Have you ever thought about how your muscles work? If you haven't, then welcome to the show! Our today's guests are Muscle, Brain, and Heart. They've got together to tell you more about themselves and each other. Why does Muscle put up with electric shocks Brain gives him? Who can exercise without rest and never get tired? And finally, who's boss here? About this and much more you will learn from today's show. Other videos you might like: 15 Human Body Parts That Will Disappear One Day https://www.youtube.com/watch?v=A1sgVb3YBAI& 99 QUICK AND FASCINATING FACTS ABOUT THE HUMAN BODY https://www.youtube.com/watch?v=bir5fhjCvPg& 10 Facts About the Female Body Very Few People Know About https://www.youtube.com/watch?v=yXGq8mMbxiw& TIMESTAMPS: Is Muscle really so lazy? 0:47 How Brain gets Muscle to work 1:51 Why does Muscle here feel so tired? 3:33 Why Heart never gets tired 6:26 Why aren’t all the muscles like this? 8:01 #humanbody #humanbrain #muscles Music by Epidemic Sound http://bit.ly/1NOjjY3 SUMMARY: - Deep within muscles, there are transverse tubules, or “T-tubules” for short. They house Calcium Channels, which are like on-off switches. They make Muscle tense or relax. - The calcium channels begin to leak calcium ions, and this is what happens as a result. First, the build-up of calcium ions causes Muscle to burn. He’s now working outside his comfort zone. - Then, when calcium ions leak out, this produces an enzyme that attacks and damages Muscle's tissue. Muscle feels pain after a tough workout because of this damage. - There’s only one way to make muscles stronger: train them to his limit pretty frequently. The more Muscle gets exercised to the point where calcium leakage occurs, the more resistant he becomes to its effects. - The thing is, he soon adapts and rebuilds, repairing the damage. It helps build not just strength but also endurance. - You see, skeletal muscle tires quickly. If this was to happen to a heart, it’d cause a heart attack. - To avoid that and allow for constant working without fatigue, cardiac tissue has a different arrangement – it has far more mitochondria, which produce way more energy in the form of a chemical called Adenosine Triphosphate. - Mitochondria are small organelles within cells. They’re the powerhouse of the cell. They convert glucose into energy. Having more of these means Heart will never run out of energy under normal circumstances. - Heart is special in that he has so many mitochondria. If all our muscles worked like him, the amount of energy we’d require would be enormous and unsustainable. Subscribe to Bright Side : https://goo.gl/rQTJZz ---------------------------------------------------------------------------------------- Our Social Media: Facebook: http://bit.ly/1NR4JJP Instagram: http://bit.ly/2pDikkf 5-Minute Crafts Youtube: http://bit.ly/2pNb6gr Photos: http://bit.ly/23rGg9b East News ---------------------------------------------------------------------------------------- For more videos and articles visit: http://bit.ly/2d8ayZz
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