HEALTH FACTS : KNOW YOUR MUSCLE, GROW YOUR MUSCLE

KNOW YOUR MUSCLE, GROW YOUR MUSCLE - 

GEORGEHEALTH.COM

1,146,160 views•Sep 16, 2014

GEORGE HEALTH

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How does your muscle work and how can we take advantage of it to stimulate most muscle growth?

 

The thick and thin filaments do the actual work of a muscle, and the way they do this is pretty cool. Thick filaments are made of a protein called myosin. At the molecular level, a thick filament is a shaft of myosin molecules arranged in a cylinder. Thin filaments are made of another protein called actin. The thin filaments look like two strands of pearls twisted around each other.

 

During contraction, the myosin thick filaments grab on to the actin thin filaments by forming crossbridges. The thick filaments pull the thin filaments past them, making the sarcomere shorter. In a muscle fiber, the signal for contraction is synchronized over the entire fiber so that all of the myofibrils that make up the sarcomere shorten simultaneously.

 

Animation thanks to Biology / Medicine Animations HD. Subscribe to them on YouTube.

 

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