• 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
The polyvagal theory: phylogenetic substrates of
The polyvagal theory: phylogenetic substrates of

... react to challenge in order to maintain visceral homeostasis. These reactions change physiological state and, in mammals, limit sensory awareness, motor behaviors, and cognitive potentials. We can intuitively grasp the limitations of behavior when described in terms such as dexterity, speed and stre ...
Anatomy - Nervous System Test Chpt 9
Anatomy - Nervous System Test Chpt 9

... Indicate whether the sentence or statement is true or false. If false, change the identified word or phrase to make the sentence or statement true. ____ 19. If you accidentally step on a tack with your bare foot, the pathway that the nerve impulse takes from your foot to your spinal cord to your leg ...
The polyvagal theory: phylogenetic substrates of a
The polyvagal theory: phylogenetic substrates of a

... react to challenge in order to maintain visceral homeostasis. These reactions change physiological state and, in mammals, limit sensory awareness, motor behaviors, and cognitive potentials. We can intuitively grasp the limitations of behavior when described in terms such as dexterity, speed and stre ...
ACTIN CYTOSKELETON REGULATION IN NEURONAL
ACTIN CYTOSKELETON REGULATION IN NEURONAL

... branch in characteristic locations along their paths, connecting with multiple targets in different regions of the nervous system. Dendrites usually do not extend over as long a distance away from the cell body as axons but often branch extensively, giving rise to dendritic trees characteristic of a ...
Chapter 6 — Gross Anatomy of the Brain
Chapter 6 — Gross Anatomy of the Brain

... As the brain grows in size and complexity, these regions ...
Neuronal Control of Mucus Secretion by Leeches: Toward a General
Neuronal Control of Mucus Secretion by Leeches: Toward a General

... sites which in turn control the gut musculature. Thus, the mammalian gut is rich in serotonin which induces its epithelium to secrete mucus. Here too then, as in the body wall of the leech, serotonin appears to mediate mucus secretion. Additional inferential support for serotonin subserving the secr ...
Lesion of the perforant path triggers a biphasic neurogenic response
Lesion of the perforant path triggers a biphasic neurogenic response

... than in the d entate gyrus, w here com peting forces such as neurod egeneration and neurogenesis d ynam ically m od ify neuronal connectivity, and can occur sim ultaneously. This plasticity of the ad ult nervous system is particularly im portant in the context of traum atic brain injury or d eaffere ...
Sprecher_2011_larval.. - Institute of Neuroinformatics
Sprecher_2011_larval.. - Institute of Neuroinformatics

... Fig. 1. Elements of the larval optic neuropil (LON). All panels show schematic or confocal images representing frontal section of a first instar larval brain hemisphere; lateral to the left, dorsal up. A: Labeling with anti-Neuroglian (Ngl), showing neuronal cell bodies in cortex (co) and nerve proce ...
06-pons + midbrain
06-pons + midbrain

... descending cortical efferent Fs. -50% of crus consists of pyramidal tract consists of cortico-bulbar Fibres (end in motor cranial nerve nuclei of brain stem) + cortico-spinal fibres which traverse pons, down to medullary pyramid and spinal cord. ...
L1CAM/Neuroglian controls the axon–axon interactions establishing
L1CAM/Neuroglian controls the axon–axon interactions establishing

... that extracellular Nrg-mediated adhesion is required for MB development (Goossens et al., 2011), the precise cellular and molecular requirements have not been addressed. To address these questions and to identify potential regulatory mechanisms, we first compared mutations affecting extracellular ad ...
Neuronal innervation of the exocrine defence glands in stick insects
Neuronal innervation of the exocrine defence glands in stick insects

... They increase the potential for survival and thus contribute to the individual fitness of an organism. Two modes of defence are commonly distinguished: primary defence mechanisms (avoiding detection or contact, e. g. by crypsis) and secondary defence mechanisms (defence elicited only after detection ...
Synaptic pathways and inhibitory gates in the spinal cord dorsal horn
Synaptic pathways and inhibitory gates in the spinal cord dorsal horn

