Biology:Inferior medullary velum

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Inferior medullary velum
Gray708.svg
Scheme of roof of fourth ventricle. The arrow is in the foramen of Majendie.
1: inferior medullary velum
2: Choroid plexus
3: Cerebellomedullary cistern of subarachnoid cavity
4: Central canal
5: Corpora quadrigemina
6: Cerebral peduncle
7: superior medullary velum
8: Ependymal lining of ventricle
9: Pontine cistern of subarachnoid cavity
Details
Identifiers
Latinvelum medullare inferius
Anatomical terms of neuroanatomy

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 the infero-posterior part 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 taeniae.

See also

References