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Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.
Did you know?
The longest a person has survived after a heart transplant is 24 years.