What Color Is Blood
What Color Is Blood. But if you shine a light on the blood that contains green light but no red light, the green color of blood becomes obvious. In fact, human blood is never blue.
Blood gets its color from red blood cells called hemoglobin, to which oxygen binds. You can tell this by holding your hand up to a light and looking through it - you will see a red glow, the color of your blood filtering all of the non-red light from the light source beyond your hand. Human blood is originally red in color.
Bright red blood usually means bleeding that's low in your colon or rectum.
The function of all blood is to transport vital substances around the body.
It may signal a problem with the prostate. Brown or dark red blood has not had as long to oxidize as black blood and can. Color of Blood is well written, reads easily and leaves the reader wanting more from this author.
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