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United States Medical Licensing Examination

Exam Details

  • Exam Code
    :USMLE
  • Exam Name
    :United States Medical Licensing Examination
  • Certification
    :USMLE Certifications
  • Vendor
    :USMLE
  • Total Questions
    :622 Q&As
  • Last Updated
    :

USMLE USMLE Certifications USMLE Questions & Answers

  • Question 11:

    Which of the following cranial nerves is not directly related to the eye?

    A. II

    B. III

    C. VI

    D. VII

  • Question 12:

    Which of the following is not considered a type of synapse?

    A. Dendrodendritic

    B. Axosomatic

    C. Axoaxonic

    D. Denoaxonic

  • Question 13:

    The progression of a nerve impulse with the nodes of Ranvier is called _______.

    A. Saltatory conduction

    B. Transmission

    C. Unmyelinated conduction

    D. Relative conduction

  • Question 14:

    Supporting cells located within the CNS are collectively called _____.

    A. Neuroglia

    B. Astrocytes

    C. Perikaryon

    D. Satellite cells

  • Question 15:

    Which of the following toxins blocks Sodium Channels?

    A. Strychnine

    B. Neostigmine

    C. Tetrodotoxin

    D. Curare

  • Question 16:

    Clostridium botulinum releases this enzyme that destroys peptide bonds.

    A. Amylase

    B. Endopeptidases

    C. Exopeptidases

    D. Protein kinase

  • Question 17:

    Multiple sclerosis is a disease that attacks the _______ of neurons in the CNS.

    A. Myelin sheaths

    B. Axon terminals

    C. Sodium channels

    D. Nicotinic receptors

  • Question 18:

    Excessive polarization due to GABA is created due to the opening of ____ channels.

    A. Ca++

    B. Cl-

    C. K+

    D. Na+

  • Question 19:

    Valium has an effect on ____ to inhibit neural transmission.

    A. Epinephrine

    B. Norepinephrine

    C. GABA

    D. Dopamine

  • Question 20:

    The drug ____ blocks the reuptake of serotonin into presynaptic axons.

    A. Prozac

    B. Valium

    C. Xanax

    D. Deprenyl

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