The Nervous System Quiz
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Questions and Answers

What is the function of cerebrospinal fluid?

  • To protect the sensory organs
  • To transmit nerve signals
  • To cushion the brain and spinal cord (correct)
  • To store important information

    • Which structures are protected by the skull and backbone respectively?

  • Central nervous system and peripheral nervous system
  • Cerebrospinal fluid
  • Sensory organs and special nerves
  • Brain and spinal cord (correct)

    • How many neurons are there in the human brain?

  • 10 million
  • 1 billion
  • Less than 0.1 trillion
  • More than 0.1 trillion (correct)

    • How much does the human brain weigh approximately?

    <p>Three pounds</p> Signup and view all the answers

    Which gender possesses 6.5 times more gray matter in the brain?

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

    True or false: The spinal cord starts exactly below the medulla oblongata and extends up to the lumbar vertebrae?

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

    True or false: The spinal cord is responsible for conveying messages from the brain to the rest of the body and vice versa?

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

    True or false: Nerves inside the brain convey messages in the form of signals from the brain?

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

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