Dr Gawad Physiology Course Online Exams - Lecture 4 Exam (Parasympathetic Nervous System)

7 Questions | Total Attempts: 114

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Dr Gawad Physiology Course Online Exams - Lecture 4 Exam (Parasympathetic 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. 
    About the vagus nerve, all the following is true except: 
    • A. 

      It contains afferent and efferent fibres.

    • B. 

      It contains parasympathetic pregang fibres.

    • C. 

      It produces micturition.

    • D. 

      It causes increased peristaltic movement of the intestinal wall.

  • 2. 
    Stimulation of the pelvic nerve (sacral autonomic) produces :
    • A. 

      Relaxation of the wall of rectum and contraction of the internal anal sphincter.

    • B. 

      V.C. of the blood vessels in the external genitalia causing erection of penis.

    • C. 

      Contraction of the bladder wall and relaxation of the internal urethral sphincter.

    • D. 

      Contraction of smooth muscles in the male sexual passages causing ejaculation.

    • E. 

      Relaxation of the external urethral and anal sphincters.

  • 3. 
    Concerning the pelvic nerve, all the following is true except
    • A. 

      It is the nerve of erection (= nervus erigenes).

    • B. 

      It is motor to the urinary bladder and distal half of the large intestine.

    • C. 

      It is inhibitory to both the internal anal and urethral sphincters.

    • D. 

      It has no postganglionic nerve fibres.

  • 4. 
    The parasympathetic nerves :
    • A. 

      Are important in emergency conditions.

    • B. 

      Play important functions in the skin and skeletal muscles.

    • C. 

      Tend to have longer postganglionic fibres than pregang fibres.

    • D. 

      Are catabolic in their actions.

    • E. 

      Generally exert opposite effects to those of the sympathetic nerves.

  • 5. 
    An injury to the first 4 sacral segments of the spinal cord produces :
    • A. 

      Hyperglycaemia.

    • B. 

      V.D. in the cutaneous blood vessels.

    • C. 

      Disturbance of sweat secretion.

    • D. 

      Lack of erection of the penis in males and clitoris in females.

    • E. 

      Relaxation of the internal anal and urethral sphincters.

  • 6. 
    The functions of Parasympathetic innervations to the salivary glands is: 
    • A. 

      V. C. and secretion.

    • B. 

      V.D. and secretion.

    • C. 

      V.D. and inhibition of secretion.

    • D. 

      Secretion of scanty viscous saliva.

  • 7. 
    Which of the following may be produced by parasympathetic stimulation
    • A. 

      Acceleration of the heart.

    • B. 

      Relaxation of the GIT wall

    • C. 

      V.D. of coronary artery.

    • D. 

      Dilatation of the pupil.

    • E. 

      Contraction of the urinary bladder wall.

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