A condensed rapid review pass over the highest yield embryology facts for final week review.
About this set
40 mixed cards for USMLE Step 1 Embryology. It opens with "Which germ layer forms the epidermis, CNS, and PNS?" and "Which germ layer forms the GI tract lining and respiratory epithelium?". Study it alongside the other USMLE Step 1 sets below.
40 cards · mixed cards · AI-written, checked twice. Edit anything.
- Which germ layer forms the epidermis, CNS, and PNS?
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Ectoderm- Which germ layer forms the GI tract lining and respiratory epithelium?
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Endoderm- Which germ layer forms muscle, bone, and the cardiovascular system?
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Mesoderm- The ____ induces the overlying ectoderm to form the neural plate.
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notochord- What does the notochord become in the adult intervertebral disc?
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Nucleus pulposus- Neural tube defects are most strongly linked to a deficiency of which vitamin?
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Folate (vitamin B9)- Failure of the rostral neuropore to close causes which condition?
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Anencephaly- Failure of the caudal neuropore to close causes which condition?
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Spina bifida- An elevated maternal serum AFP most commonly suggests which type of fetal defect?
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A neural tube defect (e.g., spina bifida)- A decreased maternal serum AFP is classically associated with which condition?
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Down syndrome (trisomy 21)- Neural crest cells give rise to which pigment-producing skin cell?
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Melanocytes- Neural crest cells give rise to which adrenal gland region?
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Adrenal medulla (chromaffin cells)- What gene on the Y chromosome triggers development of testes from the bipotential gonad?
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SRY gene- Which fetal duct system develops into the epididymis, vas deferens, and seminal vesicles?
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Mesonephric (Wolffian) duct- Which fetal duct system develops into the uterus, fallopian tubes, and upper vagina?
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Paramesonephric (Mullerian) duct
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