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Topic: Mesencephalic duct


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In the News (Wed 8 Oct 08)

  
  IX. Neurology. 5e. The Trigeminal Nerve. Gray, Henry. 1918. Anatomy of the Human Body.
The inferior or chief nucleus is situated in the upper part of the pons, close to its dorsal surface, and along the line of the lateral margin of the rhomboid fossa.
The fibers from the superior nucleus constitute the mesencephalic root: they descend through the mid-brain, and, entering the pons, join with the fibers from the lower nucleus, and the motor root, thus formed, passes forward through the pons to its point of emergence.
The branch of communication from the lingual to the forepart of the ganglion is by some regarded as a branch of distribution, through which filaments pass from the ganglion to the lingual nerve, and by it are conveyed to the sublingual gland and the tongue.
www.bartleby.com /107/200.html   (5634 words)

  
 GLOSSARY OF KEY TERMS
canaliculi: Microscopic passageways between cells; bile canaliculi carry bile to bile ducts in the liver; in bone, canaliculi permit the diffusion of nutrients and wastes to and from osteocytes.
common bile duct: The duct formed by the union of the cystic duct from the gallbladder and the bile ducts from the liver; terminates at the duodenal ampulla, where it meets the pancreatic duct.
cystic duct: A duct that carries bile between the gallbladder and the common bile duct.
cwx.prenhall.com /bookbind/pubbooks/martinidemo/medialib/glossary/c.html   (3718 words)

  
 Central nervous system - Wikipedia, the free encyclopedia
The rhombencephalon gives rise to the pons, the cerebellum and the medulla oblongata, its cavity becomes the fourth ventricle.
The mesencephalon gives rise to the tectum, pretectum, cerebral peduncle and its cavity develops into the mesencephalic duct or cerebral aqueduct.
The diencephalon gives rise to the subthalamus, hypothalamus, thalamus and epithalamus, its cavity to the third ventricle.
en.wikipedia.org /wiki/Central_nervous_system   (501 words)

  
 PAX2 - Paired box protein Pax-2   (Site not responding. Last check: 2007-09-19)
However, GDNF replacement in organ culture is not sufficient to stimulate ureteric bud outgrowth from Pax2 mutant nephric ducts, indicating additional defects in the nephric duct epithelium of Pax2 mutants.
Removal of the surface ectoderm resulted in decreased levels of Sim-1 and Pax-2 mRNA expression in mesenchymal nephric duct progenitors, and caused inhibition of nephric duct formation and subsequent kidney development.
Analysis of kidney development in Hs2st mutants reveals that the gene is not required for two early events-ureteric bud outgrowth from the Wolffian duct and initial induction of Pax-2 expression in the metanephric mesenchyme.
www.pdg.cnb.uam.es /UniPub/iHOP/gg/90830.html   (5214 words)

  
 Mesencephalic duct - Encyclopedia, History, Geography and Biography   (Site not responding. Last check: 2007-09-19)
Mesencephalic duct - Encyclopedia, History, Geography and Biography
The mesencephalic duct, also known as the aqueduct of Silvius or the cerebral aqueduct, contains cerebrospinal fluid (CSF), is within the mesencephalon (or midbrain) and connects the third ventricle in the thalamus (or diencephalon) to the fourth ventricle, which is between the pons and cerebellum.
A blockage in this duct is a cause of hydrocephalus.
www.arikah.net /encyclopedia/Cerebral_aqueduct   (109 words)

  
 tract   (Site not responding. Last check: 2007-09-19)
The bundle contains fibers from the mesencephalic tegmentum and regions surrounding the central gray substance descending to the olivary nucleus; it also includes numerous fibers ascending from the medullary, pontine, and mesencephalic reticular formation to the thalamus and subthalamus region.
of trigeminal nerve located alongside the central substance of the midbrain and composed of primary sensory fibers, the cells of origin of which compose the mesencephalic nucleus of the trigeminus.
a fiber bundle arising in the superior colliculus, passing caudoventrally on the same side along the medial side of the lateral lemniscus, issuing fibers terminating in the lateral zone of the mesencephalic tegmentum, and ending in the lateral part of the gray matter of the ventral part of the pons.
www.painhealth.com /word.asp?q=43155   (2394 words)

  
 lamina
of semicircular duct basal membrane of semicircular duct
of mesencephalic tectum the roofplate of the mesencephalon formed by the quadrigeminal bodies.
of semicircular duct the meshwork of connective tissue fibers between the semicircular duct and the bony semicircular canal; it encloses the perilymph in its spaces.
www.painhealth.com /word.asp?q=23144   (1553 words)

