There are 20 feet of blood vessels in each square inch of human skin.
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.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Republican candidates John McCain and Sarah Palin campaign at Franklin & Marshall University in
It is important to act concerned when a patient is upset.
Whites pour mustard and ketchup over black (and white) students who were integrating a lunch counter ...
Jeremy Deller, A Good Day for Cyclists (painted by Sarah Tynan).
Spoon a few chunks of tofu onto your salad bar lunch for extra calcium