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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 causes the transposition of the great vessels? What does it result in?






2. From where does the pulmonary arteries and the ductus arteriosus arise?






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






4. What causes persistent Truncus Arteriosus? What does it result in?






5. By what week is there fetal movement?






6. What hormone is hcG structurally similar too?






7. What is omphalocele? In What trisomies is it seen?






8. For what reason do hypospadias need to be fixed?






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






10. To what germ layer does the branchial pouches correlate to?






11. What components do the mesoderm of the branchial arches give rise to?






12. With the first breath the infant take - pulmonary vasculature resistance _______ which causes an increase in left atrial pressure






13. Where is erythropoeisis in the weeks 3-8 of fetal development? Where does it occur after that? until when?






14. Does malformation occur during or after the embryonic period? is it due to an extrinsic or intrinsic disruption?






15. From what region of the brain does the fourth ventricle form?






16. What is congenital pharyngocutaneous fistula? and How does it occur?






17. What is DiGeorge syndrome and What does it result in?






18. What teratogen can cause IUGR and ADHD in a fetus? what else can this teratogen cause?






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






20. From where does the medulla form?






21. What causes the obstruction in pyloric stenosis? treatment?






22. What type of blood do umbilical veins carry? From where to where?






23. What is used to keep the PDA open?






24. What embryonic structure gives rise to the ascending aorta? what else does it give rise to?






25. Where is the most common ectopic thyroid tissue?






26. What embryological structure gives rise to the trabeculated part of the left and right atrium?






27. What is perinauds syndrome?






28. Name a syndrome cleft palate is often seen in






29. What separated myometrium of the uterus from the blastocyst?






30. What artery is derived branchial (aortic) arch 3?






31. What type of - amnios does bilateral agenesis form? What three symptoms does this cause?






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






33. From where does the signal come from to suppress paramesonephric ducts? what stimulates development of the mesonephric ducts?






34. What two cavities also form during the second week?






35. what results if they dont? What can increase the risks of this?






36. From What embryonic layer is the spleen from?






37. The inner layer of the chorionic villi...






38. During what week do the limbs begin to form?






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






40. From What embryonic layer do CNS neurons arise?






41. What embryologic structure gives rise to the smooth outflow tracts of the ventricles? what else does it give rise to?






42. From what aortic arch does the stapedial artery arise? the hyoid?






43. What is annular pancreas associated with in infants?






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






45. What teratogens can cause renal damage in the fetus?






46. When does erythropoeisis begin in the bone marow?






47. From What embryonic layer does the gut tube epithelium arise?






48. How many components are there to the placenta? What are they called?






49. From what region does the cerebral hemisphere form?






50. The spinal cord is made from...







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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