Fundamentals Of The Nervous System And Nervous Tissue

98 Questions  I  By Shakyrag
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Brain Quizzes & Trivia
Quiz on the fundamentals of the nervous system and the nervous tissue. This is prep for the next test and practical.

  
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  • 1. 
    The master controlling and communicating system of the body?
    • A. 

      Nervous System

    • B. 

      Skeletal System

    • C. 

      Muscular System

    • D. 

      Lymphatic System


  • 2. 
    What are the functions of the nervous system?
    • A. 

      Sensory Input, Integration, Motor Output

    • B. 

      Integration, memory, carry messages

    • C. 

      Conscious Control, Sensory, Command Center

    • D. 

      Carry Messages, Command Center, Stimuli Response


  • 3. 
    Monitoring stimuli?
    • A. 

      Sensory Input

    • B. 

      Integration

    • C. 

      Motor Output


  • 4. 
    Interpretation of sensory input?
    • A. 

      Integration

    • B. 

      Motor Output

    • C. 

      Sensory Input


  • 5. 
    Response to Stimuli?
    • A. 

      Motor Output

    • B. 

      Sensory Input

    • C. 

      Integration


  • 6. 
    Brain and spinal cord, integration and command center?
    • A. 

      Central Nervous System

    • B. 

      Peripheral Nervous System


  • 7. 
    Paired spinal and cranial nerves, carries messages to and from the spinal cord and brain?
    • A. 

      Peripheral Nervous System

    • B. 

      Central Nervous System


  • 8. 
    What are the 2 functional divisions of the PNS?
    • A. 

      Sensory (afferent division), Motor (efferent division)

    • B. 

      Somatic, Autonomic

    • C. 

      Stimuli, Response

    • D. 

      Control, Communicate


  • 9. 
    Carry impulses from skin, skeletal muscles, and joints to the brain?
    • A. 

      Sensory Afferent Fibers

    • B. 

      Motor Efferent Division


  • 10. 
    Transmit impulses from visceral organs to the brain?
    • A. 

      Visceral Afferent Fibers

    • B. 

      Sensory Afferent Fibers


  • 11. 
    Which division of the PNS contain Sensory and Visceral afferent fibers?
    • A. 

      Sensory

    • B. 

      Motor


  • 12. 
    Transmit impulses from the CNS to effector organs?
    • A. 

      Motor (Efferent) Division

    • B. 

      Sensory (Afferent Division)


  • 13. 
    What are the 2 main parts of the Motor Division?
    • A. 

      Somatic Nervous System, Autonomic Nervous System

    • B. 

      Sensory, Visceral


  • 14. 
    Conscious control of skeletal muscles?
    • A. 

      Somatic Nervous System

    • B. 

      Autonomic Nervous System


  • 15. 
    Regulates smooth muscle, cardiac muscle, and glands?
    • A. 

      Autonomic Nervous System

    • B. 

      Somatic Nervous System


  • 16. 
    Contain the sympathetic and parasympathetic divisions?
    • A. 

      Autonomic Nervous System

    • B. 

      Somatic Nervous System


  • 17. 
    What are the two principal cell types of the nervous system?
    • A. 

      Dendrites, Axons

    • B. 

      Neurons, Supporting Cells

    • C. 

      Neuroglia, Astrocytes

    • D. 

      Microglia, Ependymal


  • 18. 
    Excitable cells that transmit electrical signals?
    • A. 

      Neuroglia

    • B. 

      Neurons

    • C. 

      Astrocytes

    • D. 

      Microglia


  • 19. 
    Cells that surround and wrap neurons?
    • A. 

      Microglia

    • B. 

      Supporting Cells

    • C. 

      Neuroglia

    • D. 

      Astrocytes


  • 20. 
    Cells that provide a supportive scaffolding for neurons, segregate and insulate neurons, guide young neurons to the proper connections, promote health and growth?
    • A. 

      Ependymal Cells

    • B. 

      Neuroglia

    • C. 

      Astrocytes

    • D. 

      Microglia


  • 21. 
    Most abundant versatile and highly branched glial cells, they cling to neurons and their synaptic endings, and cover capillaries?
    • A. 

      Oligodendrocytes

    • B. 

      Astrocytes

    • C. 

      Microglia

    • D. 

      Ependymal Cells


  • 22. 
    Support and brace neurons, anchor neurons to their nutrient supplies, guide migration of young neurons, control the chemical environment?
    • A. 

