Autonomic

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Gr. autos = self, and nomos = law. Hence the part of the nervous system which is self-controlled or autonomous.

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Autopsy

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Gr. autos = self, and opsis = to look at. In the third century B.C., the word autopsia denoted those observations on the patient made by the physician himself, in contrast to…

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Axis

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L. axis  = axle or pivot. Also refers to the second cervical vertebrae (C2).

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Azygos

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Gr. a = not, and zygos = a yoke. Therefore, this applies to any unpaired or unyoked structure, such as the azygos vein or the azygos lobe of the lung.

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Bacterium

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L. bacterium is the latinisation of the Greek bakterion = staff, cane. The first bacteria observed by Dutch microscopist Antonie van Leeuwenhoek in 1676, were rod-shaped. The term was introduced as a scientific word…

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