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 causes the obstruction in pyloric stenosis? treatment?






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






3. From What embryonic layer are the schwann cells from ?






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






5. Which CN accounts for the anterior 2/3 of the tongues sensation and pain? how about taste?






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






7. Where is sonic hedgehog gene produced? What axis is it responsible in patterning?






8. what happens in hydrocele?






9. From What embryonic layer are the dorsal root and celiac ganglion from?






10. By when are the neuropores supposed to fuse?






11. From What embryonic layer is the eustachian tube from?






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






13. What embryological structure gives rise to the coronary sinus?






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






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






16. What does the midgut form? hindgut?






17. In anencephaly you see...






18. What is meckel's diverticulum? What is it associated with? What does that cause?






19. What are the three results of having pathology in the aorticopulmonary septum?






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






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






22. Where is the most common ectopic thyroid tissue?






23. What is the mcc of renovascular hypertension in children? What does this predispose to?






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






25. what invaginates to form the primitive streak?






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






27. Which part of pancreas contribute to body? tail? isthmus? accessory pancreatic duct?






28. What effect does warfarin have on the fetus?






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






30. From What embryonic layer does the brain arise?






31. What is an example of a syndrome that can cause abnormal neural crest migration and thus CV abnormalities?






32. What do the arches of the branchial apparatus correlate to?






33. Which branchial apparatus develops into the thymus?






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






35. From What embryonic layer does the sensory organs of the ear arise?






36. From where does the prostate develop? seminal vesicles? fallopian tube? lower 2/3 of the vagina? ejaculatory duct? epididymis? uterus? upper 1/3 of the vagina?






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






38. What embryological structure gives rise to the trabeculated parts of the left and right ventricle?






39. From What embryonic layer do the parafollicular cells of the thyroid arise?






40. From what arches are the neural crest cells that form the aorticpulmonary septum derived?






41. What are the neural crest cells and where do they come form? where do they go?






42. What is the fate of the cervical sinuses that develop from the 2nd -4th branchial grooves?






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






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






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






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






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






48. What is the neural plate and From what does it form?






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






50. From where does the medulla form?