Superior medullary velum

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
Latin	velum medullare superius
NeuroNames	593
NeuroLex ID	birnlex_1300
TA98	A14.1.05.007 A14.1.05.719
TA2	5976
FMA	74508
Anatomical terms of neuroanatomy

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.

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

• Inferior medullary velum

References

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

External links

• Atlas image: n2a8p1 at the University of Michigan Health System