The frenulum veli, or frenulum of superior medullary velum, also known as the ''frenulum veli medullaris superioris'', ''cerebellar frenulum'', or ''frenulum cerebelli'' is a slightly raised white band passing from the inferior end of the
medial longitudinal fissure, through the groove between the
quadrigeminal bodies, and down to the
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.
It fo ...
.
On either side of this band the
trochlear nerve emerges, and passes forward on the lateral aspect of the
cerebral peduncle
The cerebral peduncles are the two stalks that attach the cerebrum to the brainstem. They are structures at the front of the midbrain which arise from the ventral pons and contain the large ascending (sensory) and descending (motor) nerve trac ...
to reach the base of the brain.
References
* Crosby EC, Humphrey T, Lauer EW, ''Correlative Anatomy of the Nervous System'', New York: MacMillan, 1962.
* Stedman, Thomas Lathrop, ''Stedman's Medical Dictionary'' (24th edition), Williams and Wilkins Co., Baltimore, 1982.
Cerebrum
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