Horizontal fissure of cerebellum

Short description: Horizontal groove in the middle of the cerebellum

Horizontal fissure of cerebellum

Lateral view of brain. Horizontal fissure lined in red.

File:Horizontal fissure of cerebellum by Sanjoy Sanyal.webm

Dissection video (34 sec)

Details
Identifiers
Latin| fissura (or sulcus) horizontalis (cerebelli)
Anatomical terms of neuroanatomy

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

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.

## Additional images

* Animation. Horizontal fissure lined in red.

* Upper surface of the cerebellum.

* Sagittal section of the cerebellum, near the junction of the vermis with the hemisphere.

## References

## External links

* NIF Search - Horizontal Fissure via the Neuroscience Information Framework

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Anatomy of the cerebellum

Surface|

| Lobes|

* Anterior lobe
* Posterior lobe
* Horizontal fissure
* Flocculonodular lobe
* Flocculus
* Nodule
* Primary fissure

|

Medial/lateral|

* Vermis: anterior
* Central lobule
* Culmen
* Lingula
* posterior
* Folium
* Tuber
* Uvula
* Vallecula of cerebellum

* Hemisphere: anterior
* Alar central lobule
* posterior
* Biventer lobule
* Cerebellar tonsil

Grey matter|

| Deep cerebellar nuclei|

* Dentate
* interposed
* Emboliform
* Globose
* Fastigial

|

Cerebellar cortex|

* Molecular layer
* Stellate cell
* Basket cell

* Purkinje cell layer
* Purkinje cell
* Bergmann glia cell = Golgi epithelial cell
* Fañanas cell

* Granule cell layer
* Golgi cell
* Granule cell
* Unipolar brush cell

* Fibers: Mossy fibers
* Climbing fiber
* Parallel fiber

White matter|

| Internal|

* Arbor vitae

|

Peduncles|

* Inferior (medulla): Dorsal spinocerebellar tract
* Olivocerebellar tract
* Cuneocerebellar tract
* Juxtarestiform body (Vestibulocerebellar tract)
* Trigeminocerebellar fibers

* Middle (pons): Pontocerebellar fibers

* Superior (midbrain): Ventral spinocerebellar tract
* Dentatothalamic tract

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