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Topic: Ventral reticular nucleus

    Note: these results are not from the primary (high quality) database.

Regional and Ultrastructural Immunolocalization of Copper-Zinc Superoxide Dismutase in Rat Central Nervous System -- Moreno et al. 45 (12): 1611 -- Journal of Histochemistry and Cytochemistry reticular thalamic nucleus, principal neurons in the corpus ventral and dorsal cochlear nuclei, spinal trigeminal nucleus, Neurons of gigantocellular reticular nucleus display intense cytoplasmic immunopositivity. www.jhc.org /cgi/content/full/45/12/1611   (4821 words)

NEUROSCIENCE : P. Ohara complete publications 14. Ohara, P.T., Sefton, A.J. and Lieberman, A.R. (1980) Mode of termination of afferents from the thalamic reticular nucleus in the dorsal lateral geniculate nucleus of the rat. 16. Ohara, P.T. and Lieberman, A.R. (1985) The thalamic reticular nucleus of the adult rat: experimental anatomical studies. 26. Wang, B-R. and Ohara, P.T. (1993) Convergent projections of trigeminal afferents from the principal nucleus and subnucleus interpolaris upon rat ventral posteromedial thalamic neurons. www.ucsf.edu /neurosc/faculty/neuro_ohara_pub.html   (816 words)

BioMed Central Full text Mapping of neurokinin-like immunoreactivity in the human brainstem However, in the cat cell bodies containing NK were observed in the superior colliculus, the interpeduncular nucleus, the lateral reticular nucleus, and in the nucleus of the solitary tract, as well as in other brainstem localizations, in which we did not observe NK-ir cell bodies in the same brainstem regions of humans. 1A,1B ; 5A,5B), the nucleus of the solitary tract (Figs. By contrast, in humans, we found NK-ir perikarya located in the dorsal motor nucleus of the vagus, in which in the cat no immunoreactive cell bodies were found [ 15 ]. www.biomedcentral.com /1471-2202/4/3   (816 words)

Neurokinin-1 Projection Cells in the Rat Dorsal Horn Receive Synaptic Contacts from Axons That Possess {alpha}2C-Adrenergic Receptors -- Olave and Maxwell 23 (17): 6837 -- Journal of Neuroscience 4v, Fourth ventricle; cu, cuneate nucleus; cc, central canal; XII, hypoglossal nucleus; spV, spinal trigeminal nucleus; ml, medial lemniscus; LRt, lateral reticular nucleus; vsc, ventral spinocerebellar tract; py, pyramidal tract. www.jneurosci.org /cgi/content/full/23/17/6837   (816 words)

text Particular attention has been paid to the ascending pathways arising from the substantia nigra and ventral tegmentum and terminating in the striatum and nucleus accumbens, respectively. In the pigeon, efferent fibers from AVT neurons reach the central gray, pretectal areas, the lateral habenular nucleus, dorsomedial and dorsolateral thalamus as well as the lateral hypothalamus, whereas those from the nigra (TPc) innervate, among others, the central gray, nucleus intercollicularis, reticular formation, dorsal thalamus, lateral hypothalamus and pretectum (25). Both D1 and D2 receptors are detectable at the subtelencephalic level, in particular in the tegmentum of the midbrain (Stewart, Kabai and Csillag, unpublished), although the studies known to us have focused attention on the forebrain (19,28,6,20). bio.univet.hu /kabai/abstracts/metamph/Kabai_metamphetamine.html   (3400 words)

Structure and Function of Cholinergic Pathways in the Cerebral Cortex, Limbic System, Basal Ganglia, and Thalamus of the Human Brain Because the neurons of the reticular nucleus have an inhibitory effect on thalamic relay neurons, the net effect of Ch5 stimulation is to facilitate transthalamic processing by the excitation of relay nuclei and also through a process of disinhibition (64). The density of cholinergic innervation is very high in the striatum, high in the subthalamic nucleus and red nucleus, moderate in the globus pallidus and ventral tegmental area, and low in the pars compacta of the substantia nigra. The highest levels of ChAT axonal staining are found in intralaminar nuclei (except for the parafascicular nucleus), the reuniens nucleus, the anterodorsal nucleus, medially situated patches in the mediodorsal nucleus, the lateral geniculate nucleus, and the reticular nucleus. www.acnp.org /g4/gn401000012/ch012.html   (3400 words)

