Mindblown: a blog about philosophy.

Substance that produces blood.  

Blood in the chest.  

Image of blood under the microscope.  

Portion of a developing vertebra that forms a rib and its cartilage.  

Brown coloring matter in urine.  

Brown coloring matter in blood.  

Production of bacteria-disrupting substances in blood.  

Substance in blood that disrupts bacteria.  

Promoting blood flow.  

Clumping of red blood cells.