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USMLE Embryo

Subjects : health-sciences, usmle
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 does the mullerian duct develop into? wollffian?






2. From What embryonic layer does the lens of the eye arise?






3. From where does pons form from? what else forms from there?






4. What teratogen can cause vaginal clear cell adenocarcinoma in the fetus?






5. From what region does the midbrain form from?






6. What is the mnueomonic for the mesodermal defects? What does it stand for?






7. What axis does the basal plate form? what neural system does it become?






8. When does the neural tube form and From what does it form?






9. From What embryonic layer does the spinal cord arise?






10. What are the two components of the placenta? From What do they form? which one secreted hcG?






11. What is the primitive streak? From what layer does it form?






12. What do membranous interventricular septal defect cause? What does this lead to?






13. Before birth - blood entering the LA is less than...






14. What is hypoplasia? is primordial tissue present?






15. What is the initial step to interventricular septum development? is it complete?






16. From where is the pancreas derived? the spleen?






17. From what are the umbilical arteries and veins derived from?






18. What is perinauds syndrome?






19. From What embryonic layer are the melanocytes from?






20. When is most important to take folic acid to prevent neural tube defects?






21. What is the female remnant of the gubernaculum? male remnant?






22. From What embryonic layer does the inner arise?






23. What is the kidney that functions at the interim kidney in the 1st trimester? What does it later contribute to?






24. From What embryonic layer is the kidney and the adrenal cortex from?






25. From what region of the brain does the lateral ventricles and the 3rd ventricle form?






26. What gene is produced in the zone of polarizing activity?






27. Which parts of the pancreas contribute to the head - uncinate process and main pancreatic duct?






28. What causes the increase in left atrial pressure to close the fossa ovale?






29. What teratogen can cause inhibition of intestinal folate absorption and thus neural tube defects?






30. What are two common findings in pyloric stenosis?






31. What surrounds the umbilical cord?






32. What is the leading cause of birth defects in the US? what else is this perpetrator the leading cause of?






33. What causes tetralogy of Fallot?






34. From which myotomes are muscles of the tongue derived from?






35. From What embryonic layer does the adenohypophysis arise?






36. What are the three regions of the brain (in order of cranial to caudal)?






37. What can vit A in excess cause in the fetus?






38. When does hCG secretion take place? with what event?






39. What does DHT turn the genital tubercle into? estrogen?






40. From what branchial derivative do the parafollicular cells arise?






41. What is germinal matrix hemorrhage associated with?






42. In what chromosomal disorder is horseshoe kidney commonly seen? what poles of the kidneys fuse?






43. What are the two components of the fetal component of the placenta?






44. which teratogen can cause Ebsteins anomaly in the fetus?






45. What is the allantois become? What is this duct connected to ( on both ends)?






46. From What embryonic layer do the ependymal cells arise?






47. WithIn what week does gastrulation occur? What is gastrulation?






48. What is jejunal - ileal - colonic atresia usually due to? What do you see on x ray?






49. From What embryonic layer does connective tissue and muscle arise?






50. What hormones are in charge of external genitalia development in the fetus? (in both male and female)







Sorry!:) No result found.

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