Mini Mid1 (CNS)

21 Questions

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CNS Quizzes & Trivia

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Questions and Answers
  • 1. 
    Duct of parotid gland pierce which one of the following muscles
    • A. 

      Orbicularis oculi

    • B. 

      Sternomastoid muscle

    • C. 

      Buccinator muscle

    • D. 

      Orbicularis oris

  • 2. 
    • A. 

      It is highly vascular so it is the most dangerouse layer

    • B. 

      It is the second layer of the scalp from outside and the 4th from inside

    • C. 

      Bleeding of this layer may lead to black eye

    • D. 

      Contain occipitofrontalis muscle

  • 3. 
    All of the following muscles share in the boundaries  or the floor of the posterior triangle except
    • A. 

      Scalenus medius

    • B. 

      Sternothyroid

    • C. 

      Trapizius

    • D. 

      Levator scapulae

  • 4. 
    One come with a deep cut in his  side of the neck" It's a very dangerous site as it contains all the following except "
    • A. 

      External jugular vein

    • B. 

      Subcalvian blood vessels

    • C. 

      Retromandibular vein

    • D. 

      Occipital artery

  • 5. 
    All of the following are correct about facial artery except
    • A. 

      It is a branch of external jugular artery

    • B. 

      Angular artery is one of its branches

    • C. 

      Has tortous course and run obliquely in the face

    • D. 

      Facial artery is lateral to faciel vein

  • 6. 
    Diaphragma sellae is pierced by one of the tributaries of cavernous sinuses
    • A. 

      True

    • B. 

      False

  • 7. 
    All of the following  are not correct about external jugular vein except
    • A. 

      It is the only tributary of subclavin vein

    • B. 

      It descend deep to sternomastoid muscle

    • C. 

      Anterior facial vein is one of its tributaries

    • D. 

      Dangerous site of external jugular vein is about 1cm above the clavical

  • 8. 
    All the skin of the face is supplied by trigeminal veinthis statement is 
    • A. 

      True

    • B. 

      False

  • 9. 
    Each cavernous sinus communicate  with all the following except 
    • A. 

      Other covernous sinus

    • B. 

      Pharyngeal plexus

    • C. 

      External jugular vein

    • D. 

      Facial vein

  • 10. 
    Concerning catecholamines ; the true statement is
    • A. 

      Include substance P

    • B. 

      Ca+ influx stimulates their exocytosis at the synaptic cleft

    • C. 

      Include acetylcholine

    • D. 

      Act as mediators or hormones*

  • 11. 
    VMA is 
    • A. 

      The enzyme that catalyzes methyl group

    • B. 

      The metabolite product of epinephrine

    • C. 

      The Enzyme that deaminate monoamine

    • D. 

      Non of the above

  • 12. 
    All of the following are correct about adrenal medulla except
    • A. 

      It is the only sympathatic organ that is supplied directly by preganglionic fiber

    • B. 

      During stress it increases the secretion of adrenalin and nor adrenalin

    • C. 

      The neurons , supply it secrete acetyl choline in the synaptic cleft

    • D. 

      Non of them

  • 13. 
    The centre of somatic reflex arc is ...... And the receptor of the autonomic reflex arc is .....
    • A. 

      Anterior Horn cell , skin

    • B. 

      Lateral horn cell , skin

    • C. 

      Lateral horn cell , viscus

    • D. 

      Anterior horn cell , viscus

  • 14. 
    Acetylcholine is secreted in all the following sites (except)
    • A. 

      Autonomic ganglia

    • B. 

      Between postganglionic and GIT Smooth muscles membrane

    • C. 

      MEP

    • D. 

      Between postganglionic and sweat glands membrane

  • 15. 
    Orbelli phenomenon occurs due to
    • A. 

      Exophthalmos

    • B. 

      Glycogenolysis

    • C. 

      Erection of piloerector muscle

    • D. 

      Vasoconstriction of skeletal muscles blood vessels

  • 16. 
    All the following includes effects of the valgus nerve except
    • A. 

      Motor to GIT smooth muscles

    • B. 

      Secretory to liver

    • C. 

      Myosis

    • D. 

      Inhibition of heart properties

  • 17. 
     Sympathetic neurons originate from
    • A. 

      Thoracic (1-12)

    • B. 

      Sacral (2-4)

    • C. 

      Lumbar (1-3)

    • D. 

      A&C

    • E. 

      C&B

  • 18. 
    Collateral ganglia is the site of relay for the preganglionic fibers which are always very long 
    • A. 

      True

    • B. 

      False

  • 19. 
    Sympathatic nervous system affect both male and female sexual organes ; this statement is
    • A. 

      True

    • B. 

      False

  • 20. 
    The false one about Parasympathetic functions is
    • A. 

      Defeacation

    • B. 

      Diuresis

    • C. 

      Digestion

    • D. 

      Exophthalmos

  • 21. 
     All the following are activities of the sympathetic system except
    • A. 

      Mydrasis

    • B. 

      Vasoconstriction to coronaries

    • C. 

      Inhibitory to smooth muscles of git , bronchi , urinary bladder , gall bladder

    • D. 

      Ejaculation of semen