Cranial Nerves and Functions Quiz
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Questions and Answers

Which cranial nerve is responsible for motor control of the chewing muscles and sensation in the eyes, nose, forehead, and structures of the mouth?

  • Olfactory
  • Trigeminal (correct)
  • Abducens
  • Trochlear

Which cranial nerve is associated with the sensation of taste and motor control of facial expressions, tear gland, and salivary glands?

  • Facial (correct)
  • Trochlear
  • Olfactory
  • Vagus

Which cranial nerve is specifically responsible for balance and hearing?

  • Glossopharyngeal
  • Accessory
  • Vestibulocochlear (correct)
  • Vagus

Which cranial nerve is involved in motor control of the neck and upper back?

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

Which cranial nerve is connected to the sensation of taste and motor control of pharyngeal muscles for swallowing?

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

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

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

How is the resting membrane potential established and maintained?

<p>By the exchange of sodium and potassium ions through the sodium-potassium exchange pump (A)</p> Signup and view all the answers

What is the potential difference across the cell membrane called?

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

What type of potential occurs when a stimulus produces a change in membrane potential?

<p>Graded potential (C)</p> Signup and view all the answers

What is the average resting potential of a neuron?

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

What does the resting potential of a neuron signify?

<p>The state of readiness for generating and transmitting electrical impulses (B)</p> Signup and view all the answers

Which structure is responsible for the generation and propagation of an action potential?

<p>Voltage-gated ion channels (C)</p> Signup and view all the answers

What is the role of synaptic vesicles in synaptic activity?

<p>They regulate the release of neurotransmitters into the synaptic cleft (B)</p> Signup and view all the answers

Which event involves the transfer of electrical events through their membrane surfaces?

<p>Communication between cells (A)</p> Signup and view all the answers

What is responsible for the uneven distribution of charges known as a potential difference?

<p>Movement of leak channels (D)</p> Signup and view all the answers

What are the primary ions involved in establishing and maintaining the resting membrane potential?

<p>Sodium and potassium ions (A)</p> Signup and view all the answers

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