      Oligodendrocytes

    • B. 

      Astrocytes

    • C. 

      Microglia

    • D. 

      Ependymal Cells


  • 23. 
    Phagocytes that monitor the health of neurons?
    • A. 

      Schwann Cells

    • B. 

      Microglia

    • C. 

      Ependymal Cells

    • D. 

      Oligodendrocytes


  • 24. 
    They line the central cavities of the brain and spinal column?
    • A. 

      Satellite Cells

    • B. 

      Ependymal Cells

    • C. 

      Oligodendrocytes

    • D. 

      Schwann Cells


  • 25. 
    Branched cells that wrap CNS nerve fibers?
    • A. 

      Neurons

    • B. 

      Oligodendrocytes

    • C. 

      Schwann Cells

    • D. 

      Satellite Cells


  • 26. 
    Surround fibers of the PNS?
    • A. 

      Neuroglia

    • B. 

      Schwann Cells (Neurolemmocytes)

    • C. 

      Satellite Cells

    • D. 

      Neurons


  • 27. 
    Surround neuron cell bodies with ganglia?
    • A. 

      Astrocytes

    • B. 

      Satellite Cells

    • C. 

      Neurons

    • D. 

      Neuroglia


  • 28. 
    Their plasma membrane function in electrical signaling, cell-to-cell signaling during development?
    • A. 

      Processes

    • B. 

      Dendrites

    • C. 

      Neurons (Nerve Cells)

    • D. 

      Soma


  • 29. 
    Contains the nucleus and a nucleolus, the major biosynthetic center, the focal point for the outgrowth of neuronal processes, has no centrioles, has well developed Nissl bodes, contains an axon hillock?
    • A. 

      Dendrites

    • B. 

      Axons

    • C. 

      Soma

    • D. 

      Processes


  • 30. 
    Armlike extensions from the soma, called tracts in the CNS and nerves in the PNS?
    • A. 

      Axons

    • B. 

      Neurons

    • C. 

      Processes

    • D. 

      Dendrites


  • 31. 
    Short tapering and diffusely branched processes, receptive or input regions of the neuron, electrical signals are conveyed as graded potentials?
    • A. 

      Neurons

    • B. 

      Soma

    • C. 

      Dendrites

    • D. 

      Axons


  • 32. 
    Slender processes of uniform diameter arising from the hillock, long ones are called nerve fibers, usually there is only one unbranched per neuron?
    • A. 

      Soma

    • B. 

      Processes

    • C. 

      Axon

    • D. 

      Dendrite


  • 33. 
    Generate and transmit action potentials, secrete neurotransmitters from the terminals?
    • A. 

      Myelin Sheath

    • B. 

      Nodes of Ranvier

    • C. 

      Unmyelinated Axons

    • D. 

      Axons


  • 34. 
    What are the ways movement occurs along axons?
    • A. 

      Up and Down

    • B. 

      Vertically and Horizontally

    • C. 

      Laterally and Bilaterally

    • D. 

      Anterograde and Retrograde


  • 35. 
    Whitish, fatty segmented sheath around most long axons, it functions to protect the axon, electrically insulate fibers from one another, and increase the speed of nerve impulse transmission?
    • A. 

      Neurilemma

    • B. 

      Nodes of Ranvier

    • C. 

      Unmyelinated Axons

    • D. 

      Myelin Sheath


  • 36. 
    Formed by Schwann cells in the PNS?
    • A. 

      Nodes of Ranvier

    • B. 

      Unmyelinated Axons

    • C. 

      Dendrites

    • D. 

      Myelin Sheath


  • 37. 
    Envelopes an axon in a trough, encloses the axon with its plasma membrane, has concentric layers of membrane that make up the myelin sheath?
    • A. 

      Neurilemma

    • B. 

      Nodes of Ranvier

    • C. 

      Dendrite

    • D. 

      Schwann Cell


  • 38. 
    Remaining nucleus and cytoplasm of a Schwann Cell?
    • A. 

      Nodes of Ranvier

    • B. 

      Axons

    • C. 

      Dendrite

    • D. 

      Neurilemma


  • 39. 
    Gaps in the myelin sheath between adjacent Schwann cells, sites where axon collaterals can emerge?
    • A. 

      Dendrites

    • B. 

      Soma

    • C. 

      Unmyelinated Axons

    • D. 

      Nodes of Ranvier


  • 40. 
    A schwann cell surrounds nerve fibers but coiling does not take place, schwann cells partially enclose 15 or more axons?
    • A. 

