• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Excitatory and Inhibitory Vestibular Pathways to the Extraocular
Excitatory and Inhibitory Vestibular Pathways to the Extraocular

... Graf, Werner, Robert Spencer, Harriet Baker, and Robert Baker. Excitatory and inhibitory vestibular pathways to the extraocular motor nuclei in goldfish. J. Neurophysiol. 77: 2765–2779, 1997. Electrophysiological, ultrastructural, and immunohistochemical techniques were utilized to describe the exci ...
Specificity and Plasticity of Thalamocortical Connections in Sema6A
Specificity and Plasticity of Thalamocortical Connections in Sema6A

... telencephalon largely determines their final targeting within the cortex [16–20]. For example, in mutants in the transcription factor Ebf1 or in the Dlx1/Dlx2 double mutants, a subset of thalamic axons is misrouted ventrally, resulting in a caudal shift of the remaining axons within the ventral telen ...
Lateral Connectivity and Contextual Interactions in Macaque
Lateral Connectivity and Contextual Interactions in Macaque

... contour integration in primary visual cortex (V1): intrinsic horizontal connections and feedback from higher cortical areas. To distinguish between these, we combined functional mapping with a new technique for labeling axons, a recombinant adenovirus bearing the gene for green fluorescent protein ( ...
Chapter 02: Biopsychology, Neuroscience, and Human Nature
Chapter 02: Biopsychology, Neuroscience, and Human Nature

... c. Some nerve cells are pruned away during the first few years of life. d. Our brain can generate new nerve cells. e. All of the above are correct. Difficulty: 3 Page Reference: 42 Topic: Introduction Skill: Factual Objective: 2.1 Answer: e. All of the above are correct. 2. Which of the following is ...
A local circuit approach to understanding integration of
A local circuit approach to understanding integration of

... response of a low-contrast center stimulus, but the same surround stimulus suppresses responses when the center stimulus is of high contrast. Both facilitation and suppression effects tend to be strongest for iso-orientation surrounds. (a) Typical data from a cell in cat V1 obtained by Toth et al. ( ...
superior Medullary Velum
superior Medullary Velum

... interpeduncular fossa, cerebral peduncle, midbrain, cerebellar cortex, inferior colliculus, lingula and vermis is reported to be from the vermian artery originating from the posterior cerebral artery (25). We did not study the vascular anatomy and only fiber dissection and immunohistochemical analys ...
A Patient`s Guide to Lumbar Spinal Stenosis
A Patient`s Guide to Lumbar Spinal Stenosis

... Congenital stenosis: Some people are born with (congenital) a spinal canal that is narrower than normal. They may not feel problems early in life. However, having a narrow spinal canal puts them at risk for stenosis. Even a minor back injury can cause pressure against the spinal cord. People born wi ...
Sample
Sample

... c. Some nerve cells are pruned away during the first few years of life. d. Our brain can generate new nerve cells. e. All of the above are correct. Difficulty: 3 Page Reference: 42 Topic: Introduction Skill: Factual Objective: 2.1 Answer: e. All of the above are correct. 2. Which of the following is ...
Chapter 02: Biopsychology, Neuroscience, and Human Nature
Chapter 02: Biopsychology, Neuroscience, and Human Nature

... c. Some nerve cells are pruned away during the first few years of life. d. Our brain can generate new nerve cells. e. All of the above are correct. Difficulty: 3 Page Reference: 42 Topic: Introduction Skill: Factual Objective: 2.1 Answer: e. All of the above are correct. 2. Which of the following is ...
Differential Spatial Organization of Otolith Signals in Frog Vestibular
Differential Spatial Organization of Otolith Signals in Frog Vestibular

... conserved positions along the underlying rhombomeric scaffold (Straka et al. 2001). Thus it is possible that 2° canal and 2° otolith neurons of all types are segmentally organized (Baker 1998; Straka et al. 2001; Suwa et al. 1999). Although rhombomeres generally are evident only during embryonic sta ...
Chapter 9 The Nervous System
Chapter 9 The Nervous System

... – Support cells, bringing the cells of nervous tissue together structurally and functionally – Three main types of connective tissue cells of the CNS • Astrocytes—star-shaped cells that anchor small blood vessels to neurons • Microglia—small cells that move in inflamed brain tissue carrying on phago ...
the-senses-of-smell-and-taste
the-senses-of-smell-and-taste

... • Starts from the ear drum and extends to the third ossicle. • Contains: Tympanic membrane, ear drum, Malleus (hammer), anvil (incus), stirrups (stapes) ...
local connectivity between neurons of the rat globus pallidus
local connectivity between neurons of the rat globus pallidus

... demonstrated the presence of local axon collaterals arising from neurons of the GP (Iwahori and Mizuno, 1981; Francois et al., 1984; Millhouse, 1986). Similarly, intracellular labelling, juxtacellular labelling, single-axon tracing studies (Park et al., 1982; Kita and Kitai, 1994; Bevan et al., 1998 ...
Optimal Sizes of Dendritic and Axonal Arbors
Optimal Sizes of Dendritic and Axonal Arbors

... Quantitative comparison is complicated because the projection is not strictly twodimensional: Purkinje dendrites stacked next to each other add up to a significant third dimension. Naively, given that the dendritic arbor size is about 400ILm Eq.4 predicts axonal arbor of about 7 ILm. This is close t ...
Heterotopic Transcallosal Projections Are Present throughout the
Heterotopic Transcallosal Projections Are Present throughout the

