Methods: Ultrastructural morphology and quantitative changes of left atrium and left ventricle of male rats were observed by electron microscope.
方法：取健康雄性大鼠，电镜观测左心房和左心室细胞超微结构的形态和定量变化。
2
Objective To develop a morphology research on the quantitative evaluation indexes for skin aging of the dorsal hand.
目的：开展手背部皮肤老化形态学定量评价指标的研究，为客观评价皮肤老化提供手段。
3
Conclusion the combination of ct and quantitative ct can accomplish the unity of morphology and function, thus offer more diagnostic clues and make the diagnosis perfect.