  
 Chapter 17 - Activities Involving the Cerebral Hemispheres
It is known that a lesion of the median raphe nuclei of the brain stem produces permanent insomnia that is relieved by administration of serotonin.
A lesion of the mesencephalic tegmentum, on the other hand, produces an animal that is never awake.
The region from which this kind of arousal is produced is called the ascending reticular activating system and extends throughout the reticular areas of the medulla and pons and upward into the hypothalamus, subthalamus, and ventromedial thalamus.
www.unmc.edu /Physiology/Mann/mann17.html   (8581 words)

  
 [No title]
mesencephalic locomotor region A region of the reticular formation of the midbrain whose stimulation causes alternating movements of the limbs normally seen during locomotion.
persistent Müllerian duct syndrome/persistent Mullerian duct syndrome A condition caused by a congenital lack of functioning anti-Müllerian hormone receptors; in a male, causes development of both male and female internal sex organs.
oxytocin A hormone secreted by the posterior pituitary gland; causes contraction of the smooth muscle of the milk ducts, the uterus, and the male ejaculatory system; also serves as a neurotransmitter in the brain.
www.abacon.com /carlsonpob/Terms.dat   (16814 words)

  
 Mesencephalic duct - Encyclopedia Glossary Meaning Explanation Mesencephalic duct
Mesencephalic duct - Encyclopedia Glossary Meaning Explanation Mesencephalic duct.
Here you will find more informations about Mesencephalic duct.
The orginal Mesencephalic duct article can be editet
www.encyclopedia-glossary.com /en/Mesencephalic-duct.html   (131 words)

  
 MVDL Minnesota Veterinary Diagnostic Laboratory   (Site not responding. Last check: 2007-09-19)
The lateral ventricles, the third ventricle, the mesencephalic duct and fourth ventricle were moderately dilated.
The spinal cord was soft in the C1 and C2 segment and there was a cavitu, approximately 2 mm in diameter in the area of a gray matter horn in the C2 segment.
Slide F: Mesencephalon, dilation of the mesencephalic duct.
www.academic-server.cvm.umn.edu /radiology/cases/case15/necropsy_report.html   (353 words)

  
 Klf6 - Core promoter element-binding protein
In addition, the HNF-1 gene was assigned by somatic cell hybrids and recombinant inbred strain mapping to mouse chromosome 5 near Bcd-1 and to human chromosome 12 region q22-qter, revealing a homologous chromosome region in these two species.
Development of mesencephalic and diencephalic regions was differentially regulated in a dose-dependent manner by the cooperation between Otx1 and Otx2 under FM and FM2 enhancers: the more caudal the structure the higher the OTX dose requirement.
The calcium-activated ATPase activities of FM1, FM2, FM3 and IM at pH 9.2 were each much higher than that of SM, and this difference is reflected in the histochemical profile of muscle, as demonstrated with the myofibrillar ATPase reaction at alkaline pH.
www.ihop-net.org /UniPub/iHOP/gg/126141.html   (890 words)

  
 Cell Transplantation, Vol
The results are placed in the context of the important interaction between the converging glutamatergic corticostriatal and the DAergic nigrostriatal pathways in controlling the functional output of the basal ganglia in Parkinson's disease and in experimental models of DA deficiency.
The rat mesencephalic neural plate at the early somite stage (embryonic day 10.5) together with the adjacent ventral mesenchymal tissues was dissected out under the microscope and immediately implanted into the ischemic rat striatum.
It was suggested that grafted CNS stem cells with mesenchyme may survive and differentiate into mature CNS tissue within the adult ischemic rat brain, constructing vessels in and around the grafts, and may therefore have the potential to be effective in the recovery of the cognitive function of the rat model.
www.cognizantcommunication.com /filecabinet/Cell/ctabs.htm   (16168 words)

  
 Anatomy 350a at UWO (Functional Neuroanatomy)
When the duct moves, the endolymph doesn't, so the sensory hairs trail behind, in the same way that a fishing line is pulled by a boat moving through still water.
The semicircular ducts are in planes mutually at right-angles (Click here for a diagram), so rotation of the head in any direction will always induce some relative flow in at least one duct.
Their unipolar cell bodies constitute the mesencephalic trigeminal nucleus, which is lateral to the periaqueductal grey and extends rostrally to the level of the superior colliculus.
instruct.uwo.ca /anatomy/530/350notes.htm   (14121 words)

