Neurons Structure and Function
3 years ago
angiejones101
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25 QuestionsShow answers
  • Question 1
    30 seconds
    Q. The skeletal muscles are controlled by this part of the nervous system.
    answer choices
    Somatic Nervous system
    Autonomic Nervous system
    astrocytes
    glial cells
  • Question 2
    30 seconds
    Q. The smooth muscles and glands are controlled by this part of the nervous system.
    answer choices
    Somatic Nervous system
    Autonomic Nervous system
    astrocytes
    glial cells
  • Question 3
    30 seconds
    Q. A mass of nerve cells.
    answer choices
    oligodendrocytes
    ependymal cells
    neurons
    Schwann cells
  • Question 4
    30 seconds
    Q. Consists of the brain and spinal cord.
    answer choices
    Autonomic Nervous System
    Somatic Nervous System
    Peripheral Nervous System
    Central Nervous system
  • Question 5
    30 seconds
    Q. Nerves throughout the body other than the brain and spinal cord.
    answer choices
    Autonomic Nervous System
    Somatic Nervous system
    Peripheral Nervous System
    Central Nervous System
  • Question 6
    30 seconds
    Q. Cells that are found between neurons and blood vessels.
    answer choices
    oligodendrocyte
    microglial cell
    astrocyte
    ependymal cell
  • Question 7
    30 seconds
    Q. The part of the neuron that receives nerve impulses.
    answer choices
    axon
    dendrite
    cell body
    axon terminus
  • Question 8
    30 seconds
    Q. Neurons that have a single process extending from the cell body.
    answer choices
    unipolar
    bipolar
    dipolar
    multipolar
  • Question 9
    30 seconds
    Q. White matter has this insulating covering that increases the rate at which an impulse can be carried.
    answer choices
    Schwann Cell
    axon membrane
    Neurilemma
    Myelin Sheath
  • Question 10
    30 seconds
    Q. Neurons that have two processes extending from the cell body
    answer choices
    unpolar
    bipolar
    polar
    multipolar
  • Question 11
    30 seconds
    Q. The junction between two communicating neurons.
    answer choices
    synapse
    neuromuscular junction
    dendrite
    axon
  • Question 12
    30 seconds
    Q. Chemical messengers that move across the synapse.
    answer choices
    vesicles
    sodium
    potassium
    neurotransmitters
  • Question 13
    30 seconds
    Q. Groups of neurons that make hundreds of synaptic connections with each other and work together to perform a common function.
    answer choices
    ganglia
    neuronal pool
    autonomic system
    somatic system
  • Question 14
    30 seconds
    Q. Support neurons and phagocytize bacterial cells and other debris.
    answer choices
    microglia
    astrocytes
    ependymal cells
    oligodendrocytes
  • Question 15
    30 seconds
    Q. Align along axons and provide insulating layers of myelin in the brain and spinal cord.
    answer choices
    microglia 
    astrocytes
    ependymal cells
    oligodendrocytes
  • Question 16
    30 seconds
    Q. Form an epithelial-like membrane that covers specialized brain parts and form the inner linings that enclose spaces in the brain and spinal cord.
    answer choices
    microglial cells
    astrocytes
    ependymal cells
    oligodendrocytes
  • Question 17
    30 seconds
    Q. When a threshold in a neuron is reached this is achieved.
    answer choices
    threshold potential
    action potential
    resting potential
    homeostasis
  • Question 18
    30 seconds
    Q. Gaps in the myelin sheath.
    answer choices
    nodes of Ranvier
    axon endings 
    synapse
    neurotransmitters
  • Question 19
    30 seconds
    Q. Neurotransmitter that stimulates muscles to contract.
    answer choices
    endorphins
    serotonin
    acetycholine
    dopamine
  • Question 20
    30 seconds
    Q. conduct impulses from peripheral body parts to the brain or spinal cord.
    answer choices
    motor neurons
    sensory neurons
    interneurons
    microglia
  • Question 21
    30 seconds
    Q. Conduct impulses from one part of the brain or spinal cord to another part of the brain or spinal cord.
    answer choices
    motor neurons
    sensory neurons
    interneurons
    microglia
  • Question 22
    30 seconds
    Q. are multipolar and conduct impulses out of the brain or spinal cord to effectors.
    answer choices
    motor neurons
    sensory neurons
    interneurons
    microglia
  • Question 23
    30 seconds
    Q. These cells have the same function as oligodendrocytes but are found in the peripheral nervous system (PNS).
    answer choices
    microglia
    astrocytes
    ependymal cells
    Schwann cells
  • Question 24
    30 seconds
    Q. When a membrane is depolarized sufficiently that an action potential results. Approximately -55 millivolts
    answer choices
    action potential
    threshold potential
    resting potential
    transmitting potential
  • Question 25
    30 seconds
    Q. At resting potential this ion is in high concentration on the outside of the neuron membrane making the outside of the neuron positively charged.
    answer choices
    negatively charged amino acids
    potassium
    sodium
    calcium
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