How the Body Works : The Respiratory System
0:39
Added: 4 years ago
From: dizzo95
Views: 147,249
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  • Well said :)

    Asheyluvs2dance 1 week ago

  • Who narrates this, Stephen Hawking?

    DaynNightUK 2 weeks ago

  • great

    bbjeanlianda 6 months ago

  • Cool

    yozecool 8 months ago

  • too fast T_T

    xskullxkissesx 9 months ago

  • this is good man.. i liked it keep up the good work...and help us...

    penumak 1 year ago

  • thx

    sppankie 2 years ago

  • rolf..... lol

    zaidmuaz25 2 years ago

  • nycc..!

    sober22gurl 3 years ago

  • whats this for anyways

    abercrombielove96 3 years ago

  • oh my gosh thank you for whoever did this video! it helped me with my project soooo much!

    gabriellajaquery 4 years ago

  • Wonderful video!Shd have alook by the ones who hate Biology since it xplains systems well.Thanx for the video and xpect more from u.

    Sansaee 4 years ago

  • RAWN LUBEN!

    YAY LUBEZY THE BEWBYEZ!

    ninespoons 4 years ago

  • nems is a terrorist...

    tictac288 4 years ago

  • thanks for the video .. I wish that it was translated to Arabic language , because I didn't understod it well .. but thanks

    guzaal 4 years ago 2

  • i'm studying Biology too... how good it will be if we get more videos like this......

    addictor33 4 years ago

  • hey more please!

    I'm studying biology...and my teacher is teaching excretion, heart and respiratory system.

    I love this video! Put it in my ipod!

    macbookhl 4 years ago

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