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 (D)</p> Signup and view all the answers

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

<p>Abducens (A)</p> Signup and view all the answers

Which cranial nerve is associated with balance and hearing?

<p>Vestibulocochlear (B)</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 (D)</p> Signup and view all the answers

What is the potential difference across the cell membrane called?

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

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

<p>-70mV (A)</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+) (B)</p> Signup and view all the answers

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

<p>Sodium-potassium exchange pump (C)</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 (A)</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 (B)</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 (A)</p> Signup and view all the answers

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