Do the Circulation (cardiovascular system)

[TheAlfredaPerez]

LMFAO!! =) 

[foshrizzle]

lot of bs in the song... u can learn the same info in the first sentence of a textbook

[supercandy147]

i learned this in my science class. it helped(;

thanks OjailLizard

[MegaMagicStars]

This was soo useful and catchy :) thanks for the upload :D

[RavenHouseMystery]

Great memories of Schoolhouse Rock.  Out of control 70s hair at 1:35!:-)