      Myelin Sheath

    • B. 

      Dendrite

    • C. 

      Soma

    • D. 

      Unmyelinated Axons


  • 41. 
    Both myelinated and unmyelinated fibers are present, myelin sheaths are formed by oligodendrocytes, Nodes of Ranvier are widely spaces, no neurilemma?
    • A. 

      Axons of the CNS

    • B. 

      Axons of the PNS

    • C. 

      Dendrites of the CNS

    • D. 

      Dendrites of the PNS


  • 42. 
    Dense collections of myelinated fibers?
    • A. 

      White Matter

    • B. 

      Gray Matter


  • 43. 
    Mostly soma and unmyelinated fibers?
    • A. 

      Gray matter

    • B. 

      White matter


  • 44. 
    Three or more processes?
    • A. 

      Multipolar

    • B. 

      Bipolar

    • C. 

      Unipolar


  • 45. 
    Two processes (axon and dendrite)
    • A. 

      Bipolar

    • B. 

      Unipolar

    • C. 

      Multipolar


  • 46. 
    Single, short process?
    • A. 

      Unipolar

    • B. 

      Multipolar

    • C. 

      Bipolar


  • 47. 
    Transmit impulses toward the CNS?
    • A. 

      Sensory (afferent)

    • B. 

      Motor (efferent)

    • C. 

      Interneurons


  • 48. 
    Carry impulses away from the CNS?
    • A. 

      Motor (Efferent)

    • B. 

      Sensory (Afferent)

    • C. 

      Interneurons


  • 49. 
    Shuttle signals through CNS pathways?
    • A. 

      Interneurons

    • B. 

      Sensory (afferent)

    • C. 

      Motor (efferent)


  • 50. 
    Electrical impulses carried along the length of axons, always the same regardless of stimulus, the underlying functional feature of the nervous system?
    • A. 

      Action Potentials

    • B. 

      Sensory

    • C. 

      Motor

    • D. 

      Bipolar


  • 51. 
    Measure of potential energy generated by separated charge?
    • A. 

      Resistance (R)

    • B. 

      Voltage (V)

    • C. 

      Potential Difference

    • D. 

      Current (I)


  • 52. 
    Voltage measured between two points?
    • A. 

      Insulator

    • B. 

      Potential Difference

    • C. 

      Current (I)

    • D. 

      Resistance (R)


  • 53. 
    The flow of electrical charge between two points?
    • A. 

      Conductor

    • B. 

      Current (I)

    • C. 

      Resistance (R)

    • D. 

      Insulator


  • 54. 
    Hindrance to charge flow?
    • A. 

      Voltage (V)

    • B. 

      Resistance (R)

    • C. 

      Insulator

    • D. 

      Conductor


  • 55. 
    Substance with high electrical resistance?
    • A. 

      Potential Difference

    • B. 

      Insulator

    • C. 

      Conductor

    • D. 

      Voltage (V)


  • 56. 
    Substance with low electrical resistance?
    • A. 

      Current (I)

    • B. 

      Conductor

    • C. 

      Voltage (V)

    • D. 

      Potential Difference


  • 57. 
    Passive, or leakage, channels?
    • A. 

      Open and close in response to physical deformation of receptors

    • B. 

      Always Open

    • C. 

      Open with binding of a specific neurotransmitter

    • D. 

      Open and close in response to membrane potential


  • 58. 
    Chemically gated channels?
    • A. 

      Always open

    • B. 

      Open with binding of a specific neurotransmitter

    • C. 

      Open and close in response to membrane potential

    • D. 

      Open and close in response to physical deformation of receptors


  • 59. 
    Voltage-gated channels?
    • A. 

      Open with binding of a specific neurotransmitter

    • B. 

      Open and close in response to membrane potential

    • C. 

      Open and close in response to physical deformation of receptors

    • D. 

      Always open


  • 60. 
    Mechanically gated channels?
    • A. 

      Open and close in response to membrane potential

    • B. 

      Open and close in response to physical deformation of receptors

    • C. 

      Always open

    • D. 

      Open with binding of a specific neurotransmitter


  • 61. 
    Na+ - K+ Gated Channel*Closed when a neurotransmitter is not bound to the extracellular receptor*Na+ cannot enter the cell and K+ cannot exit the cell*Open when a neurotransmitter is attached to the receptor*Na+ enters the cell and K+ exits the cell
    • A. 

