Cranial Nerves Functions Quiz
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Questions and Answers

Which cranial nerve is responsible for motor control of the chewing muscles?

  • Facial (correct)
  • Trochlear
  • Vagus
  • Olfactory
  • Which cranial nerve is associated with sensation of taste and motor control of facial expressions?

  • Glossopharyngeal (correct)
  • Accessory
  • Abducens
  • Vestibulocochlear
  • Which cranial nerve is responsible for motor control of neck and upper back?

  • Olfactory
  • Trigeminal
  • Abducens
  • Accessory (correct)
  • Which cranial nerve is associated with sensation in eyes, nose, forehead, and structures of the mouth?

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

    Which cranial nerve is responsible for motor control of the lateral movement of the eye?

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

    Which cranial nerve is associated with balance and hearing?

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

    How is the resting membrane potential of a neuron established?

    <p>By an excess of positive charges on the outside and negative charges on the inside</p> Signup and view all the answers

    What is the potential difference across the cell membrane called?

    <p>Membrane potential</p> Signup and view all the answers

    What is the average resting potential of a neuron in volts?

    <p>-70mV</p> Signup and view all the answers

    Which ion plays a key role in establishing and maintaining the resting membrane potential?

    <p>Potassium ion (K+)</p> Signup and view all the answers

    What is the main mechanism responsible for maintaining the resting membrane potential?

    <p>Sodium-potassium exchange pump</p> Signup and view all the answers

    What type of propagation occurs in myelinated neurons where the action potential 'jumps' from one node of Ranvier to the next?

    <p>Saltatory propagation</p> Signup and view all the answers

    What are the electrical events that occur through the membrane surfaces of neurons and other cells?

    <p>Membrane potentials</p> Signup and view all the answers

    What creates a potential difference across the cell membrane, measured in volts?

    <p>Uneven distribution of ions inside and outside the cell</p> Signup and view all the answers

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