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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?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.