| 词条 | Inferior medullary velum |
| 释义 |
| Name = Inferior medullary velum | Latin = velum medullare inferius | Image = Gray708.svg | Caption = 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 | Image2 = | Caption2 = | IsPartOf = | Components = | Artery = | Vein = }} 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{{Gray's}}{{Cerebellum}}{{Ventricular system}}{{Portal bar|Anatomy}} 1 : Neuroanatomy |
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