The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.
Did you know?
Everyone has one nostril that is larger than the other.
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Thyroid conditions may make getting pregnant impossible.
Did you know?
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
Crohn's Disease
Summary of Cytokine Activity
Erythematous rash in Lyme disease in the pattern of a "bull's-eye" at the site of ...
The Benefits of Physical Fitness (1 of 2)
Loss of brain cells in a transgenic Huntington-disease mouse. (a) Section of normal mouse-brain stri