Saltatory Conduction Refers To The Conduction Of Impulses In Essays and Term Papers

  • Action Potential of a Neuron

    In order to fully understand the process of transmission of impulses within the nervous system, it is important to understand the structure and role of neurons. Neurons are functional cells dedicated to the transmission of electrical impulses and are supported in the nervous system by glial cells. Neurons...

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  • Why Do We Do This?

    its release by the axon endings C) act as a transmitting agent D) stimulate the production of serotonin 1) 2) The term central nervous system refers to the ________. A) brain, spinal cord, and peripheral nerves B) spinal cord and spinal nerves C) autonomic nervous system D) brain and spinal...

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  • Nervous System Basics

    value of the membrane potential that must be reached to produce an action potential * Action potential – the brief electrical impulse that provides the basis for conduction of info along an axon * K+ has a voltage dependent ion channel, too. * K+ ≈ -10 * AP is a brief rapid reversal...

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  • Nervous Control

    complete Part I by 3 July and Part II latest by 6 July. Enjoy! Part I 1. The endocrine system and the nervous system for internal coordination (refer to lecture notes Pg3-4) * Activity (1): View this clip http://www.youtube.com/watch?v=R218fFZhq4c * Activity (2): Additional reading ‘The...

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  • Ohm's Law

    always serve to conduct impulses (with dendrites conducting impulses toward the cell body and axons conducting impulses away from the cell body). http://en.wikipedia.org/wiki/Image:Complete_neuron_cell_diagram_en.svg Neurons can respond to stimuli and conduct impulses because a membrane potential...

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  • Simple Neuro Study Guide

    parts of a nerve cell a. Dendrites b. Cell Body c. Axon 2. Types of nerves: a. Afferent Neurons=sensory, conduct impulses TO the brain b. Efferent Neurons=motor, conduct impulses AWAY from the brain c. Interneurons 3. Types of Cells in the CNS: a. Astrocytes b. Microglia c. Oligodendrocytes-form...

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  • Nerve Conduction Velocity

    What Affects Nerve Conduction Velocity Introduction: When a nerve is stimulated, it produces a nerve impulse called action potential (Fox, 2011). During action potential, the sodium channels open and the positive sodium cells rush into the cell. An action potential fires once the cell reaches...

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  • Physiology Exam 4

    Multipolar- Most are interneurons that conduct impulses within the CNS, integrating sensory input or motor output; may be one of a chain of CNS neurons, or a single neuron connecting sensory and motor neuron. Some are motor neurons that conduct impulses along the efferent pathway from the CNS to an effector...

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  • Introduction to Neurology

    movement, stretch (proprioceptors), various chemicals and acidity (chemoreceptors). Convert different types of stimuli into electrical nerve impulses. Structure of sensory receptors Dendrites of sensory neurons divided into: a) free nerve enedings-bare dencdrites thermal...

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  • Twitch Muscle Fibers

    details of a single muscle twitch which can be separated into three phases; the latent period, the period of contracting, and the period of relaxation. Refer to Chapter 10 for details of muscle physiology. We will establish the minimal or threshold stimulus required to cause your flexor pollicis brevis...

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  • Physiology

     increases  as  the  concentration  gradient  increases.   B9.  Non-­‐myelinated  neurons  use  saltatory  conduction  to  conduct  nerve  impulses  along  the  axon.   A10.  ECF  is  contained  into  two  compartments  known  as...

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  • Nervous system

    or glands’ motor response Neurons Neurons and neuralgia compose nervous system Nerves made up of bundles of nerve fibers Neurons transmit nerve impulses along nerve fibers Neuralgia- variety of functions to aid and protect components of nervous system 2 parts Central Nervous System (CNS)- brain...

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  • A&P II Nervous Tissue

    ! • To keep controlled conditions within limits that maintain life health and homeostasis ! - Regulates body activities by responding via nerve impulses, works with the endocrine system which responds by releasing hormones ! • Responsible for our behavior, memories, and movements ! • Neurology...

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  • Myelinating Schwann Cells

    for more conduction to occur as opposed to those with smaller diameters. Some species evolved to have wider axons such as the giant squid that has a diameter of about 1mm, which is approximately 1000 times the width of a human’s (Scully, 2008). In axons with smaller diameters, faster conduction is made...

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  • Nervous System

    other neurons, while the axon sends impulses to other neurons. Axons can extend to more than a meter long. Average sized neurons have hundreds of dendrites; therefore it can receive thousands of signals simultaneously from other neurons. The neuron sends impulses by connection the axon to the dendrites...

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  • Neuronal Communication

    the info gets integrated known as the integration zone, the axon a nerve fiber carries the output information of the cell in electrical impulses called the conduction zone. The axon terminals transmit the signals to other cells through the synapse which is a gap where information is transmitted in a chemical...

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  • Propagation of Ap

    Neurons (Ch.6) • Receptors receive stimuli, and convert them to nerve impulses • Alternating graded and all-or-none signals on the membrane of a single neuron • Graded potentials decay with distance (electrotonic conduction); longdistance transmission depend on transforming signals to APs • Typically...

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  • Neurons and Glia

    (for skeletal support)Structurally, axons have mitochondria but NO ribosomes *More axons in nervous system than dendrites | Transmits information Conduction is possible thanks to low resistance to flow of K+ in axoplasma and myelin | Dendrites | Structurally have spines (increase in SA and thus communication)SPINES...

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  • Anatomy

    1. CNS- brain, spinal cord. PNS – spinal nerves, cranial nerves, ganglia, sensory receptors. 2. Excitable cells – conduct nerve impulses. Support cells- support. 3. Sensory- sense, Integration- make decisions, motor- output. 4. Soma- contain nissl bodies which synthesis protein. Dendrites-...

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  • Physiology Notes, Cell Structure and Metabolism

    muscle or gland) Neuron Anatomy Cell body Houses nucleus and organelles Dendrites Project from cell body Signals towards cell body Axon Conduction zone of neuron Axon hillock Neuron trigger zone Greatest density of voltage-gated Na+ channels Axon terminal Neuron output zone Releases chemical...

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