Virtual Hospital: The Human Brain: Chapter 4: The Brainstem In the ventral part of the central gray is the hypoglossal nucleus, the main source of motor fibers to the tongue. Dorsolateral to the pyramidal tract, the medial accessory olivary nucleus, which is not present at lower levels, has just appeared. The curving internal arcuate fibers pass between the spinal (inferior) nucleus of the trigeminal nerve and the central gray matter. www.vh.org /Providers/Textbooks/BrainAnatomy/Ch4Text/Section08.html   (3400 words)

IX. Neurology. 4a. The Hind-brain or Rhombencephalon. Gray, Henry. 1918. Anatomy of the Human Body. The nucleus of the cochlear nerve consists of: (a) the lateral cochlear nucleus, corresponding to the tuberculum acusticum on the dorso-lateral surface of the inferior peduncle; and (b) the ventral or accessory cochlear nucleus, placed between the two divisions of the nerve, on the ventral aspect of the inferior peduncle. fascialis) is situated deeply in the reticular formation of the pons, on the dorsal aspect of the superior olivary nucleus, and the roots of the nerve derived from it pursue a remarkably tortuous course in the substance of the pons. The fibers of the abducent nerve pass forward through the entire thickness of the pons on the medial side of the superior olivary nucleus, and between the lateral fasciculi of the cerebrospinal fibers, and emerge in the furrow between the lower border of the pons and the pyramid of the medulla oblongata. www.bartleby.com /107/187.html   (10328 words)

Dorlands Medical Dictionary lami, [TA]  parafascicular nucleus of thalamus: one of the smaller reticular nuclei of the dorsal thalamus, situated medial to the centromedian nucleus and ventral to the dorsal medial nucleus. lami, [TA]  paracentral nucleus of thalamus: one of the smaller reticular nuclei of the dorsal thalamus, situated ventrolateral to the dorsal medial nucleus and medial to the central lateral nucleus. nucleus of facial nerve: the nucleus of origin of the motor fibers of the facial nerve, which innervate the muscles of facial expression; the nucleus lies in the ventrolateral part of the lower pons, and its emerging fibers form a complicated loop about the nucleus of the abducens nerve. merckmedicus.com /ppdocs/us/common/dorlands/dorland/dmd-n-024.htm   (10328 words)

Midbrain.html For example, the midbrain ventral tegmentum (A10 DA cell group) provides dopamine to the amygdala, limbic striatum, and the ventral caudate and putamen and is believed to be related to emotion, mood and reward (referred to as the mesocorticolimbic/mesolimbic DA system). The pontine tegmentum and the more dorsal portion of the midbrain tegmentum is also considered part of the reticular formation through which course ascending sensory fibers and descending motor fibers. Spanning the medial and lateral lengths of the brainstem and midbrain is a complex reticulum of richly interconnected cells with long ascending and descending axons, collectively referred to as the reticular activating system, which is concerned with generalized and selective arousal and activation of the neuroaxis. www.brainmind.com /Midbrain.html   (4253 words)

Mediodorsal Thalamic Lesions Impair Trace Eyeblink Conditioning in the Rabbit -- Powell and Churchwell 9 (1): 10 -- Learning & Memory Electrophysiological evidence that the mediodorsal nucleus of the thalamus is a relay between the ventral pallidum and the medial prefrontal cortex in the rat. Lesions of the thalamic reticular nucleus or the basal forebrain impair Pavlovian eyeblink conditioning and attenuate learning-related multiple-unit activity in the mediodorsal nucleus of the thalamus. Lesions of the dorsomedial nucleus of the thalamus, medial prefrontal cortex and pedunculopontine nucleus: Effects on locomotor activity mediated by nucleus accumbens-ventral pallidal circuitry. www.learnmem.org /cgi/content/full/9/1/10   (4253 words)

nanat_0003_text.txt The pallidum projects to the cerebral cortex through [may have appeared on 2002/02] a) The VPL of the thalamus b) The VPM of the thalamus c) The reticular nucleus of the thalamus d) The ventral anterior nucleus of the thalamus e) The DL of the thalamus 47. The fibers of the spinal nucleus and tract of the trigeminal nerve synapse primarily with the [2002/02] a) VPL b) VPM c) Anterior nucleus d) Reticular nucleus e) Centromedian nucleus 52. The nucleus ambiguus is related to the following functional component(s) of the vagal system [may have appeared on 2002/02] a) SVE b) SVE and GVE c) SVA and GSA d) GSA and GSE e) SVA and GSE 53. www.uagmd.com /quizbank/nanat_0003_text.txt   (1837 words)

