6/27/2013 10:09 AM
Edited Date/Time: 6/27/2013 10:10 AM
Guys lets clear stuff up and see If I remember this correctly from all my sciences classes. The heart is divided into two main parts and usually when learning about the type of blood that runs through the heart one part is blue and one part is red. This belief that blood is blue is not true. The reason you guys think blood is blue is because in science books blood is seperated by blue and red blood. "Blue blood" means blood which lacks oxygen therefore it turns blue once it runs through the hearts arteries and comes back again it passes through the "red part" of the heart. When the "blue blood" (really red blood just low on oxygen) passes through the "red part" of the heart it becomes oxygenated therefore making the low oxygen blood into oxygen rich blood.
So..... no blood is never blue it's just better to understand the human body separating the types of bloods that run through our system.