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 splanchnic carries preganglionic parasympathetic fibers that innervate the hindgut and the pelvic viscera?






2. What vitamin deficiency causes a glove - and - stocking neuropathy seen in alcoholics?






3. Name the structure that enters or exits the following foramina: x Foramen ovale






4. Name the most common cause - A cold in the winter and summer






5. What percentage of the bone marrow must be composed of blast for leukemia to be considered?






6. Bloody tap on lumbar puncture






7. What is the term for recurrent and persistent pain before - after - or during sexual intercourse?






8. Is excretion greater than or less than filtration for net secretion to occur?






9. All spore formers are...






10. What is the term for RBC remnants of nuclear chromatin in asplenic patients?






11. What is the costliest health care problem in the United States?






12. What is the only way to increase maximum velocity (Vmax)?






13. Name the phase of the eukaryotic cell cycle: x Period of cellular growth (translation and transcription) after DNA synthesis






14. What three PGs are potent platelet aggregators?






15. Why is there an increase in prolactin if the hypothalamic - pituitary axis was severed?






16. Can correct mistakes - whereas RNA polymerases lack this ability.






17. Where are the tonsillar tissues?

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18. Damage to what nerve will give you winged scapula?






19. Describe the organism based on the following information: x Beta - Hemolytic Streptococcus; positive cAMP test; hydrolyzes hippurate






20. What enzyme deficiency results in darkening of the urine when exposed to air?






21. What Brodmann area is associated with x Somatosensory association cortex?






22. How far below ideal body weight are patients with anorexia nervosa?






23. In an adrenergic nerve terminal - Where is dopamine converted to NE? By what enzyme?






24. What is the most common one? - Acquired GI emergency of infancy






25. What are the three characteristics of autoregulation?






26. What benign solitary papillary growth within the lactiferous ducts of the breast commonly produces bloody nipple discharge?






27. The probability that a person with a negative test result is truly disease free refers to what value?






28. The lack of dopamine production in the substantia nigra leads to the ______________ - characteristically seen in patients with Parkinson's disease.






29. What ocular muscle x Depresses and abducts the eyeball?






30. Based on the following information - is the renal transplantation rejection acute - chronic - or hyperacute? - Months to years after transplantation; gradual onset of HTN - oliguria - and azotemia; seen as intimal fibrosis of the blood vessels and in






31. What follicular cell possesses FSH receptors and converts androgens into estradiol?






32. What area of the lymph node contains germinal centers?






33. What is the term for nonneoplastic abnormal proliferation of cell size - shape - and cellular organization?






34. Why is the apex of the lung hypoventilated when a person is standing upright?






35. What form of renal tubular reabsorption is characterized by high back leak - low affinity for substance - and absence of saturation and is surmised to be a constant percentage of a reabsorbed filtered substance?






36. What rare vasculitis has the following characteristics: males aged 40 to 60; affecting small arteries and veins; involving nose - sinuses - lungs - and kidneys; C- ANCA and autoantibodies against proteinase 3?






37. What cell of the duodenum contains high concentrations of lysozymes and has phagocytic activity?






38. What protein carries free fatty acids to the liver?






39. What form of depression is due to abnormal metabolism of melatonin?






40. What is the term for the ability of a test to measure something consistently?

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41. What condition results from a deficiency in the enzyme hexosaminidase A?






42. At what vertebral level does the common carotid artery bifurcate?






43. What is the term for a schizophrenic episode lasting longer than 30 days with full return to former functioning capacity?






44. What organism is commonly associated with a cellulitis from an animal bite?






45. What paraphilia is defined as x Deriving sexual pleasure from other peoples' pain?






46. What syndrome is associated with the following brainstem lesions? - AICA or superior cerebellar artery occlusion - resulting in ipsilateral limb ataxia - ipsilateral facial pain and temperature loss - contralateral loss of pain and temperature to the






47. Name the muscle type based on the histological features: x Actin and myosin in sarcomeres; striated; uninuclear; gap junctions; troponin:calcium binding complex; T tubules and SR forming dyadic contacts; voltage - gated calcium channels






48. Which CHO is independently absorbed from the small intestine?






49. What two substances stimulate Sertoli cells?






50. What happens to the following during skeletal muscle contraction? - Sarcomere