Horizontal fissure of cerebellum

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Brain: Horizontal fissure of cerebellum
Upper surface of the cerebellum.
Sagittal section of the cerebellum, near the junction of the vermis with the hemisphere.
Latin fissura (or sulcus) horizontalis (cerebelli)
Gray's subject #187 789
NeuroNames ancil-658
Dorlands/Elsevier f_08/12365521

The largest and deepest fissure in the cerebellum is named the horizontal sulcus (or horizontal fissure).

It commences in front of the pons, and passes horizontally around the free margin of the hemisphere to the middle line behind, and divides the cerebellum into an upper and a lower portion.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

Rhombencephalon (hindbrain)

MYELENCEPHALON/MEDULLA: arcuate nucleus of medulla, solitary nucleus, hypoglossal nucleus, nucleus ambiguus, olivary body, inferior olivary nucleus, cuneate nucleus, accessory cuneate nucleus, gracile nucleus, inferior salivatory nucleus, raphe nuclei (obscurus, magnus, pallidus), area postrema, posterior nucleus of vagus nerve

METENCEPHALON/CEREBELLUM: cerebellar vermis, flocculus, arbor vitae

METENCEPHALON/PONS: pontine tegmentum, superior salivary nucleus, trapezoid body, pontine nuclei (superior olivary nucleus, trigeminal nerve nuclei, abducens nucleus, facial motor nucleus, cochlear nuclei, vestibular nuclei), locus ceruleus, paramedian pontine reticular formation, nucleus centralis superior

FOURTH VENTRICLE: obex, median aperture