Preferred Label : superior medullary velum;
Uberon definition : The superior medullary velum (anterior medullary velum, valve of Vieussens) is a thin,
transparent 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. [WP,unvetted].;
Uberon synonym : anterior medullary velum;
Uberon related term : rostral medullary velum;
Origin ID : 0002659;
UMLS CUI : C0152284;
Automatic exact mappings (from CISMeF team)
- Semantic type(s)
- UMLS correspondences (same concept)
- Uberon cross reference
- part of
The superior medullary velum (anterior medullary velum, valve of Vieussens) is a thin,
transparent 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. [WP,unvetted].
