Sympathetic Nervous System and Ganglia Organization Quiz
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Questions and Answers

What type of nervous system rapidly sends signals to all organs of the body with just one input?

  • Autonomic nervous system
  • Parasympathetic nervous system
  • Somatic nervous system
  • Sympathetic nervous system (correct)

What are the two types of membrane potentials discussed in the text?

  • Active potential and passive potential
  • Static potential and changing potential
  • Resting potential and action potential (correct)
  • On potential and off potential

What is used to measure membrane potentials, according to the text?

  • Watts (W)
  • Microvolts (µV)
  • Millivolts (mV) (correct)
  • Kilovolts (kV)

What is the significance of the resting potential and action potential in encoding neural signals?

<p>Essential for encoding information (C)</p> Signup and view all the answers

What does a neuron's membrane potential depend on, as stated in the passage?

<p>Signals from other neurons (D)</p> Signup and view all the answers

What is an analogy used in the text to explain the behavior of resting potential and action potential?

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

What is the membrane potential when the charge inside the cell is equal to the charge outside the cell?

<p>0 mV (C)</p> Signup and view all the answers

What is the term for the process where the membrane potential becomes more negative due to positive ions leaving the cell?

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

What is the approximate membrane potential at the peak of the action potential?

<p>+30 to +40 mV (C)</p> Signup and view all the answers

What is responsible for the slower resetting of the membrane potential back to rest?

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

At what point does the falling membrane potential stop?

<p>When it reaches -80 mV (A)</p> Signup and view all the answers

What is the purpose of the sodium-potassium pump during an action potential?

<p>To maintain the resting potential (D)</p> Signup and view all the answers

What triggers the action potential in sensory neurons in the retina?

<p>Light or darkness (A)</p> Signup and view all the answers

What causes neurons in the inner ear to fire action potentials?

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

What are the two main types of cells in the brain?

<p>Neurons and glial cells (C)</p> Signup and view all the answers

What is the function of glial cells in the nervous system?

<p>They prevent infection and assist in the formation of neural networks (C)</p> Signup and view all the answers

What is the focus of most of this resource guide?

<p>The central nervous system (A)</p> Signup and view all the answers

How does the action potential wave continue in the forward direction only?

<p>Only the voltage-gated sodium channels in front of the wave can be opened (C)</p> Signup and view all the answers

What happens when subjects put on the prism goggles initially?

<p>Subjects throw the balls too far to the right of the target (A)</p> Signup and view all the answers

How does the cerebellum help with motor control?

<p>The cerebellum acts as a feedback control system (C)</p> Signup and view all the answers

Which of the following is a characteristic of memory?

<p>Memory requires encoding of context (A)</p> Signup and view all the answers

What happens when patients with cerebellar damage put on prism goggles?

<p>They never improve their accuracy (D)</p> Signup and view all the answers

What happens when prism goggles are removed from subjects with normal cerebellar function?

<p>They throw the balls too far to the right of the target (B)</p> Signup and view all the answers

What part of the brain contains more than half of its neurons?

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

What is the primary function of the semicircular canals, utricle, and saccule structures?

<p>To maintain balance and spatial awareness (A)</p> Signup and view all the answers

What protects the inner ear structures?

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

What is the oval window?

<p>A flexible membrane in the cochlea (B)</p> Signup and view all the answers

What happens to the liquid pressure wave in the cochlea?

<p>It travels down the spiral length of the fluid-filled cavities (D)</p> Signup and view all the answers

How many fluid-filled cavities are inside the cochlea?

<p>3 (A)</p> Signup and view all the answers

What are the names of the three fluid-filled cavities in the cochlea?

<p>Scala vestibuli, scala media, and scala tympani (B)</p> Signup and view all the answers

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