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Questions and Answers

Which division of the autonomic nervous system is primarily responsible for conserving energy?

  • Somatic division
  • Parasympathetic division (correct)
  • Sympathetic division
  • Enteric division
  • What is the primary function of the sympathetic nervous system?

  • Stimulates muscle relaxation
  • Promotes rest and digestion
  • Regulates kidney function
  • Prepares the body for fight or flight response (correct)
  • What is typically affected in Parkinson's disease?

  • Serotonin levels in the brainstem
  • Myelin sheaths in the peripheral nervous system
  • Motor neurons in the spinal cord
  • Dopamine-releasing neurons in the basal ganglia (correct)
  • In Multiple Sclerosis (MS), what happens to the myelin sheaths?

    <p>They become nonfunctional and form sclerosis</p> Signup and view all the answers

    Which of the following neurotransmitters is primarily involved in the worsening symptoms of Amyotrophic Lateral Sclerosis (ALS)?

    <p>Glutamate</p> Signup and view all the answers

    Which of the following best describes the role of proprioceptors?

    <p>Respond to stretch and inform on body position</p> Signup and view all the answers

    What physical response is associated with the activation of the sympathetic nervous system?

    <p>Increased blood flow to muscles</p> Signup and view all the answers

    Which of the following best describes the primary function of the somatic nervous system?

    <p>Controls skeletal muscle movements</p> Signup and view all the answers

    Which of the following substances can freely cross the Blood Brain Barrier?

    <p>Alcohol</p> Signup and view all the answers

    What is the role of the Pia Mater in relation to the brain and spinal cord?

    <p>It provides direct contact with the brain and spinal cord.</p> Signup and view all the answers

    Which statement best describes the composition of most nerves in the Peripheral Nervous System (PNS)?

    <p>They are mixtures of afferent and efferent fibers.</p> Signup and view all the answers

    What is the function of the cerebrospinal fluid (CSF) within the central nervous system?

    <p>Acts as a cushion for the brain and spinal cord.</p> Signup and view all the answers

    What type of fibers are rare in the Peripheral Nervous System?

    <p>Pure sensory (afferent) nerves</p> Signup and view all the answers

    Which of the following layers forms the outermost protective layer of the meninges?

    <p>Dura Mater</p> Signup and view all the answers

    Which component of the nervous system is responsible for voluntary muscle movement?

    <p>Somatic Nervous System</p> Signup and view all the answers

    Which structure assists in the formation of the Blood Brain Barrier by signaling tight junction formation?

    <p>Astrocytes</p> Signup and view all the answers

    What is the primary function of the sympathetic nervous system?

    <p>Mobilizes the body during activity</p> Signup and view all the answers

    Which of the following occurs during sympathetic activation?

    <p>Dilation of bronchioles</p> Signup and view all the answers

    What is a characteristic effect of the parasympathetic nervous system?

    <p>Bronchioles constrict</p> Signup and view all the answers

    How do neurotransmitters affect the somatic and autonomic nervous systems differently?

    <p>Somatic responses can be only stimulatory</p> Signup and view all the answers

    Which statement regarding the role of the parasympathetic division is accurate?

    <p>Conserves body energy</p> Signup and view all the answers

    Which effectors are primarily influenced by the autonomic nervous system?

    <p>Cardiac muscle and glands</p> Signup and view all the answers

    What is a function of neuroeffector junctions in the autonomic nervous system?

    <p>Allow for neurotransmitter diffusion</p> Signup and view all the answers

    In which organ does the sympathetic division NOT typically reduce blood flow during activation?

    <p>Skeletal muscles</p> Signup and view all the answers

    What effect do neurotransmitters from the autonomic nervous system have on target tissues?

    <p>Can be dual (inhibitory or stimulatory) based on receptors</p> Signup and view all the answers

    What describes the effect of the sympathetic nervous system on the liver?

    <p>Promotes glucose release</p> Signup and view all the answers

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