49.下列何者為牙本質開始沈積後內牙釉上皮的營養來源?
(A)造牙本質母細胞與造釉母細胞間之基底膜
(B)齒濾泡(dental follicle)中之血管系統
(C)牙釉器官(enamel organ)
(D)牙乳突(dental papilla)
答案:登入後查看
統計: A(79), B(144), C(354), D(112), E(0) #1727657
統計: A(79), B(144), C(354), D(112), E(0) #1727657
詳解 (共 6 筆)
#6165142
行為評比:
「來自enamel organ」
❤️(十分中肯 血管必須要這麼搞)
⛽️(蠻有道理的 國考書很常讀到)
?(普普通通沒啥感覺)
?(沒啥邏輯 但有一點點道理在)
?(狗屁不通不知道哪個sb考官寫的)
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3
#5499070
enamel organ裡沒血管, nutrition怎可能從enamel organ來? dentine deposit後, nutrition是從dental follicle來, 但距離太遠, 所以stellate reticulum才會collapse讓nutrition可易點進入, 不過這樣考選部也覺得是從enamel organ來真的無話可說了, 死背吧
Another feature is notable: when differentiation of the ameloblasts occurs and dentin starts forming, these cells are distanced from the blood vessels that lie outside the inner enamel epithelium within the dental papilla. Compensation for this distant vascular supply is achieved by blood vessels invaginating the outer enamel epithelium and by the loss of the intervening stellate reticulum, which brings ameloblasts closer to the blood vessels .
11
0
#6157597
這題偏扯
1
2
#6474183
蛤
0
1