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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 is annular pancreas associated with in infants?






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






3. Which part of the chorionic villi can make cells?






4. what drug is used to help close a PDA? what else does this drug treat?






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






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






7. What does the midgut form? hindgut?






8. in hypospadias - on which side is the abnormal opening? What causes it?






9. what bone/cartilage and nerves are derived from branchial arch 3?






10. what invaginates to form the primitive streak?






11. What is an arnold chiari II malformation? through what hole does it herniate?






12. What do the 2nd through 4th clefts of the branchial apparatus correlate to?






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






14. The notochord is...






15. From what germ layer does the primitive heart tube arise?






16. When does organogenesis occur?






17. From What embryonic layer does the epithelial linings of the oral cavity arise?






18. is epispadias or hypospadias associated with exstrophy of the bladder?






19. In both meningocele and myelomeningocele the dura...






20. What connects the thyroid to the tongue? when happens if it doesnt obliterate?






21. What congenital abnormality forms a 'double bubble' on xray?






22. From where does the ureteric bud arise? What does it give rise to?






23. What is duodenal atresia usually due to? What trisomy is it most often seen in?






24. What does DHT turn the urogenital sinus into? estrogen?






25. Which branchial derivative accounts for the sensation and taste in the posterior 2/3 of the tongue? how about the very back?






26. what muscles are derived from branchial arch 4? CN?






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






28. From what does bicornuate uterus arise? What is it associated with?






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






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






31. What is associated with only one umbilical artery?






32. From what aortic arch does the common carotid artery arise? what else arises from this arch?






33. what muscles are derived from branchial arch 3?






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






35. What teratogens can cause flipper limbs (limb defects)? What is this drug used for?






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






37. What germ layer correlates with the branchial pouches?






38. What teratogens can cause CN VIII toxicity in the fetus?






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






40. From What embryonic layer does the olfactory epithelium arise?






41. What artery is derived branchial (aortic) arch 4?






42. In order to survive tricuspid atresia - What do you need?






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






44. What is the effect of teratogens before week 3?






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






46. What is a teratogen that causes Ebsteins anomaly? What is ebsteins anomaly?

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47. What does the ureteric bud interact with and What does it induce it to become?






48. Which branchial apparatus develops into the superior parathyroids?






49. By what week is there fetal movement?






50. What happens in pancreas divisum? what results?







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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