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The neural tube forms from the folding of the neural plate. Which
region of the neural tube is the first to close? - Answer: B
The brain is derived from which of the following: - Answer: ectoderm
, The nervous system begins as a flat neural plate that runs along the
midline from rostral to caudal. Folding is initiated with the [ Select ]
anchored to the [ Select ] and changes shape while the epidermal cells
move toward the dorsal midline. - Answer: medial hingepoint cells
notochord
Crosstalk between the __________ and ectoderm establish patterning
that forms the neural tube. - Answer: mesoderm
Which of the following defects is a severe open neural tube defect
caused by failure of rostral neural tube closure? - Answer: anencephaly
The neural tube forms from the folding of the neural plate. Which
region of the neural plate fuses together to form the dorsal neural
tube? - Answer: C
Which of the following is an occult, and not an open, neural tube
defect? - Answer: Spina bifida occulta
Folate promotes neural tube closure. On a cellular basis, it is necessary
for __________________. - Answer: nucleotide biosynthesis