Changes: Corticobulbar tract

Revision as of 21:58, 1 June 2007

Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Neuroscience · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology (Index, Outline)

Brain: Corticobulbar tract

Components and location of the corticobulbar tract.
[[Image:\|250px\|center\|]]

Latin	tractus corticonuclearis
Gray's	subject #
Part of
Components
Artery
Vein
BrainInfo/UW	ancil-371
MeSH	[1]

The corticobulbar (or corticonuclear) tract is a white matter pathway connecting the cerebral cortex to the brainstem (the term "bulbar" referring to the brainstem).

The 'bulb' is an archaic term for the medulla oblongata. In clinical usage, it includes the pons as well.

The muscles of the face, head and neck are controlled by the corticobulbar system, which terminates on motor neurons within brainstem motor nuclei. This is in contrast to the corticospinal tract, which connects the cerebral cortex to spinal motor neurons, and controls movement of the torso, upper and lower limbs.

The corticobulbar tract innervates cranial motor nuclei bilaterally with the exception of the lower facial nucleus which is innervated contralaterally. Among those nuclei that are bilaterally innervated a slightly stronger connection contralaterally than ipisilaterally is observed.

External links

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@@ Line 1: / Line 1: @@
 {{BioPsy}}
+{{Infobox Brain|
-The '''corticobulbar''' (or '''corticonuclear''') '''tract''' is a [[white matter]] pathway connecting the [[cerebral cortex]] to the [[brainstem]] (the term "bulbar" referring to the brainstem). It is involved in involuntary maintenance of body [[posture]]
+  Name            = {{PAGENAME}} |
+  Latin           = tractus corticonuclearis |
+  GraySubject     = |
+  GrayPage        = |
+  Image           = Brain bulbar region.PNG |
+  Caption         = Components and location of the corticobulbar tract. |
+  Image2          = |
+  Caption2        = |
+  IsPartOf        = |
+  Components      = |
+  Artery          = |
+  Vein            = |
+  BrainInfoType   = ancil |
+  BrainInfoNumber = 371 |
+  MeshName        = |
+  MeshNumber      = |
+  DorlandsPre     = t_15 |
+  DorlandsSuf     = 12816062  |
+}}
+The '''corticobulbar''' (or '''corticonuclear''') '''tract''' is a [[white matter]] pathway connecting the [[cerebral cortex]] to the [[brainstem]] (the term "bulbar" referring to the brainstem).
+The 'bulb' is an archaic term for the medulla oblongata. In clinical usage, it includes the pons as well.
-The 'bulb' is an archaic term for the [[medulla oblongata]]. In clinical usage, it includes the [[pons]] as well.
 The muscles of the face, head and neck are controlled by the corticobulbar system, which terminates on [[motor neuron]]s within brainstem motor [[cranial nerve nuclei|nuclei]]. This is in contrast to the [[corticospinal tract]], which connects the cerebral cortex to spinal motor neurons, and controls movement of the torso, upper and lower limbs.
+The corticobulbar tract innervates cranial motor nuclei bilaterally with the exception of the lower facial nucleus which is innervated contralaterally.  Among those nuclei that are bilaterally innervated a slightly stronger connection contralaterally than ipisilaterally is observed.
 ==External links==
-* {{BrainInfo|ancil|371}}
+* {{BrainstemWisconsin|07CNXII}}
+* http://thebrain.mcgill.ca/flash/i/i_06/i_06_cl/i_06_cl_mou/i_06_cl_mou.html
+{{Mesencephalon}}
 [[Category:Central nervous system pathways]]
+{{enWP|Corticobulbar tract}}
-[[Category:Cerebral cortex]]
-[[Category:Brainstem]]
-[[Category:Posture]]