... glutamic acid decarboxylase 67 (GAD67) GABAergic neurons. This results in fluorescent labeling of 30–70% of the GABAergic neurons in the dorsal horn.14–16 Recording from these neurons and stimulating the dorsal root to activate low- and high-threshold sensory afferent fibers allowed us to investigat ...
An Introduction to the ANS and Higher
An Introduction to the ANS and Higher

... • Parasympathetic Division • Preganglionic fibers originate in brain stem and sacral segments of spinal cord; craniosacral • Synapse in ganglia close to (or within) target organs • Preganglionic fibers are long • Postganglionic fibers are short • Parasympathetic division stimulates visceral activity ...
Chapter 7 complete ppt-1 - West Branch Local School District
Chapter 7 complete ppt-1 - West Branch Local School District

... Axons and Nerve Impulses  Axons end in axonal terminals  Axonal terminals contain vesicles with neurotransmitters  Axonal terminals are separated from the next neuron by a gap  Synaptic cleft – gap between adjacent neurons ...
A STUDY OF PRO- AND ANTI-NOCICEPTIVE FACTORS IN A MODEL... ASSOCIATED VISCERAL PAIN by Jessica Rose Benson
A STUDY OF PRO- AND ANTI-NOCICEPTIVE FACTORS IN A MODEL... ASSOCIATED VISCERAL PAIN by Jessica Rose Benson

... This thesis examined whether neuroanatomical remodeling of DRG central nerve terminals underlies pro-nociceptive signaling and whether subsets of immune cells source the anti-nociceptive factor, β-endorphin. To examine pro-nociceptive mechanisms, acute and chronic dextran sulfate sodium (DSS) mouse ...
18-1 PITUITARY GLAND AND HYPOTHALAMUS 1. The pituitary
18-1 PITUITARY GLAND AND HYPOTHALAMUS 1. The pituitary

... 1. The pituitary gland secretes nine major hormones that regulate many body functions. 2. The pituitary gland was once considered the "master" gland because hormones released from the pituitary control other endocrine glands and many body functions. It is now known that the regulation of release of ...
The role of repulsive guidance molecules in the
The role of repulsive guidance molecules in the

... During the development of the nervous system, outgrowing axons often have to travel long distances to reach their target neurons. In this process, outgrowing neurites tipped with motile growth cones rely on guidance cues present in their local environment. These cues are detected by specific recepto ...
Branched thalamic afferents - the Sherman Lab
Branched thalamic afferents - the Sherman Lab

... with the actual anatomy of the pathways generally not clearly defined or completely undefined, and a number of different diagrams have been published (see Fig. 4 for two examples). The implied value of an efference copy is that it provides information of body movements, information needed to disting ...
Nervous System
Nervous System

... next neuron by a gap  Synaptic cleft – gap between adjacent neurons  Synapse – junction between nerves Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Slide 7.3b
Slide 7.3b

... next neuron by a gap  Synaptic cleft – gap between adjacent neurons  Synapse – junction between nerves Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Human Physiology - Maryville University
Human Physiology - Maryville University

... much more readily in PNS than CNS Oligodendrocytes produce proteins that inhibit regrowth ...
How Do Neurons Convey Information?
How Do Neurons Convey Information?

... did not seem to be through conventional electrical impulses. But, if conventional electrical impulses are not the means, how do nerves convey information? To explain the electrical signals of a neuron, Julius Bernstein suggested in 1886 that the neuron’s electrical charge has a chemical basis. This ...
Axon Initiation and Growth Cone Turning on Bound Protein Gradients Cellular/Molecular Junyu Mai,
Axon Initiation and Growth Cone Turning on Bound Protein Gradients Cellular/Molecular Junyu Mai,

... Extracellular gradients of secreted guidance factors are known to guide axon pathfinding and neuronal migration. These factors are likely to bind to cell surfaces or extracellular matrix, but whether and how they may act in bound gradients remains mostly unclear. In this study, we have developed a n ...
General somatic motor nuclei
General somatic motor nuclei

... eye movements on ...
Here is a link
Here is a link

... nervous system (CNS) functions as well as dysfunctions and diseases with certain patterns of the electroencephalogram (EEG) on an empirical basis. Obviously, this method has been found valuable in clinical practice. Therefore, why should the clinical electroencephalographer study the basic elementar ...
< 1 ... 12 13 14 15 16 17 18 19 20 ... 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