Q:

What color is blood inside the body?

A:

Quick Answer

Human blood is red inside the body because of the numerous red blood cells, which contain hemoglobin. However, the blood color ranges from bright red to dark red.

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What color is blood inside the body?
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Full Answer

When blood leaves the heart to be transported to other organs, it carries oxygen in its hemoglobin. Blood looks bright red when oxygen is bound to the iron within it. Once oxygen is released to the tissues and carbon dioxide binds the deoxygenated blood, it looks darker in color. All vertebrates have red blood, and there are no circumstances in which it has been otherwise. This refutes the myth that deoxygenated blood is blue.

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    Is human blood really blue?

    A:

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    What is the function of hemoglobin?

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    What is the function of hemoglobin in the blood?

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    Why is blood red?

    A:

    The red color of blood comes from the hemoglobin that makes up the majority of the mass of the cell, which allows the blood cell to carry oxygen around the body. The plasma itself is a straw color when viewed under a microscope, but the hemoglobin makes up so much of the blood cell that its red color overpowers the color of the plasma. When a red blood cell is full of oxygen, the red has a scarlet tint to it, when it has released it's oxygen its more of a dark burgundy color.

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