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BULBAR - 2 reference results
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Corticobulbar tract
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.

Function

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 runs through the genu of the internal capsule as it passes from the motor cortex down through to the brainstem.

The corticobulbar tract innervates cranial motor nuclei contralaterally with the exception of the upper facial nucleus which are innervated bilaterally (bilateral cortical representation, where in unilateral upper motor neuron lesions (UMNL) the frontalis and orbicularis oculi muscles are spared). Among those nuclei that are bilaterally innervated a slightly stronger connection contralaterally than ipisilaterally is observed.

External links

  • http://thebrain.mcgill.ca/flash/i/i_06/i_06_cl/i_06_cl_mou/i_06_cl_mou.html

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Last updated on Friday July 18, 2008 at 09:35:04 PDT (GMT -0700)
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Westin Bull Bars
Chrome $294 Black $233 Stainless $218 Fast Shipping
stores.got-chrome.com
Grille Guards & Bull Bars
Westin, Romik, T&H, Waag Eurotech Guards, Side Steps
Sponsored Results www.CARiD.com/Grille-Guards
What is the treatment of choice for bulbar urethral strictures which are not an indication for visual internal urethrotomy?.(Uroscan)(Clinical report)
Jul 01, 2008; Byline: Deepak. Dubey, K. Muruganandham Summary In this study the authors have retrospectively analyzed the results for 153...
Read more with a free trial on HighBeam.com »
Reconstruction of the bulbar urethra using dorsal onlay buccal mucosal grafts: New concepts and surgical tricks.
Apr 01, 2006; Byline: Guido. Barbagli, S. De Stefani Buccal mucosa onlay graft urethroplasty represents one of the most widespread methods for...
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New spinal and bulbar muscular atrophy study results reported from University of Copenhagen.(Report)
Mar 11, 2009; We examined the effect of aerobic exercise in patients with spinal and bulbar muscular atrophy (SBMA). SBMA is caused by a defect...
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Bulbar urethroplasty using buccal mucosa grafts placed on the ventral, dorsal or lateral surface of the urethra: Are results affected by the surgical technique?
Apr 01, 2006; Byline: Rajiv. Goyal, Deepak. Dubey, Aneesh. Srivastav Summary Buccal mucosa graft onlay presents one of the most widespread...
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Combined dorsal plus ventral double buccal mucosa graft in bulbar urethral reconstruction.(Uroscan)
Apr 01, 2008; Byline: Arun. Chawla, Sreedhar. Reddy, Joseph. Thomas Summary This is a retrospective study of the use and efficacy of combined...
Read more with a free trial on HighBeam.com »
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