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In 1864, the first barbiturate (barbituric acid) was synthesized.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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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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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Acromegaly in one individual from a pair of identical twins. Acromegaly in one individual from a pair of identical twins.
DNA molecules replicate to form identical chromatids DNA molecules replicate to form identical chromatids
#38.Genetically identical organisms derived from a single genetic source are #39 #38.Genetically identical organisms derived from a single genetic source are #39
Identical twins (monozygotic twins) have the same sex and share a single genotype. Identical twins (monozygotic twins) have the same sex and share a single genotype.
Cut the figure into two identical parts Cut the figure into two identical parts
Epigenetic modifications to the genome alter the spacing of nucleosomes Epigenetic modifications to the genome alter the spacing of nucleosomes
Video: Aneurysm

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