Superior medullary velum

Superior medullary velum

Infobox Brain
Name = PAGENAME
Latin = velum medullare superius
GraySubject = 187
GrayPage = 793


Caption = Coronal section of the pons, at its upper part. (Ant. med. velum labeled at center top.)


Caption2 = Under surface of the cerebellum. (Ant. medullary velum labeled at center top.)
IsPartOf =
Components =
Artery =
Vein =
Acronym =
BrainInfoType = hier
BrainInfoNumber = 588
MeshName =
MeshNumber =
DorlandsPre = v_05
DorlandsSuf = 12849304
The superior medullary velum (anterior medullary velum, valve of Vieussens) is a thin, transparent lamina of white substance, 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 inferior colliculi, and broader below, where it is continuous with the white substance of the superior vermis.

A slightly elevated ridge, the fraenulum 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.

ee also

* Inferior medullary velum


=Additional

External links

*


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