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Bill Nye the Science Guy - Season 4 Episode 16 : Heart

Bill Nye the Science Guy
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Your heart pumps your blood around your body, all hours, every day of the week, to keep you alive. Your heart is about the size of your fist, and it’s made of special muscle called “cardiac” (KAR-dee-ak) muscle. Cardiac muscle lets your heart keep the beat, it can also speed up or slow down, depending on what your body needs. Your heart works like an automatic pump – it squeezes, or contracts, and un-squeezes, or relaxes, to push blood through the four different sections of your heart. Valves, special one-way openings, are like little doors between the sections – making sure your blood moves in only one direction through your heart, to your lungs, back to your heart, and then around your body again.

Title Bill Nye the Science Guy - Season 4 Episode 16 : Heart
Alternative Titles 比尔教科学, Bill Nye, the Science Guy
First Air Date 1993-09-10
Last Air Date 1998-06-20
Number of Episodes 100
Number of Seasons 5
Genres Comedy, Documentary, Kids,
Networks PBS,
Casts Bill Nye, Rachel Glenn, Jennifer Lin, Amy Broder, Ethan Ferkiss
Self - Host
Self - Host
Bill Nye
Nancy
Nancy
Rachel Glenn
Jennifer Lin
Amy
Amy
Amy Broder
Smell Gibson
Smell Gibson
Ethan Ferkiss
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