Blood is basically your body crying.By crying I mean that red stuff might come out of a picked scab or an injury of any sort that broke the skin.I made this cause apparently it has no definition here.Human blood comes from humans as you might have guessed.Try to wash it off with not a lot of pressure and bandage if needed.
G:Ow!
Other g:what’s wrong
G:I just picked at my scab...there’s a bit of blood though
Other g:ah!That must hurt!
G:it’s alright I can clean it up...
Red liquid that is pumped by the heart and circulated in the veins of humans and other vertebrate animals, carrying oxygen and carbon dioxide from the tissues of the body.
Doctor: The patient lost lots of blood because of the accident, and since needs blood transfusion