood rushing out. blood leaves the heart in special tubes called blood vessels. there are thick tubes called arteries that leave the heart, the blood rushes into these. (the biggest arterie is the aorta) soon the arteries branch out into into little blood vessels that carry the blood around the body. when you get far away from your heart (your toes maybe!) the blod vessels get smaller and smaller, so smal that you may need to use a microscope to see them, these tiny blood vessels are called capilleries when these capillaries bunch together they form blood vessels again, then the blood vessels carry the blood back to your heat. when you get closer to the heart there are are just a few big veins, these dump the blood back into your heart. this happens over and over again. the blood vessels, capilleries and veins are part of what scientist call the circulatory system. they say this is how the blood circulates the body (goes around!).
the heart is the pump that pushes it, the heart is a very important part of the circulatory system.
I really do hope this helps!!!
:-)

Answer 6

Science of The Heart: Exploring the Role of the Heart in Human Performance

An Overview of Research Conducted by the Institute of HeartMath


INTRODUCTION

For centuries, the heart has been considered the source of emotion, courage and wisdom. At the Institute of HeartMath (IHM) Research Center, we are exploring the physiological mechanisms by which the heart communicates with the brain, thereby influencing information processing, perceptions, emotions and health. We are asking questions such as: Why do people experience the feeling or sensation of love and other positive emotional states in the area of the heart and what are the physiological ramifications of these emotions? How do stress and different emotional states affect the autonomic nervous system, the hormonal and immune systems, the heart and brain? Over the years we have experimented with different psychological and physiological measures, but it was consistently heart rate variability, or heart rhythms, that stood out as the most dynamic and reflective of inner emotional states and stress. It became clear that negative emotions lead to increased disorder in the heart's rhythms and in the autonomic nervous system, thereby adversely affecting the rest of the body. In contrast, positive emotions create increased harmony and coherence in heart rhythms and improve balance in the nervous system. The health implications are easy to understand: Disharmony in the nervous system leads to inefficiency and increased stress on the heart and other organs while harmonious rhythms are more efficient and less stressful to the body's systems.

More intriguing are the dramatic positive changes that occur when techniques are applied that increase coherence in rhythmic patterns of heart rate variability. These include shifts in perception and the ability to reduce stress and deal more effectively with difficult situations. We observed that the heart was acting as though it had a mind of its own and was profoundly influencing the way we perceive and respond to the world. In essence, it appeared that the heart was affecting intelligence and awareness.

The answers to many of our original questions now provide a scientific basis to explain how and why the heart affects mental clarity, creativity, emotional balance and personal effectiveness. Our research and that of others indicate that the heart is far more than a simple pump. The heart is, in fact, a highly complex, self-organized information processing center with its own functional "brain" that communicates with and influences the cranial brain via the nervous system, hormonal system and other pathways. These influences profoundly affect brain function and most of the body's major organs, and ultimately determine the quality of life. Innervation of the major organs by the autonomic nervous system (ANS). Parasympathetic fibers pass through the cranium and sacrum; sympathetic fibers are associated with the thoracic and lumbar vertebrae. Proper functioning of the ANS is critical for the maintenance of health, while a number of health problems are associated with ANS dysfunction or imbalance. Emotions greatly affect the activity of the ANS and the balance between the two branches. For example, anger causes increased sympathetic activity and reduced parasympathetic. Constriction of the arteries resulting from excessive sympathetic stimulation can contribute to hypertension and heart attacks

Answer 7

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The human body needs blood and the heart provides us the blood we need. Without the heart, there will be no blood supply for our brain and throughout the whole body.

Answer 8

because it is a giant muscle and it pumps blood into the lungs where oxygen is put into the blood and the blood releses waste like carbon dioxide. then the oxygen rich blood is pumped to all the other parts of ur body and gives oxygen to other organs in exchange for waste. then it is pumped back into the heart where the whole cycle starts again.

Answer 9

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Answer 10

circulate the blood Thur the body.