  
 SST - Somatostatin precursor
Neither somatostatin nor substance P inhibited the VIP response in isolated bile duct units.
These results suggest that somatostatin may counteract the suppressive effect of CRF on food intake within the central nervous system.
On striatal and mesencephalic glial membranes the somatostatin inhibitory effect was observed only in the presence of VIP.
www.pdg.cnb.uam.es /UniPub/iHOP/gg/92415.html   (4565 words)

  
 NIDA - The Intersection of Stress, Drug Abuse, and Development -Abstracts
Studies of drug self-administration in laboratory animals have shown that both physical and psychological stressors facilitate the acquisition of drug self-administration, probably by increasing the reinforcing efficacy of drugs of abuse.
The adrenal hormones, glucocorticoids, which increase the sensitivity of mesencephalic dopaminergic neurons to drugs, seem to be one of the biological substrates of the effects of stress on the propensity to develop drug-intake.
It is apparent that an increased secretion of glucocorticoids or higher sensitivity to the effects of this hormone, either naturally present in certain individuals or induced by stress in others, increases the vulnerability to develop drug intake, possibly through an enhancement of the activity of mesencephalic dopaminergic neurons.
www.nida.nih.gov /MeetSum/stressabstracts.html   (11550 words)

  
 Hypothalamic regulation of pancreatic secretion is mediated by central cholinergic pathways in the rat -- Li et al. 552 ...
One end of the tubing (PE-10 or PE-50, Clay-Adams, Becton, Dickinson and Company, Sparks, MD, USA) was inserted into the common bile-pancreatic duct, and the other end was placed in the duodenum through a cannula (PE 60 or PE 190) fixed in the housing.
In one rat, the injection sites were located in the mesencephalic nucleus and in the MBPN (Fig.
Mimetic responses to gustatory stimuli in chronic thalamic and chronic decerebrate rats.
jp.physoc.org /cgi/content/full/552/2/571   (10102 words)

  
 ct10abs1
In the present study, we demonstrate that exposure of embryonic ventral mesencephalic cells to DADLE (0.01 g/ml), prior to intrastriatal transplantation, enhanced functional recovery and graft survival in 6-hydroxydopamine-induced hemiparkinsonian rats.
The classical main duct isolation of hDC by explant (A1), or enzymatic digestion (A2), was compared with two indirect methods: from 3D cultured human islet/duct-enriched fractions (B) and dedifferentiated exocrine fractions (C).
Method B: embedding islet/duct rich fraction in 3D collagen gels expands the cytokeratin 19 (CK19)-positive ductal component in the form of ductal cysts, as we described previously; monolayers derived from digested cysts were 80% ductal (CK19).
www.cognizantcommunication.com /filecabinet/Cell/ct10abs1.html   (3290 words)

  
 Bipolar Disorder and Somatostatin Receptor 5 -- Neurotransmitter.net
The predominance of sstr5-like in other brain areas is confirmed by the high quantities of this subtype in mesencephalic areas such as the torus longitudinalis (TLo).
With an in vitro model using enclosed intrahepatic bile duct units (IBDUs) isolated from wild-type and somatostatin receptor (SSTR) subtype 2 knockout mice, we tested the effects of somatostatin, secretin, and a selective SSTR2 agonist (L-779976) on fluid movement across the bile duct epithelial cell layer.
Both are expressed primarily in collecting ducts, despite clear evidence that somatostatin also can bind to proximal tubules.
www.neurotransmitter.net /sstr5.html   (17299 words)

  
 Lupus bei eLexi - das Onlinelexikon   (Site not responding. Last check: 2007-09-19)
Metallate is the name given to a metal in an ionic complex.
The mesencephalic duct, also known as the Aqueduct of Silvius or the cerebral duct, contains cerebrospinal fluid (CSF), is within the mesencephalon (or midbrain) and connects the third ventricle in
Mean Girls is a 2004 film written by and costarring Tina Fey.
www.elexi.de /en/l/lu/lupus.html   (437 words)

  
 [No title]
Widmer, CG, JA Morris-Wiman, JC Calhoun (1998) Development of trigeminal mesencephalic and motor nuclei in relation to masseter muscle innervation in mice.
Curtis, LM, LC Garg, KE Rarey (1997) Ca2+-ATPases in the cochlear duct.
Wang, DS, C Sumners, P Posner, CH Gelband (1997) A-type K+ current in neurons cultured from neonatal rat hypothalamus and brain stem: Modulation by angiotensin II.
www.mbi.ufl.edu /whatsnew/veryold.html   (9450 words)

