Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
Did you know?
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Medication errors are three times higher among children and infants than with adults.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Some different varieties of asymmetrical balance.
Preparing a Urine Specimen for Microscopic Examination (for Classroom Evaluation Only)
Nitrogen Balance and Imbalance
Becoming a Teacher
When the teacher about to switch the PowerPoint and you still not done taking notes