Neuroscience Multiple-Choice Quiz test bank
38 Questions
6 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which division of the nervous system is responsible for sending nerve impulses to slow the heart's rate of contraction?

  • Sensory (afferent) division
  • Somatic nervous system
  • Parasympathetic division (correct)
  • Sympathetic division
  • Which division of the nervous system is likely to send nerve impulses carrying information about cool temperatures on the skin to the brain?

  • Sympathetic division
  • Parasympathetic division
  • Sensory (afferent) division (correct)
  • Somatic nervous system
  • Which division of the nervous system sends nerve impulses to direct movement in skeletal muscles?

  • Sensory (afferent) division
  • Somatic nervous system (correct)
  • Sympathetic division
  • Parasympathetic division
  • To which division of the nervous system do the nerve fibers of the optic nerve (Cranial nerve II) most likely belong?

    <p>Sensory (afferent) division</p> Signup and view all the answers

    What do ependymal cells do in the CNS?

    <p>Circulate cerebrospinal fluid</p> Signup and view all the answers

    Where are bipolar neurons commonly found?

    <p>Retina of the eye</p> Signup and view all the answers

    What is the function of acetylcholine in the nervous system?

    <p>Innervate skeletal muscle as an excitatory neurotransmitter</p> Signup and view all the answers

    What is the absolute refractory period of a neuron?

    <p>The period after an initial stimulus when a neuron is not sensitive to another stimulus</p> Signup and view all the answers

    What happens if neurons lose the function of acetylcholine esterase?

    <p>Inability to destroy and remove acetylcholine from the synaptic cleft</p> Signup and view all the answers

    What do collections of nerve cell bodies outside the central nervous system form?

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

    What is the role of motor fibers in the nervous system?

    <p>Conduct nerve impulses to smooth muscle, cardiac muscle, and glands</p> Signup and view all the answers

    What type of neurons convey information from somatic receptors and special senses to the CNS?

    <p>Sensory neurons</p> Signup and view all the answers

    What determines the stimulus strength in the CNS?

    <p>Frequency of action potentials</p> Signup and view all the answers

    What is the integrative function of the nervous system?

    <p>Analyzing sensory information, storing information, and making decisions</p> Signup and view all the answers

    What is the role of voltage-gated channels in neurons?

    <p>Participate in the generation and conduction of action potentials</p> Signup and view all the answers

    Do neurons have extreme longevity and are they mitotic?

    <p>No, they do not have extreme longevity and are not mitotic</p> Signup and view all the answers

    What is the principal inhibitory neurotransmitter of the spinal cord?

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

    What is responsible for propelling cellular components along microtubules?

    <p>Axonal transport</p> Signup and view all the answers

    What reflects the time required for neurotransmitter release, diffusion across the synaptic cleft, and binding to receptors?

    <p>Synaptic delay</p> Signup and view all the answers

    What conducts impulses from the CNS to skeletal muscles?

    <p>Somatic nervous system</p> Signup and view all the answers

    What do astrocytes do in the brain?

    <p>Change the permeability of capillaries</p> Signup and view all the answers

    What do microglial cells in the CNS become to phagocytize invading microbes and neuronal debris?

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

    What type of potential describes short distance depolarization?

    <p>Excitatory postsynaptic potential</p> Signup and view all the answers

    What plays a role in emotional behavior and helps regulate the biological clock?

    <p>Biogenic amine neurotransmitters</p> Signup and view all the answers

    What moves across excitable living membranes, and can open in response to electrical potential changes?

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

    What is the interior surface of a neuron's plasma membrane like at resting membrane potential?

    <p>Has a negative charge and contains less sodium</p> Signup and view all the answers

    What happens when a motor neuron in the body is stimulated?

    <p>The impulse would spread bidirectionally</p> Signup and view all the answers

    When can a second nerve impulse be generated?

    <p>After the membrane potential has been reestablished</p> Signup and view all the answers

    Which cells are responsible for regulating the concentration of ions in the chemical environment surrounding neurons?

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

    Which cells are primarily responsible for aiding in the regeneration of damaged nerve fibers in the peripheral nervous system?

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

    Which cells are responsible for guiding the formation of synapses between newly developed neurons and other neurons?

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

    Which cells are most responsible for removing bacterial infections that cause meningitis in the central nervous system?

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

    Which aspect of an action potential is best illustrated by the opening of voltage-gated sodium ion channels due to a threshold stimulus, causing further depolarization?

    <p>Positive feedback</p> Signup and view all the answers

    What allows for the one-way transmission of action potential down the axon, limits the frequency of action potentials, and stops the depolarization of the axon membrane?

    <p>Closing of inactivation gates in voltage-gated sodium ion channels</p> Signup and view all the answers

    During which period of an action potential is a larger than normal stimulus needed to cause another action potential due to the voltage-gated potassium ion channels remaining open long enough to hyperpolarize the axon membrane?

    <p>Relative refractory period</p> Signup and view all the answers

    What does spatial summation imply?

    <p>The postsynaptic cell has many synapses with many presynaptic neurons, leading to stimulation to threshold</p> Signup and view all the answers

    What does temporal summation imply?

    <p>A presynaptic neuron is sending frequent EPSP, leading to stimulation to threshold in the postsynaptic cell</p> Signup and view all the answers

    What is the likely result of acetylcholine acting in an excitatory manner?

    <p>Opening of chemically gated sodium channels on the postsynaptic cell</p> Signup and view all the answers

    Study Notes

    Neuroscience Multiple Choice Questions Summary

    • The sensory (afferent) division, somatic nervous system, sympathetic division, and parasympathetic division are components of the nervous system.
    • Astrocytes are responsible for regulating the concentration of ions in the chemical environment surrounding neurons.
    • Schwann cells are primarily responsible for aiding in the regeneration of damaged nerve fibers in the peripheral nervous system.
    • Astrocytes are responsible for guiding the formation of synapses between newly developed neurons and other neurons.
    • Microglia are cells most responsible for removing bacterial infections that cause meningitis in the central nervous system.
    • Neurons have many mitochondria, extensive rough endoplasmic reticulum, and clusters of ribosomes, indicating a high demand for ATP, oxygen consumption, and protein production, but a relatively stable internal environment.
    • An action potential's positive feedback aspect is best illustrated by the opening of voltage gated sodium ion channels due to a threshold stimulus, causing further depolarization.
    • The closing of inactivation gates in voltage gated sodium ion channels during the depolarization phase of an action potential allows for the one-way transmission of action potential down the axon, limits the frequency of action potentials, and stops the depolarization of the axon membrane.
    • During the relative refractory period of an action potential, a larger than normal stimulus is needed to cause another action potential due to the voltage gated potassium ion channels remaining open long enough to hyperpolarize the axon membrane.
    • Spatial summation implies that the postsynaptic cell has many synapses with many presynaptic neurons, leading to stimulation to threshold.
    • Temporal summation implies that a presynaptic neuron is sending frequent EPSP, leading to stimulation to threshold in the postsynaptic cell.
    • Acetylcholine acting in an excitatory manner likely results in the opening of chemically gated sodium channels on the postsynaptic cell.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Description

    Test your knowledge of neuroscience with these multiple-choice questions covering topics such as nervous system components, neuron function, action potential, synaptic transmission, and neurotransmitters. See how well you understand key concepts in neuroscience with this quiz.

    More Like This

    Neuron Structure and Function Quiz
    5 questions
    Nervous System part 1
    40 questions

    Nervous System part 1

    WiseTropicalIsland4758 avatar
    WiseTropicalIsland4758
    Nervous System Cells Overview
    10 questions
    Use Quizgecko on...
    Browser
    Browser