USMLE Exam Questions

Which of the following is not considered a central location of lymph nodes?

Lymphocytes that reach the thymus become _____.

Lymphocytes that do not reach the thymus become _____.

Which of the following is associated with a B cell deficiency?

Which of the following is the autoantibody for systemic lupus?

The TB skin test is an example of ______.

Which of the following types of cytokines is secreted by macrophages?

Which of the following types of immunoglobulins binds complement?

Which of the following is a key component of cytotoxic T cells?

Which of the following is not a primary target group of T cells?

Which of the following structures contains genes for enzymes and antibiotic resistance?

Which of the following is the most important structure related to microbial attachment to cells?

Which of the following is not a gram-negative bug?

Which of the following is not true related to endotoxins?

Which of the following microorganisms stain well?

Which of the following microorganisms are not matched correctly with the appropriate isolation media?

Which of the following diseases and bacteria are matched up incorrectly?

Which of the following diseases and bacteria are matched up incorrectly?

Which of the following is not true concerning Staphylococcus aureus?

Which of the following signs and symptoms is not linked to Haemophilus influenzae?

The Tsetse fly is a transmission factor for which of the following organisms?

The Ixodes tick is a transmission factor for which of the following organisms?

Chagas' disease is commonly treated with Nifurtimox and is linked to the ____microorganism.

Which of the following is not fungal related?

Which of the following is not a DNA virus?

Which of the following is not a RNA virus?

Which of the following viruses is not a double strand linear DNA virus?

Which of the following viruses is not a single strand linear RNA virus?

The Tzanck test is not used on which of the following viruses?

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

Oligodendrocytes are located in the _____.

Schwann cells are located in the _____.

Which of the following types of cells is the most common in the CNS?

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

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

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

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

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

Which of the following is not considered a monoamine?

Which of the following is not considered a catecholamine?

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

Valium has an effect on ____ to inhibit neural transmission.

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

Which of the following toxins blocks Sodium Channels?

Clostridium botulinum releases this enzyme that destroys peptide bonds.

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

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

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

Supporting cells located within the CNS are collectively called _____.

Which of the following types of cells line the ventricles and spinal cord?