Development of the Nervous System
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14 questions
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- Q1Which of the following weeks yields the greatest susceptibility to teratogenesis?Wks 3-8Wks 9-12Wks 13-14Wks 0-230s
- Q2Which structure, formed in week 3 of the embryonic period, serves as the basis for the axial skeleton and eventually becomes the nucleus propulsus?NotochordPrimitive pitPrimitive nodeTrilaminar disc30s
- Q3Sclerotomes is the part of the somite that gives rise to all of the following except which?TendonsCartilageEpidermisBone30s
- Q4Damage to what trilaminar germ disc layers or part may result in CNS and/or PNS malformation?EctodermMesodermEpidermEndoderm30s
- Q5Failure of the posterior neuropore to close may result in which condition?NeurulationTethered cordArnold-Chiari malformationSpina bifida30s
- Q6Differentiation of the neural tube into the basal plate eventually gives rise to all of the following except which?HypothalamusRetinaBasal nucleiMotor neurons30s
- Q7During the pre-embryonic period (0-2 wks) which structure attaches to the uterine wall?EpiblastEmbryoblastHypoblastBlastocyst30s
- Q8Which of the following cells is responsible for the formation of the ectoderm, mesoderm, and endoderm?EpithelialHypoblastHyperblastEpiblast30s
- Q9Parenchyma of the liver, epithelial lining of the urinary bladder, and epithelial lining of the tympanic cavity are all formed from which of the following structures?EctodermEndodermMesodermNotochord30s
- Q10Which of the following may help prevent dysraphic effects?Vitamin CFolic AcidIncrease protein intakeLactic Acid30s
- Q11A patient presenting with a form of spina bifida cystica that affects the meninges, spinal cord, and CSF would have which of the following conditions?OccultaMeningomyeloceleMeningoceleArnold-Chiari Malformation30s
- Q12Damage to the basal plate as it develops may lead to issues with which of the following structures?RetinaCerebral CortexThalamusBasal Nuclei30s
- Q13Myeloschisis involves the inadequate closure of what structure?Arachnoid villiAnterior neuroporePosterior neuroporeCerebellar vermis herniation30s
- Q14Arnold-Chiari malformation can be characterized by all of the following EXCEPT which?Defect that involves the posterior neuroporeCerebellar vermis herniationMay yield hydrocephalyMay yield syringomyelia30s