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Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Overview of blood flow through vessels in a closed circulatory system. Overview of blood flow through vessels in a closed circulatory system.
ABO Blood Reactions Are Important in Transfusions ABO Blood Reactions Are Important in Transfusions
Blood-brain barrier Blood-brain barrier
A finger-stick is useful for obtaining small amounts of blood. A finger-stick is useful for obtaining small amounts of blood.
Control of blood glucose level. Control of blood glucose level.
Distingutioning features of blood vessels Distingutioning features of blood vessels
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

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