More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Nerve Links
Time course and phases of a nerve cell going from resting potential to action potential
Detecting Emotions in Facial Expressions
The two main types of nerve cells.
Testing motor function of cranial nerve VII - Frown