Beakman's World
The Heart
Beakman explains what the heart is and how it works using a model and an animated clip. He shows how it contracts to move blood around and that the blood carries nutrients and oxygen to all of your cells.
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Video Transcript
0:02
how does your heart pump blood
0:04
through your
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hey Brian
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your hearts in the right place and so's your question
0:12
let's get pumping on the heart
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first thing we have to discuss is a heart and building
0:19
I mean
0:19
an apartment building
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I love you
0:22
this building
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has lots of individual apartments
0:25
and every one of them has systems that will provide basic things like
0:30
are
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food
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energy away to take out the garbage
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TV
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cable TV
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things that keep up
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the quality of life
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your body also has lots of individual Apartments
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trillions of living organisms called
0:50
and just like the apartments in the building the cells in your body needs air water and food
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and how does all that stuff gets to the cells
1:00
body
1:01
Lester
1:03
the prison guard spring
1:07
wrong
1:09
the food and oxygen your cells need our carry through them by
1:13
your blood
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to get that blood through the hundred thousand miles of arteries
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veins and capillaries in your body
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we need a very powerful pump
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and the name of that pump is
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the heart
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it's only as big
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as your fist it weighs less than a pound
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but in a lifetime your heart will pump about 50 million gallons
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enough to fill two thousand five hundred railroad cars
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that would make a train of blood more than 21 miles long
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so the heart is a muscle
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that's right
1:52
the heart is a muscle
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that's a pump that pumps blood to the cells in our body
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you know something Liza
1:59
your own
2:00
man after my own pump
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but how does something this little do all that week
2:06
out of something this big do so little work
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hey
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one question at a time
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let's take a look
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at the human heart
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here are the four chambers of the human heart
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when the upper chambers or Atria contract blood is squeezed through these valves into the lower Chambers
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or ventricles
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these valves here make sure to blood can only flow in One Direction
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when the ventricles contract these valves open allowing two things to happen
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the right ventricle here sends blood up to my lungs where it picks up the oxygen that turns it blood red
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the left ventricle take stat blood that's now full of oxygen
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and pumps it to every cell in my body
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which gives me my incredibly envied Verve and
3:00
Stow
3:03
the Wretch like Me have hot tool
3:06
Lester
3:07
you're not a rat
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you're a guy in a red suit remember
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me will ya
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you're a rat in a red suit
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well
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whatever you are you have a heart
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and you know something
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people aren't the only animals with hearts
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behold the hummingbird
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it's Freckle sized flutter flapper is the fastest Beating Heart in the animal kingdom
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it can be over a thousand times a minute
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on the other hand a blue whale has a heart the size of a speedboat
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it only has to beat around 25 times a minute
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the human heart beats about 72 times a minute
3:55
-
4:01
that's music to my ears
4:09
Mexican for lunch again
4:15
well maybe a top
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so Bryan Sorensen of Orlando Florida
4:21
thank you for your question
4:22
I'm glad we could have this heart-to-heart talk about
