Dear Lungs,

I am one of the many hard working cells living in the heart of Rachel Crockett. We heart cells have received word that the muscle cells need more oxygen to stay functioning comfortable. They have requested that we, in the heart, pump more blood to you, for oxygen, and then on to them. We just wanted to give you a heads up.

Sending blood for oxygen your way,

Kara, a heart cell

Created By: RachelKC

Uploaded To: From one cell to another


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