Degenerative Disorders of the Central Nervous System These lesions were seen as foci of bilateral and symmetrical degeneration in the basal nuclei (caudate nucleus, putamen, and claustrum), midbrain, pons and medulla, in addition to multifocal lesions at the base of sulci in the cerebral cortex and in the gray matter of cerebellar folia in the ventral vermis. Microscopic lesions occurred in internal and external capsules, caudate nucleus and claustrum (sometimes with microscopic cavities in these basal ganglia), optic nerve, and less frequently, the spinal cord where lesions were mainly confined to the ventral horns and adjacent white matter in thoracic cord segments. Bilateral and symmetrical foci of malacia were seen grossly in the nuclei of the cerebellum and brainstem (caudal colliculi, lateral vestibular nuclei, lateral cuneate nuclei, and lateral reticular nuclei) and the gray matter of the spinal cord associated with cervical and lumbosacral intumescences. www.ivis.org /special_books/Braund/braund19/chapter_frm.asp?LA=1   (1837 words)

neuro4.fls A19=* Ballism - caused by a lesion of, or near, the contralateral subthalamic nucleus ^* Parkinson's - substantia nigra pars compacta neuronal cell death ( A5=* Internal segment of globus pallidus and substantia nigra pars reticulata project to centromedian, ventral anterior, and ventral lateral thalamic nuclei, which then project to the pre-central gyrus and frontal lobe. A4=* Striatum project to internal and external globus pallidus segments and project to substantia nigra pars reticulata ^* External globus pallidus project to subthalamic nucleus ^* Subthalamic nucleus project to internal globus pallidus Q5=What are the primary efferent structures of the basal ganglia and their neurotransmitters? www.openwindow.com /ftp/neuro4.fls   (1722 words)

Worldwide Intensivist : the Anatomy of Pain Lateral to the internal medullary lamina (iml) lies the ventral posteromedial nucleus (vpm) and anterior to this is the ventral anterior nucleus (va). Important cell groups are the nucleus gigantocellularis and related nuclei, the lateral reticular nucleus, and a variety of other nuclei. Neuroanatomy of the Pain System and of the Pathways that Modulate Pain. www.anaesthetist.com /icu/pain/pain3.htm   (1722 words)

Rapid Prion Neuroinvasion following Tongue Infection -- Bartz et al. 77 (1): 583 -- The Journal of Virology immunostaining (B) of adjacent brain stem sections containing hypoglossal nucleus (XII), dorsal motor nucleus of the vagus (X), nucleus of the solitary tract (Sol), ventral medullary reticular nucleus (MdV), and raphe obscurus nucleus (ROb) from an HY TME-infected hamster at 6 weeks postinfection. and the nucleus of the solitary tract (44). in the spinal trigeminal nucleus and the nucleus of the solitary jvi.asm.org /cgi/content/full/77/1/583   (5622 words)

Intramedullary Projections of the Rostral Nucleus of the Solitary Tract in the Rat: Gustatory Influences on Autonomic Output -- Streefland and Jansen 24 (6): 655 -- Chemical Senses ventral to the rc and rl subdivisions of the nucleus. Herbert, H., Moga, M.M. and Saper, C.B. Connections of the parabrachial nucleus with the nucleus of the solitary tract and the medullary reticular formation in the rat. input from the rostral nucleus of the solitary tract. chemse.oxfordjournals.org /cgi/content/full/24/6/655   (4186 words)

