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 are markers for neural tube defects in the amniotic cavity? CSF?






2. What are two common findings in pyloric stenosis?






3. Which branchial apparatus develops into the thymus?






4. what closes the interventricular foramen?






5. From where did a branchial cleft cyst arise if it found?






6. Gastroschisis is extrusion of abdominal contents out of abdominal folds ___________ by peritoneum






7. What day is the chorion formed?






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






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






10. From What embryonic layer does bone of the skulls arise?






11. Cleft palate is a failure of formation of the...






12. What embryological structures give rise to the SVC?






13. What does the midgut form? hindgut?






14. Which branchial apparatus develops into the inferior parathyroids?






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






16. What is Treacher Collins syndrome? What is the result?






17. What is the Eisenmeger complex?






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






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






20. what muscles are derived from branchial arch 3?






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






22. what separates the atria from the ventricles?






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






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






25. What effect does warfarin have on the fetus?






26. From What embryonic layer do the astrocytes arise?






27. What is the notochord? What does the notochord later become?






28. How do you differentiate a thyroglossal duct cyst from a persistent cervical sinus?






29. From What embryonic layer is the bladder and urethra from?






30. What is the most common autopsy finding in brains of premature infants?






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






32. What components do the neural crest cells of the branchial arches give rise to?






33. What are the clinical symptoms that present with syringomelia?






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






35. From What embryonic layer are the melanocytes from?






36. From What embryonic layer is the spleen from?






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






38. From where does the medulla form?






39. The spinal cord is made from...






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






41. What causes tetralogy of Fallot?






42. Which branchial derivative creates the epithelial lining of the palatine tonsils?






43. By what week is the neural tube supposed to be closed? when did it start forming?






44. Which is more common - epispadias or hypospadias?






45. What axis is Wnt 7 responsible for developing?






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






47. Which cranial nerve innervates the motor function of the tongue?






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






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






50. what week do the genitalia start to have male/female characteristics? What trimester is that?