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. From What embryonic layer do the ependymal cells arise?






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






3. What causes meconium discharge from the umbilicus?






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






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






6. What does DHT turn the urogenital folds into? estrogen?






7. What axis does the alar plate form? what neural system does it become?






8. From What embryonic layer do the ANS arise?






9. Which branchial derivative accounts for the posterior 2/3 of the tongue?






10. what else is the caudal regression known as? What two teratogen can cause this in the fetus?






11. what muscles are derived from branchial arch 1?






12. From What embryonic layer is aorticopulmonary septum from ?






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






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






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






16. What teratogen can cause IUGR and ADHD in a fetus? what else can this teratogen cause?






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






18. What happens in pancreas divisum? what results?






19. Which arches form the posterior 1/3 of the tongue?






20. From where to Where is the foregut derivative? midgut? hindgut?






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






22. From where is the pancreas derived? the spleen?






23. From What embryonic layer do CNS neurons arise?






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






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






26. Where does the blastocyst implant in the uterus? During what phase of the menstrual cycle?






27. From What embryonic layer does the spinal cord arise?






28. Cleft lip is a failure of fusion of ________ and ______.






29. From What embryonic layer are the serous linings of the body cavities from? for ex - peritoneum?






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






31. What part of the gut rotates around the SMA? and At what point?






32. What are the two walls of the prosencephalon and What do they become?






33. From what region do the thalami form?






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






35. Other than not having a brain - what else is a symptom of anencephaly? why? hint: think about amniotic fluid






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






37. What is the primitive streak? From what layer does it form?






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






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






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






41. What causes a patent foramen ovale?






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






43. What artery is derived branchial (aortic) arch 1?






44. What does the ductus arteriosus shunt blood away from - to where? What is its remnant?






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






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






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






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






49. What is hypoplasia? is primordial tissue present?






50. In anencephaly you see...







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests