Anatomy of the Nervous System
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Questions and Answers

What type of receptor is sensitive to internal stimuli like viscera?

  • Interoceptor (correct)
  • Thermoreceptor
  • Exteroceptor
  • Proprioceptor
  • Which type of corpuscles sense pressure and vibration in the skin?

  • Tactile corpuscles
  • Meissner’s corpuscles
  • Internal lamellar corpuscles
  • Lamellar (Pacinian) corpuscles (correct)
  • What is the site of impulse summation and generation of action potential in a neuron?

  • Soma
  • Node of Ranvier
  • Axoplasm
  • Axon hillock (correct)
  • What type of axons conduct action potentials quickly due to insulation by myelin sheath?

    <p>Myelinated axons</p> Signup and view all the answers

    Which type of receptor provides information about body position?

    <p>Proprioceptor</p> Signup and view all the answers

    Which part of the neuron contains mitochondria, microtubules, and sER?

    <p>2</p> Signup and view all the answers

    What is the function of internal lamellar corpuscles?

    <p>Sense pressure and vibrations in viscera</p> Signup and view all the answers

    What does axoplasm contain?

    <p>Mitochondria, microtubules, neurofilaments, and sER</p> Signup and view all the answers

    What is the main structural and functional cell of nervous tissue?

    <p>Neurons</p> Signup and view all the answers

    Which zone of the neuron is responsible for input and receives/process signals from outside the cell?

    <p>Dendritic zone</p> Signup and view all the answers

    What is the function of dendritic spines in a neuron?

    <p>Increase cell’s sensitivity to signal input</p> Signup and view all the answers

    Which type of receptors are sensitive to external stimuli?

    <p>Exteroceptors</p> Signup and view all the answers

    What types of cells are responsible for limited ability to divide and regenerate in nervous tissue?

    <p>Neurons</p> Signup and view all the answers

    Where do motor, sensory, or both functions occur in the Peripheral Nervous System?

    <p>Nerves</p> Signup and view all the answers

    What part of the neuron contains cell bodies of neurons, glial cells, and unmyelinated axons?

    <p>Grey matter</p> Signup and view all the answers

    Which part of the nervous tissue has very little extracellular matrix?

    <p>Nervous Tissue</p> Signup and view all the answers

    What do nerves contain apart from axons originating from neuron cell bodies?

    <p>Myelinated axons and glial cells</p> Signup and view all the answers

    Which type of cells are responsible for insulating axons in the Central Nervous System?

    <p>Oligodendrocytes</p> Signup and view all the answers

    What type of cells provide physical and metabolic support to neurons in the Central Nervous System?

    <p>Astrocytes</p> Signup and view all the answers

    Which cells in the Peripheral Nervous System form the myelin sheath around axons?

    <p>Schwann cells</p> Signup and view all the answers

    What are the non-neuronal cells that provide support and protection to neurons in the Peripheral Nervous System?

    <p>Satellite cells</p> Signup and view all the answers

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