Conversation so far:
does the ring finger have a direct vein to the heart
The vena amoris does not exist. The vasculature in your hands is pretty much all the same, and there isn't one vein in your hands linked directly to the heart.
where did the belief of the vena amoris originate
The belief originated in ancient Egyptian times and influenced the modern wedding ring custom in the Western part of the world.

Question: what does the name mean
Self-contained rewrite: what does vena amoris mean