occipital crest

occipital crest n either of the two ridges on the occipital bone connecting the occipital protuberances and foramen magnum:
a) a median ridge on the outer surface of the occipital bone that with the external occipital protuberance gives attachment to the ligamentum nuchae called also external occipital crest, median nuchal line
b) a median ridge similarly situated on the inner surface of the occipital bone that bifurcates near the foramen magnum to give attachment to the falx cerebelli called also internal occipital crest

Medical dictionary. 2011.

Look at other dictionaries:

  • occipital crest — noun 1. : either of the two ridges connecting the occipital protuberances and foramen magnum 2. : a transverse ridge at the upper posterior border of the skull of many animals between the occipital and parietal segments 3. : a crest of feathers… …   Useful english dictionary

  • occipital crest — a vertical blade on the occipital bone formed from ossification of the connective septum separating occipital myomeres …   Dictionary of ichthyology

  • occipital crest external — crista occipitalis externa …   Medical dictionary

  • occipital crest internal — crista occipitalis interna …   Medical dictionary

  • Internal occipital crest — Bone: Internal occipital crest Occipital bone. Inner surface. (Internal occipital crest not labeled, but occipital sinus is visible at center.) …   Wikipedia

  • external occipital crest — n OCCIPITAL CREST (a) …   Medical dictionary

  • internal occipital crest — n OCCIPITAL CREST (b) …   Medical dictionary

  • Occipital condyle — Occipital bone. Outer surface. (Condyle for artic. with atlas labeled at lower left.) Latin condylus occipitalis Gray s …   Wikipedia

  • occipital protuberance — n either of two prominences on the occipital bone: a) a prominence on the outer surface of the occipital bone midway between the upper border and the foramen magnum that with the external occipital crest gives attachment to the ligamentum nuchae… …   Medical dictionary

  • occipital bone — n a compound bone that forms the posterior part of the skull and surrounds the foramen magnum, bears the condyles for articulation with the atlas, is composed of four united elements, is much curved and roughly trapezoidal in outline, ends in… …   Medical dictionary

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