One of the best options provided by Blender for the visualization of a complex system as the human anatomy is its collection system.
By default, when an object is selected, 'Shift+G' opens a menu with a bunch of options; one of these is called 'Collections' and opens a menu containing all the folders in which the object has been stored.
The shortcut files added in the zipped file shared on this site; once installed with:
Edit>Preferences>Keymap>Import>and selecting 'Anatomy-shortcuts.py' where it is
allows to access directly to all its collections through a simple RMB (Right Mouse Button), and to select immediately all the other objects that are stored in this collection.
In order to keep the Terminologia Anatomica very clean (avoiding to show the same object in several collections-which is the very interest of this collection system also known as a rhizomatic organization), hidden collection have been created; the collections are duplicated with a discrete ' for suffix; they are hidden in the Outliner but can be reached through this 'Shift+G>Collection' by default, and a simple 'RMB' when the shortcuts have been imported.