... techniques—has been performed that allows us to compare the organization of transcallosal connections in different functional regions of the mouse cortex including the primary motor and somatosensory cortices. Such a systematic analysis of inter-hemispheric connectivity is important as defects in th ...
Fine-scale specificity of cortical networks depends on inhibitory cell
Fine-scale specificity of cortical networks depends on inhibitory cell

... neurons, differential interference contrast (DIC) optics were used to target recordings to one pyramidal neuron and one inhibitory interneuron (Fig. 1a,b). Inhibitory neurons were classified as either fast-spiking or adapting on the basis of their intrinsic firing properties in response to intracell ...
Full Article
Full Article

... First, after transection, the corticospinal tract of the rat collateralizes abundantly into new regions of the dorsal horn and intermediate zone (Fouad et al., 2001). Second, sprouting corticospinal tract axons (CST) make new connections with somatic interneurons above incomplete spinal lesions. The ...
Complete nervous system 11
Complete nervous system 11

... CopyrightThe McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
PDF+Links
PDF+Links

... 1996; Castel-Barthe et al., 1996), suggesting that age-related pathological brain dysfunction might be ameliorated by treatment with neurotrophic factor. Most of earlier studies usually estimated degenerative or atrophic changes in morphology of the cholinergic neurons. However, recently attention h ...
Chapter 9 The Nervous System
Chapter 9 The Nervous System

... – Support cells, bringing the cells of nervous tissue together structurally and functionally – Three main types of connective tissue cells of the CNS • Astrocytes—star-shaped cells that anchor small blood vessels to neurons • Microglia—small cells that move in inflamed brain tissue carrying on phago ...
AANEM Glossary of Terms in Neuromuscular
AANEM Glossary of Terms in Neuromuscular

... follows the M wave, evoked consistently from a muscle by submaximal electric stimuli and frequently abolished by supramaximal stimuli. Its amplitude is similar to that of an F wave, but the latency is more constant. Usually occurs before the F wave, but may occur afterwards. Thought to be due to ext ...
Mucosal Wave Movement
Mucosal Wave Movement

...  during minimal voluntary contraction  during maximal voluntary contraction. • Insertional activity: • no more than several hundred milliseconds • Prolonged-early nerve and muscle injuries, • Decreased-late nerve and muscle injuries, » replacement of normal muscle with scar tissue or fat ...
Selective Loss of Calcitonin Gene–Related Peptide
Selective Loss of Calcitonin Gene–Related Peptide

... rats (18), despite dramatic reduction of CGRP and substance P mRNA in the DRG (5,14,18). The mechanical and nociceptive afferents could interact with each other through the interneurons at the spinal cord level. Touch-induced pain seems to involve incoming activity from low-threshold mechanoreceptor ...
Effects of Repeated Administration of 3,4
Effects of Repeated Administration of 3,4

... Fig.3 shows the results of cell counts (neurons) in different groups. The number of neurons in all experimental groups was lower than in the control-saline group and the differences were significant (P < 0.05). The highest decrease in the number of neurons was shown in response to MDMA with the dose ...
Organelle motility and metabolism in axons vs dendrites of cultured
Organelle motility and metabolism in axons vs dendrites of cultured

... driven toward and accumulate in active axonal growth cones, which are probable regions of high ATP consumption, and to evacuate inactive growth cones (Morris and Hollenbeck, 1993). In addition, autophagic vacuoles exhibit an increased rate of formation and upregulation of net retrograde axonal trans ...
< 1 ... 6 7 8 9 10 11 12 13 14 ... 260 >

Neuroregeneration

Neuroregeneration refers to the regrowth or repair of nervous tissues, cells or cell products. Such mechanisms may include generation of new neurons, glia, axons, myelin, or synapses. Neuroregeneration differs between the peripheral nervous system (PNS) and the central nervous system (CNS) by the functional mechanisms and especially the extent and speed. When an axon is damaged, the distal segment undergoes Wallerian degeneration, losing its myelin sheath. The proximal segment can either die by apoptosis or undergo the chromatolytic reaction, which is an attempt at repair. In the CNS, synaptic stripping occurs as glial foot processes invade the dead synapse.Nervous system injuries affect over 90,000 people every year. It is estimated that spinal cord injuries alone affect 10,000 each year. As a result of this high incidence of neurological injuries, nerve regeneration and repair, a subfield of neural tissue engineering, is becoming a rapidly growing field dedicated to the discovery of new ways to recover nerve functionality after injury. The nervous system is divided into two parts: the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system, which consists of cranial and spinal nerves along with their associated ganglia. While the peripheral nervous system has an intrinsic ability for repair and regeneration, the central nervous system is, for the most part, incapable of self-repair and regeneration. There is currently no treatment for recovering human nerve function after injury to the central nervous system. In addition, multiple attempts at nerve re-growth across the PNS-CNS transition have not been successful. There is simply not enough knowledge about regeneration in the central nervous system. In addition, although the peripheral nervous system has the capability for regeneration, much research still needs to be done to optimize the environment for maximum regrowth potential. Neuroregeneration is important clinically, as it is part of the pathogenesis of many diseases, including multiple sclerosis.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report