      Operation of a Voltage-Gated Channel

    • B. 

      Operation of a Gated Channel


  • 62. 
    Na+ Channel*Closed when the intracellular environment is negative*Na+ cannot enter the cell*Open when the intracellular environment is positive*Na+ can enter the cell
    • A. 

      Operation of a Gated Channel

    • B. 

      Operation of a Voltage-Gated Channel


  • 63. 
    Ions move quickly across the membrane, movement is along their electrochemical gradients, an electrical current is created, voltage changes across the membrane?
    • A. 

      Gated Channels are Open

    • B. 

      Gated Channels are Closed


  • 64. 
    The potential difference across the membrane of a resting neuron?
    • A. 

      -7mV

    • B. 

      -35mV

    • C. 

      -70mV

    • D. 

      -140mV


  • 65. 
    Used to integrate, send, and receive information, changes produced by changes in membrane permeability to ions, alterations of ion concentrations across the membrane?
    • A. 

      Soma Potential

    • B. 

      Nucleus Potential

    • C. 

      Membrane Potential

    • D. 

      Cell Potential


  • 66. 
    The inside of the membrane becomes less negative?
    • A. 

      Repolarization

    • B. 

      Hyperpolarization

    • C. 

      Depolarization


  • 67. 
    The membrane retunrs to its resting membrane potential?
    • A. 

      Hyperpolarization

    • B. 

      Depolarization

    • C. 

      Repolarization


  • 68. 
    The inside of the membrane becomes more negative than the resting potential?
    • A. 

      Depolarization

    • B. 

      Repolarization

    • C. 

      Hyperpolarization


  • 69. 
    *Short lives, local changes in membrane potential*Decrease in intensity with distance*Magnitude varies directly with the strength of the stimulus*Sufficiently strong graded potential can initiate action potentials*Voltage changes are decremental*Current is quickly dissipated due to the leaky membrane*Only travel over short distances
    • A. 

      Graded Potentials

    • B. 

      Action Potentials


  • 70. 
    *A brief reversal of membrane potential with a total amplitude of 100 mV*Only generated by muscle cells and neurons*They do not decrease in strength over distance*They are the principal means of neural communication*Called nerve impluses in the axon of a neuron
    • A. 

      Graded Potentials

    • B. 

      Action Potentials


  • 71. 
    *Na+ and K+ channels are closed*Activation Gates - closed*Inactivation Gates - open
    • A. 

      Depolarization Phase

    • B. 

      Repolarization Phase

    • C. 

      Hyperpolarization

    • D. 

      Resting State


  • 72. 
    *Na+ permeability increses, membrane potential reverses*Na+ gates are opened, K+ gates are closed*Threshold -55 - -50mV
    • A. 

      Repolarization Phase

    • B. 

      Hyperpolarization

    • C. 

      Resting State

    • D. 

      Depolarization Phase


  • 73. 
    *Sodium inactivation gates close*K+ gates open*K+ exits the cell, internal negativity of the resting neuron restored
    • A. 

      Hyperpolarization

    • B. 

      Resting State

    • C. 

      Depolarization Phase

    • D. 

      Repolarization Phase


  • 74. 
    *Potassium gates remain open, effux of K+*neuron is insensitive to stimulus and depolarization during this time
    • A. 

      Depolarization Phase

    • B. 

      Resting State

    • C. 

      Repolarization Phase

    • D. 

      Hyperpolarization


  • 75. 
    What is the correct order for the phases of the Action Potential?
    • A. 

      Depolarization Phase, Repolarization Phase, Hyperpolarization, Resting State

    • B. 

      Repolarization Phase, Hyperpolarization, Resting State, Depolarization

    • C. 

      Hyperpolarization, Resting State, Depolarization Phase, Repolarization Phase

    • D. 

      Resting State, Depolarization Phase, Repolarization Phase, Hyperpolarization


  • 76. 
    Time from the opening of the Na+ activation gates until the closing of inactivation gates?
    • A. 

      Absolute Refractory Period

    • B. 

      Relative Refractory Period


  • 77. 
    Prevents the neuron from generating an action potential, ensures that each action potential is separate, enforces one-way transmission of nerve impulses?
    • A. 

      Absolute Refractory Period

    • B. 

      Relative Refractory Period


  • 78. 
    Sodium gates are closed, potassium gates are open, repolarization is occurring, the threshold level is elevared allowing strong stimuli to increase the frequency of action potential events?
    • A. 

