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There are more sensory neurons in the tongue than in any other part of the body.

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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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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Range of Motion of the Temporomandibular Joint, Moving the Jaw From Side to Side Range of Motion of the Temporomandibular Joint, Moving the Jaw From Side to Side
Side view of the cranium and facial bones. Side view of the cranium and facial bones.
The dorsal-column medial-lemniscus system. The pathways from only one side of the body are shown. The dorsal-column medial-lemniscus system. The pathways from only one side of the body are shown.
What’s a Menstrual Cup and How Does It Work? What’s a Menstrual Cup and How Does It Work?
Time spent on, paid work and housework, by living arrangements of Canadian Time spent on, paid work and housework, by living arrangements of Canadian
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

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