Superior medullary velum

The superior medullary velum (anterior medullary velum) is a thin, transparent lamina of white matter, which stretches between the superior cerebellar peduncles; on the dorsal surface of its lower half the folia and lingula are prolonged.

Superior medullary velum
Coronal section of the pons, at its upper part. (Ant. med. velum labeled at center top.)
Anterior view of the cerebellum. (Ant. medullary velum labeled at center top.)
Details
Identifiers
Latinvelum medullare superius
NeuroNames593
NeuroLex IDbirnlex_1300
TAA14.1.05.007
A14.1.05.719
FMA74508
Anatomical terms of neuroanatomy

It forms, together with the superior cerebellar peduncle, the roof of the upper part of the fourth ventricle; it is narrow above, where it passes beneath the facial colliculi, and broader below, where it is continuous with the white substance of the superior vermis.

A slightly elevated ridge, the frenulum veli, descends upon its upper part from between the inferior colliculi, and on either side of this the trochlear nerve emerges.

Blood is supplied by branches from the superior cerebellar artery.

Additional images
  • Scheme of roof of fourth ventricle. 1. Posterior medullary velum 2. Choroid plexus 3. Cisterna cerebellomedullaris of subarachnoid cavity 4. Central canal 5. Corpora quadrigemina 6. Cerebral peduncle 7. Anterior medullary velum 8. Ependymal lining of ventricle 9. Cisterna pontis of subarachnoid cavity (Arrow = Flow of cerebrospinal fluid (CSF) through foramen of Magendie)
  • Mesal aspect of a brain sectioned in the median sagittal plane.
  • Rhomboid fossa.
  • Human brain midsagittal view description
  • Fourth ventricle. Posterioe view.Deep dissection.

See also

References

This article incorporates text in the public domain from page 793 of the 20th edition of Gray's Anatomy (1918)


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