Neuronal Premotor Networks Involved in Eyelid Responses: Retrograde Transneuronal Tracing with Rabies Virus from the Orbicularis Oculi Muscle in the Rat -- Morcuende et al. 22 (20): 8808 -- Journal of Neuroscience in the nucleus of the trapezoid body and the ventral periolivary that rabies-immunolabeled neurons in the oculomotor nucleus are nucleus, and, to a lesser degree, in the rostral periolivary nucleus www.jneurosci.org /cgi/content/full/22/20/8808   (6870 words)

na_2002_text.txt The fibers of the spinal nucleus and the trigeminal nerve synapse primarily with a) VPL b) VPM c) Anterior nucleus d) Reticular nucleus e) Centromedian nucleus 52. The nucleus dosalis of Clarke is located in a) The anterior horn of T1 - L2 b) The base of the posterior horn of T1 - L2 c) The base of the posterior horn of T1 - L2 d) The lateral horn e) The ventral white matter 93. From the VPL nucleus of the thalamus, fibers of the spino thalamic tract reach the a) Precentral gyrus b) Superior frontal gyrus c) Middle frontal gyrus d) Postcentral gyrus e) Superior temporal gyrus 134. www.uagmd.com /quizbank/na_2002_text.txt   (6870 words)

Curriculum2000 templatee: In the cerebral white matter (corona radiata) and internal capsule, the corticospinal fibers are intermingled with corticostriate (cortex to basal ganglia), corticothalamic (cortex to thalamus), corticorubral (cortex to red nucleus), corticopontine (cortex to nuclei of the pons), cortico-olivary (cortex to olivary nucleus) and corticoreticular (cortex to reticular formation) fibers. Most of the fibers end in the nucleus reticularis gigantocellularis of the medulla and the nucleus reticularis pontis oralis of the pons, the two motor nuclei that give rise to the reticulospinal tracts. Describe the clinical signs that would follow: (1) a lesion to the red nucleus, (2) transection of the brainstem rostral to the vestibular nuclei and caudal to the red nuclei, and (3) a lesion to the tectum. www.med.uiuc.edu /m1/neurosci/Web_Neuro_2001/protected/curriculum/Unit_09_01_Motor_Systems/Motor_Pathways.htm   (4198 words)

CHAPTER NINE Ascennding projections from the vestibular nucleus include the cerebellum, the reticular formation the medial longitudinal fasciculus (which functions to communicate between the occular cranial nerve and the vestibular nerve) and motor nuclei of other cranial nerves. Craninal nerve 5, the spinal trigeminal nucleus, The afferents are somatiopically arranged with the madibular fibers most dorsal, the maxillary fibers in between, and the opthalmic fibers most ventral. Tactile information from the head is processed in the main sensory nucleus as well as in the spinal trigeminal nucleus, so leisions in the medulla affecting the spinal tract and nucleus leave the sense of touch relatively intact. www.unc.edu /~ears/classes/neuro/studyguides/sgcrainalnerves.html   (2586 words)

ua15.wbc The intermediate and ventral acoustic stria are second order neurons (second neuron from the receptor site in the organ of Corti) from the ventral cochlear nucleus. The tegmentum is phylogentically older and consists largely of the reticular formation. No, the answer is D. This lesion affects both the corticospinal pathway and the C.N. Since the right lateral rectus is involved, the lesion is in the right basis pontis and interrupts the abducens nerve fibers passing through. kumc.edu /research/medicine/pharmacology/CAI/webCAI/anatomy/ua15.wbc   (2305 words)

CHEMICAL NEUROANATOMY Substantia nigra and ventral paramedian tegmental nucleus are the two largest dopaminergic nuclei of the midbrain. Midbrain - forebrain cholinergic pathway - interpeduncular region (highest contra) + reticular formation, nucleus cuneiformis, to thalamus, hypothalamus, striatum and limbic structures. Alzheimer's disease and parkinsonism - degenerate locus ceruleus, substantia nigra and nucleus basalis. manidr.enmail.com /neurotransmitters.htm   (2305 words)

HyperBrain Glossary Term Input to the olive is from the central tegmental tract, rostral and caudal brain stem, and reticular nuclei. Gray matter in ventral lateral medulla whose axons cross the midline and enter the inferior cerebellar peduncle. They terminate as climbing fibers on Purkinje cells throughout the cerebellum. www-medlib.med.utah.edu /kw/hyperbrain/glossary/i021.htm   (2305 words)

