
The Science Behind the Pulse in Our Bodies
Clip: Episode 2 | 2m 39sVideo has Closed Captions
Human life depends on our bodies ability to process oxygen to keep our cells alive.
It's the circulatory system that provides every cell in our body with the juice they need to function. The human body can only survive about three minutes without oxygen, and it's this incredibly vast network that is responsible for delivering this life-giving gas to all 40 trillion cells in the body.
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The Science Behind the Pulse in Our Bodies
Clip: Episode 2 | 2m 39sVideo has Closed Captions
It's the circulatory system that provides every cell in our body with the juice they need to function. The human body can only survive about three minutes without oxygen, and it's this incredibly vast network that is responsible for delivering this life-giving gas to all 40 trillion cells in the body.
Problems with Closed Captions? Closed Captioning Feedback
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Human: The World Within is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
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Learn Moreabout PBS online sponsorshipBlood Vessels and Circulatory Movement
Video has Closed Captions
Clip: Ep2 | 2m 8s | Human bodies are designed to move in order to circulate blood and nutrients to every cell. (2m 8s)
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Preview: Ep2 | 30s | See the world beneath the human heartbeat that makes our craziest feats possible. (30s)
Functions of the Heart and Lungs
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Clip: Ep2 | 1m 25s | Our heart and lungs circulate oxygen throughout our blood vessels to keep cells alive. (1m 25s)
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