Cuneate nucleus

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Brain: Cuneate nucleus
Dissection of brain-stem. Dorsal view. (Label for "nucleus cuneatus" is on left, third from the bottom.)
Section of the medulla oblongata at about the middle of the olive.
Latin	nucleus cuneatus
Gray's	subject #187 774
Part of
Components
Artery
Vein
BrainInfo/UW	hier-764
MeSH	[1]

One of the dorsal column nuclei, the cuneate nucleus is a wedge-shaped nucleus in the closed part of the medulla oblongata. It contains cells that give rise to the cuneate tubercle, visible on the posterior aspect of the medulla. It lies laterally to the gracile nucleus and medial to the spinal trigeminal nucleus in the medulla.

Contents 1 Function 2 Pathology 3 See also 4 Additional images 5 External links

[edit] Function

The cuneate nucleus is part of dorsal column-medial lemniscus system, carrying fine touch and proprioceptive information to the thalamus and cerebellum.

[edit] Pathology

It may be affected by vitamin E deficiency exhibiting neuroaxonal swelling.

[edit] See also

• Fasciculus cuneatus

[edit] Additional images

Decussation of pyramids.	Dissection of brain-stem. Lateral view.	Deep dissection of brain-stem. Lateral view.	Superior terminations of the posterior fasciculi of the medulla spinalis.
Diagram showing the course of the arcuate fibers.	The formatio reticularis of the medulla oblongata, shown by a transverse section passing through the middle of the olive.	Scheme showing the course of the fibers of the lemniscus; medial lemniscus in blue, lateral in red.	Gray714.png Transverse section passing through the sensory decussation.
Deep dissection of cortex and brain-stem.	The sensory tract.

[edit] External links

• Brainstem at UWisc 04NGNC
• BrainMaps at UCDavis Cuneate%20nucleus

v·d·e Brain: rhombencephalon (hindbrain)
Metencephalon/ pons	{| class="navbox collapsible nowraplinks" style="margin:auto; background:white;background:white;"
[[[:Template:Fullurl:Template:]] v]·[[[:Template:Fullurl:Template talk:]] d]·[[[:Template:Fullurl:Template:]] e]
Dorsal/ (tegmentum)	surface: Locus ceruleus Trigeminal lemniscus (Dorsal trigeminal tract, Ventral trigeminal tract) cranial nuclei: GSA: Principal V/Spinal V - VIII-c (Dorsal, Anterior)/VIII-v (Lateral, Superior, Medial, Inferior) - SVE: Motor V - VII - GSE: VI - GVE: VII: Superior salivary nucleus MLF, III, IV and VI (vestibulo-oculomotor fibers, medial vestibulospinal tract) sensory/ascending: Trapezoid body/VIII - Superior olivary nucleus Inferior cerebellar peduncle (Vestibulocerebellar tract) motor/descending: Apneustic center • Pneumotaxic center (Medial parabrachial nucleus) - Lateral parabrachial nucleus
Ventral/ (base)	Middle cerebellar peduncles (Pontocerebellar fibers) - Pontine nuclei motor/descending: Corticospinal tract - Corticobulbar tract - Corticopontine fibers
Raphe/reticular	Reticular formation (Caudal, Oral, Tegmental, Paramedian) • Raphe nuclei (Median)

|- style="white-space:nowrap;background:#ddddff;text-align:right;background-color: LightYellow" ! Myelencephalon/
medulla | colspan="1" style="text-align:left;width:100%;font-size:95%;background:#f7f7f7;" | {| class="navbox collapsible nowraplinks" style="margin:auto; background:white;background:white;" |- style="text-align:center;width:100%;"

!colspan="2" |

|- |- style="white-space:nowrap;background:#ddddff;text-align:right;padding-left:0em;padding-right:0em;background-color: LightYellow"

!

| colspan="1" style="text-align:left;width:100%;font-size:95%;" | surface: Posterior median sulcus - Postero-lateral sulcus - Area postrema

cranial nuclei: GVA: VII,IX,X: Solitary/tract • SVA: Gustatory nucleus • GSE: XII  • GVE: IX,X,XI: Ambiguus • SVE: X: Dorsal • IX: Inferior salivatory nucleus - MLF, III, IV and VI

sensory/ascending: Gracile nucleus • Cuneate nucleus (Accessory cuneate nucleus) • Sensory decussation  • Medial lemniscus

motor/descending: Dorsal respiratory group
|- style="white-space:nowrap;background:#ddddff;text-align:right;padding-left:0em;padding-right:0em;background-color: LightYellow"

!

| colspan="1" style="text-align:left;width:100%;font-size:95%;background:#f7f7f7;" | motor/descending: Ventral respiratory group - Pyramid (Motor decussation) - Inferior olivary nucleus (Olivocerebellar tract, Rubro-olivary tract)
surface: Anterior median fissure - Antero-lateral sulcus - Arcuate nucleus of medulla - Olivary body
|- style="white-space:nowrap;background:#ddddff;text-align:right;padding-left:0em;padding-right:0em;background-color: LightYellow"

!

| colspan="1" style="text-align:left;width:100%;font-size:95%;" | Reticular formation (Gigantocellular, Parvocellular, Ventral, Lateral, Paramedian) • Raphe nuclei (Obscurus, Magnus, Pallidus) |} |}

This page uses content from the English-language version of Wikipedia. The original article was at Cuneate nucleus. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.