2024-02-13T04:20:21+03:00[Europe/Moscow] en true Glia cells, Glia, Neurons, Astroyctes, Synthesize growth factors, Radial glia cells, Oligodendrocytes and Schwann cells, Removing debris, Neuron Doctrine, Sensory (afferent), Interneurons, Motor (efferent), Neurons can be classified, Projection neurons, local interneurons, Axon, Cell body, Neucleus, Cajal proposed, Synaptic vesicles, Neurotramitters, Receptors, Dendritic spines, The property of neural plasticity, Axon hillock, Axon collateral, Axon transport, How many axons emerge from a neuron cell body, 2, Which has a larger diameter, Cajal's principle of connections specificity, Paul weiss, Roger sorrry flashcards
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  • Glia cells
    Considered support cells than signaling cells
  • Glia
    Greek word "glue
  • Neurons
    Signaling units
  • Astroyctes
    Transport nutrients from capillaries to neurons
  • Synthesize growth factors
    Buffer potassium in the extra cellular space
  • Radial glia cells
    Guide cells to their proper position during development
  • Oligodendrocytes and Schwann cells
    Insulate axons to increase the speed of action potential conduction
  • Removing debris
    Microglia remove debris after injury or neuronal death
  • Neuron Doctrine
    Brain is composed of independent cells
  • Sensory (afferent)
    Carries sensory input
  • Interneurons
    Refers to any neurons that is not a sensory or motor neuron
  • Motor (efferent)
    Carries comands to muscles
  • Neurons can be classified
    Function
  • Projection neurons
    Projects outside of the structure within which they reside
  • local interneurons
    Projects only within the structure within they reside
  • Axon
    Arises from the axon hilllock
  • Cell body
    Metabolic center
  • Neucleus
    Endoplasmix reticulum,
  • Cajal proposed
    Principle of dynamic polarization, which states that the signals within a neuron flow in one direction
  • Synaptic vesicles
    small spheres in presynaptic axon terminals that contain a neurotransmitter
  • Neurotramitters
    Specialized chemical substance
  • Receptors
    Specialized proteins that react to a neurotransmitter
  • Dendritic spines
    Studded on the dendrites and increase surface are
  • The property of neural plasticity
    Dendritic spines allow their number and structure to be rapidly altered by experience
  • Axon hillock
    Cone shaped area of the cell body that gives rise to the axon
  • Axon collateral
    Branch of an axon that also ends in terminals and innervates other cells
  • Axon transport
    Movement of materials within an axon
  • How many axons emerge from a neuron cell body
    1
  • 2
    Many
  • Which has a larger diameter
    Densities
  • Cajal's principle of connections specificity
    Each cell makes a specific connection at particular points with specific target cells and not others
  • Paul weiss
    Proposed nervous system was a "vast neural network that connects the sense organs and muscles to the brain originates as an undifferentiated and unspecified mesh of randomly connected nerve fibers
  • Roger sorrry
    Found severed, thousands of individuals fibers that make up each optic nerve grow back into the brain