View source for Inferior medullary velum

{{Infobox Brain|
  Name            = Inferior medullary velum |
  Latin           = velum medullare inferius |
  GraySubject     = |
  GrayPage        = 794 |
  Image           = Gray708.svg|
  Caption         = Scheme of roof of [[fourth ventricle]]. The arrow is in the [[foramen of Majendie]].<BR>1: inferior medullary velum<BR>2: [[Choroid plexus]]<BR> 3: [[Cerebellomedullary cistern]] of [[subarachnoid cavity]]<BR>4: [[Central canal]]<BR>5: [[Corpora quadrigemina]]<BR>6: [[Cerebral peduncle]]<BR>7: [[superior medullary velum]]<BR>8: [[Ependymal]] lining of ventricle<BR>9: [[Pontine cistern]] of [[subarachnoid cavity]] |
  Image2          = |
  Caption2        = |
  IsPartOf        = |
  Components      = |
  Artery          = |
  Vein            = |
  BrainInfoType   = hier |
  BrainInfoNumber = 694 |
  MeshName        = |
  MeshNumber      = |
  DorlandsPre     = v_05 |
  DorlandsSuf     = 12849291  |
}}


==Overview==
The '''inferior medullary velum''' ('''posterior medullary velum''') is a thin layer of white substance, prolonged from the white center of the [[cerebellum]], above and on either side of the nodule; it forms a part of the roof of the [[fourth ventricle]]. 

Somewhat semilunar in shape, its convex edge is continuous with the white substance of the cerebellum, while its thin concave margin is apparently free; in reality, however, it is continuous with the epithelium of the ventricle, which is prolonged downward from the posterior medullary velum to the ligulæ.

{{Gray's}}
{{Rhombencephalon}}
[[Category:Neuroanatomy]]
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