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The Ins and Outs of the Heart

When most peeps think of the word "heart" they think of love, romance and all that mushy stuff. Those things are great and all, but let's also give your heart props for what it really is - an amazingly powerful life-sustaining organ.

Pump Up the Oxygen

To put it simply, your heart is a pump. Much like that gizmo in your fish tank, your heart moves liquid from one place to another. In the process, the heart re-oxygenates the blood moving through it with the oxygen you breathe in. This is an essential process cuz your blood supplies oxygen to your entire body. If you don't get oxygen for more than a few minutes, you'll die.

Basic Anatomy

Your heart is a cone-shaped muscle in the middle of your chest, right between your lungs. The average adult heart weighs between 9 - 10.5 ounces (255 - 298 grams) and it pumps about 1,900 gallons (7,200 liters) of blood every day. The heart has three layers: the endocardium (outside layer), the myocardium (middle layer) and the pericardium (the fluid sack that surrounds the heart). The heart is also divided up into four chambers, which each have a valve that allows blood to flow in, but prevents blood from flowing backwards.

In Action

The heart squeezes blood out and into the rest of the circulatory system when it contracts. When it expands, it sucks in poorly oxygenated blood and pushes through the chambers and into the pulmonary artery, where it is re-oxygenated. Then the blood makes its way out of the heart via the aorta and back into the body where it provides your cells with oxygen.

Did U Know?

  • In the average person's life, their heart will beat 2.5 billion times.
  • Heart disease is the leading cause of death in North America. More than 2,000 Americans die from heart disease everyday.
  • Your heart is about the size of your fist.
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What Causes Heart Disease?

  • Genetics.
  • Eating too many high-fat foods.
  • Smoking.
  • All of the above.

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Abbergrl
Abbergrl posted in Say Anything:
"AVENGERSASSEMBLE" wrote: "Abbergrl" wrote: "AVENGERSASSEMBLE" wrote: Anyone Doing Any Better??? Yes I Hope :) ;) Slightly better now, yes (: Oh I'm so glad!!! :) :)
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Twentyone-pilots21
that was really great
reply about 2 hours
AVENGERSASSEMBLE
"Abbergrl" wrote: "AVENGERSASSEMBLE" wrote: Anyone Doing Any Better??? Yes I Hope :) ;) Slightly better now, yes (: Oh I'm so glad!!! :)
reply about 2 hours
AVENGERSASSEMBLE
I know hopefully it gets better
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AVENGERSASSEMBLE
I'm sure many linkin park fans know that Chester died on July 20th 2017 and to those who don't know he Killed Himself we'll never know what was going on inside of his head but all I know is that Heaven has gained a great soul on the 20th please let me know how you feel about it and use the #chesterslegend or #chester7-20-17 Sorry to all of his six children and friends and family Suicide is a growing thing it seems as if Everytime you turn around somewhere someone Killed themselves I feel so horrible that someone is going through so much that they feel the only way it's going to get better is to kill themselves Quoted -"Suicide don't end the chances of life getting worse it ends the chances of life getting better." So please if you are going through something tell some message me I'll try to make you feel better. Please don't hesitate to contact someone if you are at breaking point. Do it so this world keeps a life worth living no Matter what you might think YOU ARE WORTH IT DON'T LET ANYONE TELL YOU OTHERWISE... please have a great day
reply about 2 hours