Autonomic Nervous System Chapter 15: Divisions and Functions
18 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which part of the brain is responsible for regulating autonomic and endocrine function?

  • Hypothalamus (correct)
  • Limbic lobe
  • Medulla
  • Queen Amygdala

What is the primary effect of nicotine on the autonomic nervous system?

  • Causes vasodilation
  • Increases sympathetic tone (correct)
  • Increases parasympathetic activity
  • Decreases blood pressure

Which drug category enhances adrenergic function by binding to receptors and increasing norepinephrine production and release?

  • Parasympathomimetic drug
  • Sympathomimetic drug (correct)
  • Nicotine
  • Sympatholytic drug

What is the role of the medulla in the autonomic nervous system?

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

In which part of the brain is the limbic lobe located?

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

What is the effect of a sympatholytic drug on the autonomic nervous system?

<p>Interrupts sympathetic activity (A)</p> Signup and view all the answers

What is the second signaling molecule in the adrenergic synapse?

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

Which receptors does norepinephrine bind to in the adrenergic synapse?

<p>Alpha and beta adrenergic receptors (C)</p> Signup and view all the answers

What type of reflex is afferent branch into the spine or brain?

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

What does the autonomic system use to react to stretch stimuli in the aorta and carotid arteries?

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

Which nervous system has a short reflex based on distention of the stomach?

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

Without the parasympathetic signal, what would the heart rate be?

<p>$100$ bpm (D)</p> Signup and view all the answers

Which division of the autonomic nervous system is responsible for the 'fight or flight' response?

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

Where do sympathetic signals originate from in the thoracolumbar system?

<p>Thoracic and superior lumbar nerves (D)</p> Signup and view all the answers

What type of fibers are postganglionic fibers in the sympathetic division?

<p>Long, unmyelinated (A)</p> Signup and view all the answers

Which ganglia are part of the enteric nervous system in the sympathetic division?

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

What is the function of the intramural ganglia in the parasympathetic division?

<p>To be on or near the target effector (C)</p> Signup and view all the answers

What is the characteristic of preganglionic fibers in the parasympathetic division located in the brain?

<p>Short, myelinated (A)</p> Signup and view all the answers

More Like This

Autonomic Nervous System Overview
10 questions
Autonomic Nervous System Quiz
10 questions
Use Quizgecko on...
Browser
Browser