How can I make a ramification with curves? I'm using curves to make a ramification because I need to model 3D veins for another bigger model, the interior of the human body. Is there any way to make a ramification with (Bézier) curves, or should this be done in a different way?
Try Sapling tree generator, which is built in newest Blender version (user preferences -> addons -> search "sapling" -> enable (tick the box) -> in 3D view Shift+A -> curve :)
Play with the settings, and I'm sure, you'll find what you want ;)