      Relative Refractory Period

    • B. 

      Absolute Refractory Period


  • 79. 
    The larger the diameter, the faster the ______?
    • A. 

      Impulse

    • B. 

      Condution

    • C. 

      Treatment

    • D. 

      Reastion


  • 80. 
    A junction that mediates information transfer from one neuron to another neuron or to an effector cell?
    • A. 

      Node

    • B. 

      Synapse

    • C. 

      Desmosome

    • D. 

      Terminal


  • 81. 
    Conducts impulses toward the synapse?
    • A. 

      Postsynaptic Neuron

    • B. 

      Presynaptic Neuron


  • 82. 
    Transmits impulses away from the synapse?
    • A. 

      Presynaptic Neuron

    • B. 

      Postsynaptic Neuron


  • 83. 
    Synapses between the axon of one neuron and the dendrite of another?
    • A. 

      Dendrodendritic

    • B. 

      Axondendritic

    • C. 

      Axosomatic

    • D. 

      Axoaxonic


  • 84. 
    Synapses between the axon of one neuron and the soma of another?
    • A. 

      Dendrosomatic

    • B. 

      Axosomatic

    • C. 

      Axoaxonic

    • D. 

      Dendrodendritic


  • 85. 
    Less common variety, correspond to gap junctions found in other cell types, important in the CNS for arousal from sleep, mental attention, emotions and memory, ion and water homeostasis?
    • A. 

      Chemical Synapses

    • B. 

      Electrical Synapses

    • C. 

      Synaptic Cleft


  • 86. 
    Specialized for the release and reception of neurotransmitters?
    • A. 

      Electrical Synapses

    • B. 

      Chemical Synapses

    • C. 

      Synaptic Cleft


  • 87. 
    Fluid filled space separating the presynaptic and postsynaptic neurons, prevents nerve impulses from directly passing from one neuron to the next, transmission is a chemical event, and ensures unidirectional communication between neurons?
    • A. 

      Electrical Synapses

    • B. 

      Synaptic Cleft

    • C. 

      Chemical Synapses


  • 88. 
    Released at the neuromuscular junction, synthesized and enclosed in synaptic vesicles, released by all neurons that stimulate skeletal muscle, some neurons in the autonomic nervous system?
    • A. 

      Amino Acids

    • B. 

      Peptides

    • C. 

      Acetylcholine

    • D. 

      Biogenic Amines


  • 89. 
    Include dopamine, norepinephrine, epinephrine, serotning, histamine, broadly distributed in the brain, play roles in emotional behaviors and our biological clock?
    • A. 

      Peptides

    • B. 

      Acetylcholine

    • C. 

      Biogenic Amines

    • D. 

      Amino Acids


  • 90. 
    Include GABA, Glycine, Apartate, Glutamate, Found only in the CNS?
    • A. 

      Biogenic Amines

    • B. 

      Acetylcholine

    • C. 

      Amino Acids

    • D. 

      Peptides


  • 91. 
    Act as natural opiates, reduce pain perception, bind to the same receptors as opiates and morphine, somatostatin, endorphins?
    • A. 

      Amino Acids

    • B. 

      Biogenic Amines

    • C. 

      Acetylcholine

    • D. 

      Peptides


  • 92. 
    Found in both the CNS and PNS, provokes pain sensation?
    • A. 

      CO

    • B. 

      NO

    • C. 

      H2O

    • D. 

      ATP


  • 93. 
    Activates the intracellular receptor guanylyl cyclase, is involved in learning and memory?
    • A. 

      CO

    • B. 

      ATP

    • C. 

      H2O

    • D. 

      NO


  • 94. 
    Main regulator of cGMP in the brain?
    • A. 

      NO

    • B. 

      ATP

    • C. 

      H2O

    • D. 

      CO


  • 95. 
    ____________________ neurotransmitters cause depolarizations?
    • A. 

      Excitatory

    • B. 

      Inhibitory


  • 96. 
    ________________ neurotransmitters cause hyperpolarizations?
    • A. 

      Excitatory

    • B. 

      Inhibitory


  • 97. 
    Input travels along one pathway to a specific destination, works in an all or none manner?
    • A. 

      Serial Processing

    • B. 

      Parallel Processing


  • 98. 
    Input travels along several pathways, pathways are integrated in different CNS systems, one stimulus promotes numerous responses?
    • A. 

      Serial Processing

    • B. 

      Parallel Processing


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