Thank you for the answer.
I beg you perdon because I made a terrible mistake: I had downloaded several years ago a huge serie of anatomical .obj files from this website:
https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html
Then I forgot about it and assumed that it had been done through the OpenAnatomy project.
Sorry for the confusion.
Its viewer also lacks a collection system and a simple way to connect the mesh to the name of the structure. It would be great to get the dicom used for this modeling and a community working to turn it more precise.