  
 Nitric Oxide Inhibits Apoptosis Downstream of Cytochrome c Release by Nitrosylating Caspase 9 -- Török et al. ...
originating from the bile duct epithelial cells or cholangiocytes
ducts predispose patients to the development of cholangiocarcinoma,
Caspase-Dependent and -Independent Cell Death Pathways in Primary Cultures of Mesencephalic Dopaminergic Neurons after Neurotoxin Treatment
cancerres.aacrjournals.org /cgi/content/full/62/6/1648   (4384 words)

  
 Trigeminohypothalamic and Reticulohypothalamic Tract Neurons in the Upper Cervical Spinal Cord and Caudal Medulla of ...
Note that 1 mm rostral to point a, the axon could not be activated by a current of 500 µA delivered in 128 locations.
cp, cerebral peduncle; DPME, deep mesencephalic nucleus; ml, medial lemniscus; MTT, mammillothalamic tract; OC, optic chiasm; PC, posterior commissure; PO, preoptic area or posterior thalamus; SNc, substantia nigra pars compacta; SNr, substantia nigra pars reticulata; SON, supraoptic nucleus; Stn, subthalamic nucleus; VBC, ventrobasal complex; 3V, 3rd ventricle.
Example of a neuron that was antidromically activated from the contralateral and ipsilateral hypothalamus and the branches that emanated from the parent axon.
jn.physiology.org /cgi/content/full/84/4/2078   (9992 words)

  
 Efficient generation of neural stem cell-like cells from adult human bone marrow stromal cells -- Hermann et al. 117 ...
Carvey, P. M., Ling, Z. D., Sortwell, C. E., Pitzer, M. R., McGuire, S. Storch, A. and Collier, T. A clonal line of mesencephalic progenitor cells converted to dopamine neurons by hematopoietic cytokines: a source of cells for transplantation in Parkinson's disease.
Cattaneo, E. and McKay, R. Proliferation and differentiation of neuronal stem cells regulated by nerve growth factor.
Storch, A., Lester, H. A., Boehm, B. and Schwarz, J. Functional characterization of dopaminergic neurons derived from rodent mesencephalic progenitor cells.
jcs.biologists.org /cgi/content/full/117/19/4411   (6035 words)

  
 Mesencephalic Duct   (Site not responding. Last check: 2007-09-19)
Snap-together ducting Galv or SS - Easy & Fast Delivery
Bid on auctions or use Buy it Now to purchase items from customer-rated sellers.
Find mesencephalic duct at one of the best sites the Internet has to offer!
digiartistdomain.com /mesencephalic-duct.html   (207 words)

  
 [No title]   (Site not responding. Last check: 2007-09-19)
Thus, visceral mesoderm and not splanchnic mesoderm, such as MSC, derived progeny are transferred with the infused marrow.
Even more surprising are the reports demonstrating both in rodents and humans that hepatic epithelial cells and biliary duct epithelial cells are derived from the donor marrow (Petersen, Science 284: 1168-1170,1999; Theise, Hepatology 31: 235-40,2000; Theise, Hepatology 32: 11-6,2000).
Likewise, three groups have shown that neural stem cells can differentiate into hemopoietic cells.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/11011.010215&ELEMENT_SET=DECL   (10026 words)

  
 Mucin gene expression in Barrett's oesophagus: an in situ hybridisation and immunohistochemical study -- Arul et al. 47 ...
MUC4 was also found in duct epithelial cells but not in the secretory
Mesencephalic dopamine neurons regulate the expression of neuropeptide mRNAs in the rat forebrain.
Toribara NW, Roberton AM, Ho SB, et al.
gut.bmjjournals.com /cgi/content/full/47/6/753   (4429 words)

  
 JPET -- Table of Contents (308 [3])
The Caspase Inhibitor IDN-6556 Attenuates Hepatic Injury and Fibrosis in the Bile Duct Ligated Mouse
Tongguang Wang, Bin Liu, Wei Zhang, Belinda Wilson, and Jau-Shyong Hong
Andrographolide Reduces Inflammation-Mediated Dopaminergic Neurodegeneration in Mesencephalic Neuron-Glia Cultures by Inhibiting Microglial Activation
jpet.aspetjournals.org /content/vol308/issue3   (1551 words)

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