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. When does organogenesis occur?






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






3. What does the mullerian duct develop into? wollffian?






4. What type of radiation is teratogenic ?






5. How does annular pancreas present in children?






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






7. Which CN allows for taste and sensation in the posterior 1/3 of the tongue? how about the very back ?






8. Where is the mothers blood located in the placenta?






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






10. What day is the chorion formed?






11. What embryological structures give rise to the SVC?






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






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






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






15. What trisomy is associated with holoprosencephaly? What teratogen?






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






17. As a horseshoe kidney ascends during kidney development - What do they get trapped under?






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






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






20. From where do the three different kidneys come from? Which is the earliest one? is it located most cranially or caudally?






21. Which branchial apparatus makes the external auditory meatus?






22. What arises from the fourth aortic arch?






23. what closes the ductus arteriousus?






24. What is the Eisenmeger complex?






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






26. which tracts are damaged first in syringomelia? What tract is preserved?






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






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






29. What is the mnueomonic for the mesodermal defects? What does it stand for?






30. What causes meconium discharge from the umbilicus?






31. From where does pons form from? what else forms from there?






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






33. what other facial defect other than cyclopia is associated with holoprosencephaly?






34. What is hypoplasia? is primordial tissue present?






35. Cleft lip is a failure of formation of the...






36. What is the kidney that functions at the interim kidney in the 1st trimester? What does it later contribute to?






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






38. What is the initial step to interventricular septum development? is it complete?






39. From What embryonic layer does the oligodendrocytes arise?






40. From What embryonic lare are the odontoblasts from?






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






42. From what region of the brain does the aqueduct form?






43. what bone/cartilage and nerves are derived from branchial arch 2?






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






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






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






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






48. From What embryonic layer does the skin dermis arise?






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






50. Name two endocardial cushion defects.