46.梅克氏軟骨(Meckel's cartilage)在胚胎發育過程,源自於下列何種細胞或胚層?
(A)軸側之中胚層(paraxial mesoderm)
(B)咽部之中胚層(pharyngeal mesoderm)
(C)咽部之內胚層(pharyngeal endoderm)
(D)頭部之神經嵴細胞(cranial neural crest cells)
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統計: A(233), B(122), C(32), D(820), E(0) #1034952
統計: A(233), B(122), C(32), D(820), E(0) #1034952