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Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

The skeletal system of a modern horse The skeletal system of a modern horse
Divisions of the nervous system. Divisions of the nervous system.
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Circulatory System of a Shark Circulatory System of a Shark
Organs of the human male reproductive system, their functions, and locations. Organs of the human male reproductive system, their functions, and locations.
Video: Calvin cycle (The light-independent reactions )

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