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Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.