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Nervous
問題数 22 • 2024/07/23
  • Nathan
    • 通報

    問題一覧

  • 1

    What is the relative distribution of sodium and potassium ions across a neuronal membrane?

    The sodium ion concentration is higher on the outside of the cell and potassium ion concentration is higher on the inside of the cell.

  • 2

    During an Action Potential, What Occurs That Results in Depolarization?

    Sodium ions diffuse to the inside of the cell membrane.

  • 3

    During an Action Potential, What Occurs That Results in Repolarization?

    Potassium ions diffuse to the outside of the cell membrane.

  • 4

    What Part of the Brain Coordinates Voluntary Muscle Movements?

    Cerebellum

  • 5

    Where are the cardiac and vasomotor centers located?

    Medulla oblongata

  • 6

    The respiratory areas are in the pons and in the __________.

    medulla oblongata

  • 7

    What converts environmental information into impulses that are then conducted to the central nervous system?

    Sensory receptors

  • 8

    What branch of the peripheral nervous system controls skeletal muscle?

    Somatic

  • 9

    What is the structure called that is a branch-like sensory process of a neuron that provides the main receptive surface for communication?

    Dendrite

  • 10

    What Part of A Neuron Originates as a Single Structure but May Give Off Many Branches?

    Axon

  • 11

    What Are the Gaps in the Myelin Sheath Called?

    Nodes of Ranvier

  • 12

    In a Resting Neuron, What Is the Difference in Charges Between the Outside and Inside of the Membrane Called?

    Resting Potential

  • 13

    What Happens to a Neuron When the Membrane Becomes More Permeable to Sodium?

    The neuron depolarizes.

  • 14

    If a Neuron's Membrane Potential Measures +25mV, the Neuron Is __________.

    depolarized

  • 15

    In most neurons, what is the approximate threshold potential?

    -55 mV

  • 16

    What Type of Conduction Occurs When an Impulse Jumps From Node to Node Along a Myelinated Axon?

    Saltatory conduction

  • 17

    A __________ is defined as a rapid automatic response to a stimulus.

    reflex

  • 18

    What Part of the Brain Contains the Thalamus and Hypothalamus, and Processes Sensory Information?

    Diencephalon

  • 19

    What Branch of the Autonomic Nervous System Prepares the Body for Stressful or Emergency Situations?

    Sympathetic nervous system

  • 20

    Normal, Quiet, Everyday Activities Like Resting and Digesting Are Controlled by Which Division of the Autonomic Nervous System?

    Parasympathetic branch

  • 21

    Neurons That Release Acetylcholine Are __________ Neurons; Those That Secrete Norepinephrine Are __________ Neurons.

    cholinergic; adrenergic

  • 22

    Which of the Following Axons Would Have the Slowest Conduction Speed?

    Unmyelinated, small-diameter axon

    • Skeletal

    Skeletal

    問題数 20•2024/07/18

    Muscular

    Muscular

    問題数 25•2024/07/19

    endocrine

    endocrine

    問題数 20•2024/08/09

    Blood

    Blood

    問題数 16•2024/08/10

    Cardiovascular

    Cardiovascular

    問題数 30•2024/08/13

    問題一覧

  • 1

    What is the relative distribution of sodium and potassium ions across a neuronal membrane?

    The sodium ion concentration is higher on the outside of the cell and potassium ion concentration is higher on the inside of the cell.

  • 2

    During an Action Potential, What Occurs That Results in Depolarization?

    Sodium ions diffuse to the inside of the cell membrane.

  • 3

    During an Action Potential, What Occurs That Results in Repolarization?

    Potassium ions diffuse to the outside of the cell membrane.

  • 4

    What Part of the Brain Coordinates Voluntary Muscle Movements?

    Cerebellum

  • 5

    Where are the cardiac and vasomotor centers located?

    Medulla oblongata

  • 6

    The respiratory areas are in the pons and in the __________.

    medulla oblongata

  • 7

    What converts environmental information into impulses that are then conducted to the central nervous system?

    Sensory receptors

  • 8

    What branch of the peripheral nervous system controls skeletal muscle?

    Somatic

  • 9

    What is the structure called that is a branch-like sensory process of a neuron that provides the main receptive surface for communication?

    Dendrite

  • 10

    What Part of A Neuron Originates as a Single Structure but May Give Off Many Branches?

    Axon

  • 11

    What Are the Gaps in the Myelin Sheath Called?

    Nodes of Ranvier

  • 12

    In a Resting Neuron, What Is the Difference in Charges Between the Outside and Inside of the Membrane Called?

    Resting Potential

  • 13

    What Happens to a Neuron When the Membrane Becomes More Permeable to Sodium?

    The neuron depolarizes.

  • 14

    If a Neuron's Membrane Potential Measures +25mV, the Neuron Is __________.

    depolarized

  • 15

    In most neurons, what is the approximate threshold potential?

    -55 mV

  • 16

    What Type of Conduction Occurs When an Impulse Jumps From Node to Node Along a Myelinated Axon?

    Saltatory conduction

  • 17

    A __________ is defined as a rapid automatic response to a stimulus.

    reflex

  • 18

    What Part of the Brain Contains the Thalamus and Hypothalamus, and Processes Sensory Information?

    Diencephalon

  • 19

    What Branch of the Autonomic Nervous System Prepares the Body for Stressful or Emergency Situations?

    Sympathetic nervous system

  • 20

    Normal, Quiet, Everyday Activities Like Resting and Digesting Are Controlled by Which Division of the Autonomic Nervous System?

    Parasympathetic branch

  • 21

    Neurons That Release Acetylcholine Are __________ Neurons; Those That Secrete Norepinephrine Are __________ Neurons.

    cholinergic; adrenergic

  • 22

    Which of the Following Axons Would Have the Slowest Conduction Speed?

    Unmyelinated, small-diameter axon