Dr Gawad Physiology Course Online Exams -sympathetic Nervous System

7 Questions | Total Attempts: 1447

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Dr Gawad Physiology Course Online Exams -sympathetic Nervous System

7 MCQs (Only one correct answer)Each MCQ: 1 mark, Total mark: 7 (you will get the results immediately with correction by the web)Passing score 60%Allowed time: 10 minGood Luck


Questions and Answers
  • 1. 
    Stimulation of the sympathetic causes :
    • A. 

      Increased gastric HCl and pepsin secretion.

    • B. 

      Generalized actions affecting many systems.

    • C. 

      Bronchoconstriction.

    • D. 

      Decreased glycogenolysis and lipolysis.

  • 2. 
    Stimulation of the cervical division of sympathetic nerves causes :
    • A. 

      Drooping of the upper eyelid.

    • B. 

      A small-sized pupil.

    • C. 

      Exophthalmos

    • D. 

      Inhibition of salivary gland secretion.

  • 3. 
    All the following about the sympathetic N.S. is true except:
    • A. 

      Its stimulation causes urine retention.

    • B. 

      It is involved in stress and emergency conditions.

    • C. 

      It has a V.C. effect on skeletal muscle bld vessels.

    • D. 

      Its stimulation increases the cardiac properties.

  • 4. 
    The sympathetic tone is most important for :
    • A. 

      Decreasing the blood flow to the gut (GIT or alimentary canal

    • B. 

      Maintaining the heart rate within normal.

    • C. 

      Keeping the fasting blood glucose level constant.

    • D. 

      Maintenance of the systemic arterial blood pressure constant.

    • E. 

      Causing bronchodilatation.

  • 5. 
    Preganglionic sympathetic nerve fibres :
    • A. 

      Are found in somatic nerves (e.g. the median and ulnar nerves).

    • B. 

      Form plexuses around blood vessels.

    • C. 

      Are present in the short ciliary nerves.

    • D. 

      Are non-medullated (non myelinated).

    • E. 

      Are found in the greater splanchnic nerves.

  • 6. 
    The sympathetic nervous system has all the following characters except:
    • A. 

      It supplies every organ in the body.

    • B. 

      It is involved more frequently in generalized actions.

    • C. 

      It is of great importance in eye mydriasis

    • D. 

      It may antagonize parasymp functions.

  • 7. 
    The sympathetic system cannot be responsible for:
    • A. 

      Constriction of the pupil.

    • B. 

      Erection of hair.

    • C. 

      Secretion of sweat glands.

    • D. 

      Dilatation of skeletal muscle blood vessels.

    • E. 

      Spleen contraction.

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