Inferior medullary velum
| Inferior medullary velum | |
|---|---|
 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 | |
| Latin | velum medullare inferius |
| NeuroNames | hier-694 |
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.
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This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
This article is issued from Wikipedia - version of the 5/19/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.