Amygdala Article, Amygdala Information It sends outputs to the hypothalamus for activation ofthe sympathetic nervous system, the reticular nucleus for increasedreflexes, the trigeminal nerve and facial nerve for facial expressions offear, and the ventral tegmental area, locus ceruleus, and laterodorsal tegmental nucleus for activation of dopamine, acetylcholine and epinephrine. The central nucleus is the main output for the basolateral complex and is involved inemotional arousal. Key among these nuclei are thebasolateral complex, the central nucleus, and the medial amygdala. www.anoca.org /nucleus/fear/amygdala.html   (359 words)

Intramedullary Projections of the Rostral Nucleus of the Solitary Tract in the Rat: Gustatory Influences on Autonomic Output -- Streefland and Jansen 24 (6): 655 -- Chemical Senses Figure 4 A series (A–C) of horizontal sections which illustrates the efferent connections within the brainstem of the rostral nucleus of the solitary tract and part (30%) of the ventrally located parvocellular reticular formation. ventral to the rc and rl subdivisions of the nucleus. Figure 2 A diagram of a horizontal and a sagittal section, showing the location of the injection sites in and around the rostral nucleus of the solitary tract. chemse.oupjournals.org /cgi/content/full/24/6/655   (359 words)

nanat_0002_text.txt Which tract is NOT associated with the Lissauer's fasciculus a) Lateral spinothalamic tract b) Corticoreticular tract c) Cuneocerebellar tract d) Anterior spinocerebellar tract e) Ventral spinothalamic tract 8. Which of the following tracts that belong to the ventromedial brainstem system does NOT facilitate extensor muscles a) Tectospinal medial axons b) Medial pontine reticular tract c) Medial vestibulospinal tract d) Ventral corticospinal tract e) All the above facilitate extensor muscles and are part of the ventromedial branstem system 27. The second relay of the trigeminal thalamic tract that carries pain and temperature is which of the following nuclei a) 1st trigeminal nuclei b) 2nd trigeminal nuclei c) 3rd trigeminal nuclei d) Red nucleus e) Nucleus ambiguous 21. www.uagmd.com /quizbank/nanat_0002_text.txt   (359 words)

ICP monitors It stays just lateral to the medial lemniscus in the dorsal pons, and behind it in the medulla to reach the ventral posterior nucleus of the thalamus, mainly in VPL (VPM is trigeminothalamic). • From there, axons join the decussating internal arcuate fibers to the medial lemniscus which continues close to midline in medulla, turns 90 degrees and continues to the Ventral Posterior nucleus of the thalamus. There may be a few additionl synapses along the way, especially in the nucleus of the lateral lemniscus, and in the inferior olivary nucleus. www.ucsf.edu /nreview/02.1-Anatomy-Brain&SC/SummaryofSystems.html   (1648 words)

The Austringer » 2005 » February Contralaterally, these connections of the cochlear nucleus are to the medial trapezoidal body, medial superior olive, medial pre-olivary nucleus, and dorsal and ventral nuclei of the lateral lemniscus. Ipsilaterally, these connections are to the medial superior olive, the lateral superior olive (absent or reduced in dolphins and bats), the lateral nucleus of the trapezoid body, lateral pre-olivary nucleus, and dorsal and ventral nucleus of lateral lemniscus. The ipsilateral connections stem either from the S-shaped olivary segment or the pre-olivary nuclei for one bundle, and the reticular formation of the pons and medulla for the other. austringer.net /wp/?m=200502   (6318 words)

Reticular Formation In the lower medulla, the RF lies ventral to the spinal canal, appears continuous with the gracilis and cuneate nuclei dorsally, and extends laterally almost to the spinal nuclei of V. In upper medulla, the RF lies between central gray (dorsal), and inf olive (ventral), and extends laterally to the trigeminal spinal nucleus. In the midbrain, the RF reaches its greatest extent and extends from the periaqueductal gray matter to reach the substantia nigra and completely surround the red nucleus. Caudally, the reticular formation blends imperceptibly into lamina VII of the spinal gray and therefore some say that it extends from the sacral part of the spinal cord to the thalamus. www.ucsf.edu /nreview/02.1-Anatomy-Brain&SC/ReticularForm.html   (826 words)

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