Based on VOXEL-MAN software and our previous work on merging acupoint information with the dataset of the male Visible Human, we have refined the segmentation method for muscles and visualized the anatomical structure of meridians. In interactive segmentation, we obtain additional information on connectivity and texture. We also apply surface fitting to track muscle contours on data slices where the threshold segmentation method is hard or impossible to apply. With these processes, the original segmentation method, mainly via threshold, is improved to deal with more complex situations. We also constructed meridians, which are supposed to be composed by groups of acupoints. For that we used the location of these acupoints and interpolation methods.