猩猩、黑猩猩、狒狒与人的牙釉质晶体形态的扫描电镜观察

THE COMPARISON AND OBSERVATION OF CRO-SS-SECTIONS OF THE ENEMAL COLUMNS IN THE TEETH OF PAN,GORILLA,BABOON AND HUMAN BEING BY SCANNING ELECTRON MICROSCOPE

用扫描电镜技术对猩猩、黑猩猩，狒狒和人的牙釉柱横断面作了比较观察。结果：人类的釉柱横断面呈鳞状，有一圆形的“体部”和被掩盖的“尾部”。黑猩猩和猩猩的釉柱横断面象人类的一样，也有“体部”和被掩盖的“尾部”，但“体部”为花瓣状。狒狒的釉柱横断面近似圆形，完整无“尾部”。

Comparative observations of the cross sections of the enemal columns in theteeth of the pan, gorilla, baboon and human being are performed with the scanning electronmicroscope. The morphological characteristics are as follows:The transverse section of theenemal columns in the human teeth is scale-like, with a sphere cal“body ,which covers the“tail”. The morphology of the transverse section of the enemal columns of the pan and gorilla issimilar to that of the human teeth.The“tail” of the cross section of the enemal column of thepan and gorilla is also covered by the“body”, but the shape ofthe“body”is like the flowerpetals.The whole tranverse section ofthe enemal column of the papio can be observed, but itlacks the “tail”.The shape of the cross section of the enemal column of the baboon is nearlyspherecal.