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Topic: Occipital


In the News (Sat 26 Dec 09)

  
  biology - Occipital bone
From the external occipital protuberance a ridge or crest, the median nuchal line, often faintly marked, descends to the foramen magnum, and affords attachment to the ligamentum nuchæ; running from the middle of this line across either half of the nuchal plane is the inferior nuchal line.
The superior angle of the occipital bone articulates with the occipital angles of the parietal bones and, in the fetal skull, corresponds in position with the posterior fontanelle.
The occipital, like the other cranial the outer and inner tables, between which is the cancellous tissue or diploë; the bone is especially thick at the ridges, protuberances, condyles, and anterior part of the basilar part; in the inferior fossæ it is thin, semitransparent, and destitute of diploë.
biosphere.biologydaily.com /biology/Occipital_bone   (1864 words)

  
 Dr. Koop - Occipital Neuralgia- Health Encyclopedia and Reference
Occipital neuralgia is a term used to describe a cycle of pain-spasm-pain originating from the suboccipital area (base) of the skull that often radiates to the back, front, and side of the head, as well as behind the eyes.
The occipital nerves are two pairs of nerves that originate in the area of the second and third vertebrae of the neck.
While the occipital nerves do not directly connect with structures within the skull itself, they do interconnect with other nerves outside of the skull and form a continuous neural network that can affect any given area through which any of the main nerves or their branch fibers pass.
www.drkoop.com /encyclopedia/93/536.html   (489 words)

  
 Reference.com/Encyclopedia/Occipital lobe
The primary visual cortex is Brodmann area 17, located in the interior portion of the occipital lobe at the calcarine sulcus and sometimes continuing onto the surface of the lobe.
The occipital lobes are the smallest of four true lobes in the human brain.
Cells on the posterior aspect of the occipital lobes' gray matter are arranged as a spatial map of the retinal field.
www.reference.com /browse/wiki/Occipital_lobe   (537 words)

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