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atlas
(redirected from Atlas the book)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
atlas /at·las/ (at´las) the first cervical vertebra.
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Atlas. (A), (Top) superior aspect; (bottom) transverse aspect. Note the absence of the body and spinous process. (B), Position.

at·las (tls)
n.
The top or first cervical vertebra of the neck, supporting the skull and articulating with the occipital bone and rotating around the dens of the axis.

atlas
Etymology: Gk, atlas, to bear, a mythical giant, compelled to uphold the world
the first cervical vertebra, articulating with the occipital bone and the axis.

atlas [at´las]
the first cervical vertebra, the uppermost segment of the vertebral column, which supports the skull.
 Atlas. (A), (top) superior aspect; (bottom) transverse aspect. Note the absence of the body and spinous process. (B), position. From Dorland's, 2000.

atlas,
n C1, the first cervical vertebra. The skull sits upon this vertebra, which allows the head to tilt forward and backward. The atlas rests on the axis, allowing for rotation. See also axis.
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Atlas.

atlas,
n the first cervical vertebra articulating superiorly with the occipital bone and inferiorly with the axis (second cervical vertebra).

atlas
the first cervical vertebra, the uppermost segment of the backbone which supports the skull, characterized by the absence of a body and a wide vertebral canal.

ATLAS
Cardiology A five-yr, randomized, double-blind trial–Assessment of Treatment with Lisinopril & Survival–which evaluated the effect of high vs low doses of Zestril®/lisinopril on M&M in Pts with CHF; high doses appear to be effective. See Lisinopril Sports medicine A 5-yr controlled trial–Athletes' Training and Learning to Avoid Anabolic Steroids begun in 1993 and funded by the National Institute of Drug Abuse. See Anabolic steroids.


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