First things first. I’m not gonna be defending myself in these commentary-replies. No, I’ll just being clearing off doubts and fixing meanings which I may not have made clear in the original posts. That said, Begin.
My bad. I didn’t mean that people practicing different arts have different bone structures. From a review of what I posted, that’s the meaning that seems to have come across. What I meant was that the muscular (as if there is any significant muscle on fingers) structure differs, and the fat pockets differ based on repetitive finger movements that define different artists.
About how Holmes says that pianists have spatulated fingers, I highly disagree. That is a physical shape that comes with genes, not external habits. So do the other shapes, round, pointed and square. Although Sir Arthur was a physician by profession, I think he made a gross error in stating something such as that. But Mendel’s work was not very popular then, and I doubt any doctor of Doyle’s day even had any practical notion of genes, DNA and inheritance. So it was a common assumption that your work defines your body. While on the whole that is true, but minute things such as the shape of fingers or crooked teeth are not externally dictated. So in this case, I fully agree with Munchkin. I’ve been playing the tabla for over 6 years, since childhood, a time when your surroundings shape your body and mind. It’s this Indian classical instrument, like a finger drum. You tap on the membrane with differing amounts of force based on what pitch and tone you want to play. And it’s all rapid tapping. So the impulsive force which the tips of my fingers feel would be so great that if it was proportionally experienced by say, my skull, I’d develop a crack within no time and have a hemorrhage. Excuse the physics, but that’s how I feel it’s better explained. The point is, I still have rounded fingers, with bulges on the tip, like a mountain.
About the veins. Yes, Munchkin has pointed out the medical reason perfectly. Prolonged writing habits over time make the veins more prominent than usual, even though the skin maybe pale, or even if a person is skinny. Whether you are plump, or thin as a stick, or somewhere in between, if you write, you have veins in stark relief on the back of your hand. When you have a regular habit of writing, your body’s physiological mechanism ‘remembers’ that your fingers are used often and so more energy is supplied there when in use. (Think about an engine as a parallel). If someone is a writer, the body will effectively manage blood flow and energy supply there with regularity and constancy. If one doesn’t have the habit of writing regularly, things aren’t so well managed, and there will be a suddenness with which the body reacts, every time one writes. It’s not noticeable, but overtime, this is what begins to show.
I understand that this is an untested theory of mine, and I have yet to come across an exceptional case. Munchkin says she is an exception, but I haven’t seen her hands, so I can’t tell. So for that matter, she’s one exception against 8 (so far) cases which agree with my theory.
Also, when you write, often, the fat deposition (however less that it may be) is usually more on the part of the palm which cushions the palm while writing. There is a progressive increase in thickness of fingers from the pointer to the little finger. The first two would be relatively thinner while the other three are a bit more plump (Relatively. Relatively. Don’t give me stuff like 'my fingers are bony’. Relatively.) That’s because the last 3 fingers are more at ease than the first two, which are ever working to give shape to what you want to write.
And in case anyone is interested to know, Munchkin told me of a very interesting, (and so far effective) way to tell apart a writer and a typist by the little bulge on the side of their middle finger. If it’s pronounced, then they write. If it’s not, they’re probably more into typing.
That’s what remained to be elaborated. If anything’s left to be said, I’ll do it if I notice that I forgot something. Otherwise, case closed. (For now)