Pharmacology of the Autonomic Nervous System Quiz
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Questions and Answers

Which of the following is true about the autonomic nervous system?

  • The sympathetic system is most active during periods of emotional and physical calm
  • The parasympathetic system is most active during periods of emotional and physical calm (correct)
  • The sympathetic system dominates during periods of emotional and physical calm
  • The parasympathetic system dominates during stressful events (fear & fight)

What is the anatomical area that serves as a functional junction between preganglionic and postganglionic neurons in the autonomic nervous system?

  • Peripheral nervous system
  • Effector organ
  • Ganglia
  • Synapse (correct)

Which regions do the sympathetic nerve fibers exit from in the autonomic nervous system?

  • Cranial and sacral portions
  • Thoracic and lumbar regions (correct)
  • Cervical and thoracic regions
  • Lumbar and sacral regions

Which branch of the autonomic nervous system dominates during periods of stressful events such as fear and fight?

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

What type of receptors are alpha-1 receptors in the sympathetic nervous system?

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

Where are the preganglionic neurons located in the autonomic nervous system?

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

What are the two main branches of the autonomic nervous system?

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

What is the role of the parasympathetic nervous system?

<p>Most active during periods of emotional and physical calm (D)</p> Signup and view all the answers

What is the main function of the sympathetic nervous system?

<p>Both excitatory effects in some organs and inhibitory effects in others (D)</p> Signup and view all the answers

What is the anatomical area that serves as a functional junction between preganglionic and postganglionic neurons in the autonomic nervous system?

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

Flashcards

Parasympathetic Nervous System

The branch of the autonomic nervous system that is primarily responsible for promoting relaxation, digestion, and energy conservation. It's active when your body is at rest. Think of it as "rest and digest."

Synapse

The junction between the ends of two nerve cells, where a signal is transmitted from one cell to the other.

Sympathetic Nervous System

The branch of the autonomic nervous system that is primarily responsible for the 'fight-or-flight' response. It's active during stressful situations. Think 'stress response,'

Excitatory Receptors

The type of receptors that, upon activation by neurotransmitters, cause an increase in the activity of a cell or organ.

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Preganglionic neurons in the Autonomic Nervous System

The location of the nerve cells that send signals from the central nervous system to the autonomic ganglia.

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Sympathetic and Parasympathetic Nervous Systems

The two main divisions of the autonomic nervous system, responsible for controlling involuntary bodily functions.

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Role of the Parasympathetic Nervous System

The role of the parasympathetic nervous system is to maintain homeostasis and conserve energy.

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Function of the Sympathetic Nervous System

The sympathetic nervous system is a part of the autonomic nervous system that controls the body's response to stress.

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Synapse

The functional junction between preganglionic and postganglionic neurons in the autonomic nervous system. This is where neurotransmitters are released to communicate signals between neurons.

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