Test your basic knowledge |

USMLE Step 1 Prep

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What component of the ANS - when stimulated - results in bronchoconstriction?






2. A 20-year - old college student has fever - grey- white membranes over the tonsils - posterior auricular lymphadenitis - and hepatosplenomegaly. What is your diagnosis? What test do you order to confirm your diagnosis?






3. What is the most common one? - Stromal tumor of the ovary






4. What class of antianginal activates the NO pathway to produce endothelial vasodilation?






5. What hormone disorder is characterized by the following abnormalities in sex steroids? - LH? - and FSH?? - Sex steroids - LH - FSH ?






6. Do alpha - or gamma - motor neurons innervate extrafusal muscle fibers?






7. Which dimorphic fungus is found as Arthroconidia in desert sand of the southwestern United States (e.g. - San Joaquin Valley)?






8. What disorder is characterized by a depressed mood and a loss of interest or pleasure for more than 2 years?






9. What is the most common one? - Intraspinal tumor






10. Name the area of the cerebral cortex affected by the description of the effects - symptoms - and results of the lesion - Apathy - aggression - inability to learn new material - and memory problems






11. What direction does the primitive gut rotate? What is its axis of rotation?






12. What organism is associated with the following types of diarrhea? Diarrhea associated with raw or undercooked shellfish






13. What microaerophile is a motile gram - negative curved rod with polar flagella that causes infectious diarrhea at low doses (<500)?






14. Name the type of mutation: New codon specifies a different AA






15. Does the direct or indirect basal ganglia pathway result in a decreased level of cortical excitation?






16. What area of the brain acts as the center for contralateral horizontal gaze?






17. What complex is needed for propionyl CoA carboxylase?






18. What is the term to describe homosexuals who x Are uncomfortable with their own person and disagree with their sense of self?






19. What level of mental retardation is characterized by x Can work in sheltered workshops and learn simple tasks but need supervision?






20. What cells of the retina see in black and white and are used for night vision?






21. What component of the ANS is responsible for dilation of the blood vessels in the erectile tissue of the penis - resulting in an erection?






22. What hormone is secreted by the placenta late in pregnancy - stimulates mammary growth during pregnancy - mobilizes energy stores from the mother so that the fetus can use them - and has an amino acid sequence like GH?






23. What lower extremity nerve is described by the following motor loss? - Loss of abduction of the hip resulting in Trendelenburg gait






24. What is the major muscle used in the relaxed state of expiration?






25. What bronchogenic carcinoma is associated with an elevated level of Ca2+ - involves keratin pearls - occurs in men more than women - is associated with smoking - occurs in the major bronchi - and is seen in the central areas of the lung?






26. What are the two MCC of acute epididymitis in males? - More than 35 years old






27. Name the compartment of the mediastinum associated with the following thoracic structures: Thoracic duct






28. Which serotypes of HPV are associated with plantar warts?






29. What two post - transcriptional enzymes in collagen synthesis require ascorbic acid to function properly?






30. What paraphilia is defined as x Having a recurrent desire to expose the genitals to strangers?






31. In what cycle does glucose go to the muscle - where it is converted to pyruvate and then into alanine before being taken back to the liver?






32. What is the leading cause of school dropout?






33. What is the rate - limiting step in a conduction of a NMJ?






34. Regarding the Lac operon - for What do the following genes code? - Z gene






35. What disorder of bone remodeling results in thick - weak bones and is associated with high - output cardiac failure?






36. Are the following major or minor Jones criteria of rheumatic fever? - Elevated acute phase reactants (e.g. - ESR)






37. What day of the menstrual cycle does ovulation take place?






38. Is heparin contraindicated in pregnancy?






39. Initiates rhythmic contractions associated with labor.






40. What is the drug of choice - which inhibits oxidative phosphorylation in cestodes - for taeniasis?






41. What form of penicillin is used in the treatment of life - threatening illnesses?






42. What Freudian psyche component is described as x Reality - rationality - language basis?






43. What gram - positive anaerobic rod with branching filaments is a component of the normal flora of the mouth and female genital tract and is responsible for draining abscesses with sulfur granules in the exudates?






44. Rheumatic fever most commonly follows pharyngeal infections with what bacteria?






45. What respiratory center in the caudal pons is the center for rhythm promoting prolonged inspirations?






46. Name the stages of sleep with these EEG patterns: x Sleep spindles - K- complexes






47. Are the following conditions associated with a negative or positive nitrogen balance? - Growth






48. If you report a suspected case of child abuse and are wrong - are you protected from legal liability?






49. Which organism causes trench mouth?






50. What glycoprotein in the HIV virus is used for fusion?