Blood changes colors when it exits from the body because it touches the air, thus causing blood to change colors. The oxygen changes the color mostly, but I'm sure they're are other factors too.
Blood in the arteries has just picked up a load of oxygen from the lungs. After delivering the oxygen to parts of the body, it returns by the veins. The oxygen content causes the cells of the blood to change color from bright red to very dark red.
bleeding
the answer is quite simple ...... carbon dioxide is the waste gas and it leaves the blood and then leaves the body when you exhale.
Octopus communicate with each other by the movement of their body and the change of body colors.
purple in the body and red outside the body or in oxygen
Jesus was born with a body and blood.
left ventricle
Carbon dioxide leaves the blood and travels through the lungs before leaving your body.
NUTRIENTS AND OXYGEN also water, minerals, and vitamins
Blood does not automatically freeze when it leaves the body. It depends on the ambient temperature.
The blood that leaves the frogs heart through the ventricles is almost pure blood. This blood goes to the brain.
Aortic Artery is the main artery that leaves your heart with the blood supply for your body.