Test your basic knowledge |

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 DHT turn the urogenital sinus into? estrogen?






2. What is the 'fetal period'- ie When is it?






3. What are two common findings in pyloric stenosis?






4. By when are the neuropores supposed to fuse?






5. What separates the ant 1/3 and post 2/3 of tongue?






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






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






8. Where is Wnt 7 gene produced?






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






10. From What embryonic layer are the pia and arachnoid from?






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






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






13. Where is the FGF gene produced? What is it responsible for - How does it do this?






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






15. By what week is there fetal movement?






16. what chemo drugs can cause neural tube defects in the fetus?






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






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






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






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






21. What is contained in the umbilical cord?






22. Which branchial apparatus develops into the superior parathyroids?






23. What is a syrinx? Where is it found in syringomelia? What is it associated with?






24. From What embryonic layer does the brain arise?






25. What is the Eisenmeger complex?






26. From What embryonic layer do the salivary - sweat and mammary glands arise?






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






28. what bone/cartilage and nerves are derived from branchial arch 1?






29. What is holoprosencephaly? what eye disorder does it result in?






30. From which germlayer does the thyroid develop?? From what structure exactly?






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






32. From where is amniotic fluid produced? other than electrolytes and carbs - what else does it contain?






33. When does erythropoeisis begin in the bone marow?






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






35. _____________is common in 1st born males






36. From What embryonic layer is the vagina from? testes? ovaries?






37. Only _______________________________ are associated with neural tube defects






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






39. During what week does the heart begin to beat?






40. Name two endocardial cushion defects.






41. What does the midgut form? hindgut?






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






43. What does DHT turn the labioscrotal swelling into? estrogen?






44. From which branchial derivative does the anterior 2/3 of the tongue develop?






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






46. What does the foramen ovale shunt blood from - to where? What is its remnant?






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






48. Which part of the branchial apparatus makes up membranes?






49. Which branchial apparatus makes the external auditory meatus?






50. What germ layer correlates with the branchial pouches?