47.牙乳頭(dental papilla)中之未分化外胚層間葉組織(undifferentiated ectomesenchyme)
中之細胞,分化成造牙本質細胞(odontoblast),主要受到下列那一種細胞之誘導作用
(induction)?
(A)內牙釉上皮細胞(inner enamel epithelial cells)
(B)外牙釉上皮細胞(outer enamel epithelial cells)
(C)中間層細胞(cells of stratum intermedium)
(D)星形網狀層細胞(cells of stellate reticulum)
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統計: A(1332), B(99), C(33), D(45), E(0) #1033262
統計: A(1332), B(99), C(33), D(45), E(0) #1033262