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Bill Nye the Science Guy - Season 4 Episode 16 Heart

Trailer
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.

First Air Date: Sep 10, 1993

Last Air date: Jun 20, 1998

Season: 5 Season

Episode: 100 Episode

Runtime: 26 minutes

IMDb: 7.20/10 by 79.00 users

Popularity: 28.794

Language: English