Muscles, part 1 - Muscle Cells: Crash Course A&P #21
We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contractin...
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Romeo and Juliet. Helen and Paris. Tristan and Isolde.These famous star-crossed lovers bring to mind insatiable longing, forbidden love, andtragic separation. And poets and emo rockers love them for it.But you know where else you can find a nice hot romance?Your muscle cells.They’ve got their own famous coupling -- a pretty pair of tiny protein strands called actin and myosin.Romeo and Juliet may have set a chain of tragic events into motion with their infatuation,but deep down in the cells of your muscles, the hot protein action between actin and myosinis actually, literally causing all of your motions. ALL of them.And I don’t just mean voluntary stuff, like walking down the street, or moving your mouthso you can talk or chew chips. Because your muscles als...
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Romeo and Juliet. Helen and Paris. Tristan and Isolde.These famous star-crossed lovers bring to mind insatiable longing, forbidden love, andtragic separation. And poets and emo rockers love them for it.But you know where else you can find a nice hot romance?Your muscle cells.They’ve got their own famous coupling -- a pretty pair of tiny protein strands called actin and myosin.Romeo and Juliet may have set a chain of tragic events into motion with their infatuation,but deep down in the cells of your muscles, the hot protein action between actin and myosinis actually, literally causing all of your motions. ALL of them.And I don’t just mean voluntary stuff, like walking down the street, or moving your mouthso you can talk or chew chips. Because your muscles als...
