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Nervous Tissue: The Neuron quiz #4

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  • Describe the direction of an electrical impulse as it travels through a neuron.
    An electrical impulse in a neuron starts at the dendrites, moves through the cell body (soma), and then travels down the axon as an outgoing signal.
  • Why is the axon considered unique among the parts of a neuron?
    The axon is unique because it is a long, thin extension that can be several feet long and is responsible for conducting outgoing electrical signals away from the cell body.
  • What is contained within the cell body (soma) of a neuron, and what is its role?
    The cell body (soma) contains the nucleus and most of the cell's organelles, serving as the metabolic and genetic center of the neuron.
  • What are the three main structural parts of a neuron?
    The three main structural parts of a neuron are the dendrites, the cell body (soma), and the axon.
  • What is the primary function of dendrites in a neuron?
    Dendrites receive incoming electrical signals and lead them into the cell body.
  • What does the cell body (soma) of a neuron contain and what is its role?
    The cell body contains the nucleus and most of the cell's organelles, serving as the metabolic and genetic center of the neuron.
  • Why is the axon considered unique among the parts of a neuron?
    The axon is unique because it is a long, thin extension that can be several feet long and is responsible for conducting outgoing electrical signals away from the cell body.
  • Describe the direction of an electrical impulse as it travels through a neuron.
    An electrical impulse in a neuron starts at the dendrites, moves through the cell body (soma), and then travels down the axon as an outgoing signal.
  • What mnemonic can help you remember the direction of signal flow in a neuron?
    Signals 'enter' via the 'dendrites' (both have 'en'), and the axon takes the signal 'away' (both have 'a').
  • What happens to the electrical signal after it travels down the axon?
    After traveling down the axon, the electrical signal is transmitted to the next neighboring neuron or to a muscle cell.
  • What part of a neuron receives messages from other neurons?
    The dendrites receive messages from other neurons.
  • Which part of the neuron is responsible for receiving information from other neurons?
    The dendrites are responsible for receiving information from other neurons.
  • What is the basic functional unit of the nervous system?
    The neuron is the basic functional unit of the nervous system.
  • Which part of the neuron receives signals from other neurons?
    The dendrites receive signals from other neurons.
  • Which part of the neuron receives messages from other neurons?
    The dendrites receive messages from other neurons.
  • What is the function of the soma in a neuron?
    The soma, or cell body, contains the nucleus and most of the cell's organelles.
  • Which part of the neuron receives information?
    The dendrites receive information.
  • What part of a neuron sends messages?
    The axon sends messages.
  • What is the function of the axon terminal in a neuron?
    The axon terminal transmits outgoing signals to other cells.
  • Which part of the neuron receives information?
    The dendrites receive information.
  • Which part of the neuron receives messages from other neurons?
    The dendrites receive messages from other neurons.
  • What structural features does a bipolar neuron have?
    A bipolar neuron has one axon and one dendrite.
  • Which part of the neuron receives messages?
    The dendrites receive messages.
  • What is the function of a multipolar neuron?
    A multipolar neuron has multiple dendrites and one axon, allowing it to integrate information from many sources.
  • What is the function of dendrites in a neuron?
    Dendrites receive incoming electrical signals.
  • What is the function of the axon in a neuron?
    The axon conducts outgoing electrical signals.
  • What connective tissue sheath wraps the axon of a neuron?
    The myelin sheath wraps the axon of a neuron.
  • What is the function of the soma in a neuron?
    The soma contains the nucleus and most of the cell's organelles.
  • What is the function of the axon in a neuron?
    The axon conducts outgoing electrical signals.
  • What does the axon of a neuron do?
    The axon conducts outgoing electrical impulses away from the cell body.
  • What is the function of the myelin sheath in a neuron?
    The myelin sheath insulates the axon and increases the speed of electrical signal transmission.
  • Which part of the neuron receives messages from other cells?
    The dendrites receive messages from other cells.
  • What does the axon terminal do in a neuron?
    The axon terminal transmits outgoing signals to other cells.
  • What is the definition of the axon terminal in neuron anatomy?
    The axon terminal is the end portion of the axon that transmits signals to other cells.
  • What are three main parts of a neuron?
    The three main parts of a neuron are dendrites, soma (cell body), and axon.
  • What is the function of dendrites in a neuron?
    Dendrites receive incoming electrical signals.
  • What is the function of the axon in a neuron?
    The axon conducts outgoing electrical signals.
  • What is the function of a neuron?
    A neuron generates and conducts electrical impulses.
  • Which part of the neuron receives signals from other neurons?
    The dendrites receive signals from other neurons.
  • How many axons does a typical neuron have?
    A typical neuron has one axon.