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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.