Dentate nucleus
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It has been suggested that this article or section be merged into cerebellum#Deep_nuclei. (Discuss) |
| Brain: Dentate nucleus | ||
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| Sagittal section through right cerebellar hemisphere. The right olive has also been cut sagitally. (Nucleus dentatus labeled at top.) | ||
| Latin | nucleus dentatus | |
| Gray's | subject #187 796 | |
| Part of | cerebellum | |
| Artery | superior cerebellar artery | |
| NeuroNames | hier-680 | |
| Dorlands/Elsevier | n_11/12580950 | |
The Dentate nucleus is located within the deep white matter of each cerebellar hemisphere. It is the largest of the four deep cerebellar nuclei, the others being the fastigial nucleus and the interposed nucleus (globose and emboliform nuclei combined). It is responsible for the planning, initiation and control of volitional movements. It therefore receives its afferents from the premotor cortex and the supplementary motor cortex (via the pontocerebellar system). Its efferents project via the superior cerebellar peduncle to the contralateral red nucleus and ventrolateral thalamus (crossing over at the pontomesencephalic junction).
It consists of an irregularly folded lamina, of a grayish-yellow color, containing white fibers, and presenting on its antero-medial aspect an opening, the hilus, from which most of the fibers of the superior peduncle emerge.
[edit] Additional images
 Dissection of brain-stem. Lateral view. |
 Deep dissection of brain-stem. Lateral view. |
 Deep dissection of brain-stem. Lateral view. |
 Rhomboid fossa. |
[edit] External links
- Photo at umdnj.edu
- Atlas of anatomy at UMich n2a7p6
- Atlas of anatomy at UMich n2a7p9
- http://www.mona.uwi.edu/fpas/courses/physiology/neurophysiology/Cerebellum.htm
- http://www.neuroanatomy.wisc.edu/cere/text/P5/dentate.htm
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 As such, some of the information contained herein may be outdated.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.
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