Re: [生物] 97年私醫的生物問題
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: 33.在生物胚胎發育時，主要參與外胚層被誘導形成神經管(neural tube)
: 是下列何者?
: A)脊索
: B)原腸腔
: C)神經脊(neural crest)
: D)下胚層
: 這題解答給A@@?
: 我以為是C說....因為這有印象耶 而且脊索不是中胚層的嗎?
引述自 Developmental Biology Scott F. Gilbert Eighth Edition
Ch14 page 443
"The central region of trunk mesoderm is the chordamesoderm.
This tissue forms the notocord, a transient organ whose major functions
include the formation of the neural tube and establishing the anterior-
posterior body axis"
所以notocord是來自mesoderm沒錯 抱歉上面我的推文是錯的..> <
可是解答是對的 因為notocord有參與neural tube形成是對的
還有
Ectoderm-> surface ectoderm, Neural Crest,and Neural tube
Neural crest->PNS, Adrenal medulla
Neural tube->Brain ,spinal cord, Retina
給原po做個參考囉~
唉 真汗顏 虧我才剛修過發生..= =
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