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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
    :May 02, 2024

USMLE USMLE Certifications USMLE Questions & Answers

  • Question 21:

    Which of the following is not considered a catecholamine?

    A. Dopamine

    B. Norepinephrine

    C. Serotonin

    D. Epinephrine

  • Question 22:

    The primary effect of cocaine on the nervous system is that cocaine blocks the re-uptake of ____.

    A. Monoamines

    B. Trans amines

    C. Catecholamine

    D. Monoamine oxidase

  • Question 23:

    Which of the following amino acids can function as a neurotransmitter in the CNS?

    A. Leucine

    B. Glutamic acid

    C. Lysine

    D. Valine

  • Question 24:

    Huntington's chorea has been linked with a deficiency in the amino acid ______.

    A. Lysine

    B. GABA

    C. Valine

    D. Tyrosine

  • Question 25:

    Which of the following is not considered a monoamine?

    A. Epinephrine

    B. Norepinephrine

    C. Dopamine

    D. Adenosine

  • Question 26:

    Which of the following is a regulatory protein in the cytoplasm that helps the processes at the synapse?

    A. Calmodulin

    B. Protein kinase

    C. Ligand

    D. Gap protein

  • Question 27:

    Myasthenia gravis is due to ____ receptors being blocked and destroyed by antibodies.

    A. Epinephrine

    B. Nicotinic

    C. Acetylcholine

    D. Transient

  • Question 28:

    Which of the following microorganisms has not been linked to UTI's?

    A. E. coli

    B. Pseudomonas

    C. Klebsiella

    D. Haemophilus

  • Question 29:

    Oligodendrocytes are located in the _____.

    A. PNS

    B. CNS

  • Question 30:

    Schwann cells are located in the _____.

    A. PNS

    B. CNS

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