The thumb, unlike other fingers, is opposable, in that it is the only digit on the human hand which is able to oppose or turn back against the other four fingers, and thus enables the hand to refine its grip to hold objects which it would be unable to do otherwise. The opposable thumb has helped the human species develop more accurate fine motor skills. It is also thought to have directly led to the development of tools, not just in humans or their evolutionary ancestors, but other primates as well. The opposable thumb ensured that important human functions such as writing were possible.The thumb, in conjunction with the other fingers make humans and other species with similar hands some of the most dexterous in the world.
Try without using your thumb for example:
- turning your key in the ignition
- buttoning clothes or pulling up your fly
- using a tweezers (my eyebrows become Neanderthal overnight)
- signing your name
- finding the correct change
The list goes on...I know from my own stupid experience.
I chopped not a slice, but a divot, from my thumb while making soup. Yes, it was chilly herein South Florida, all of 55 degrees, and I needed to make a large pot of soup. (I swear, this Martha-mode stuff is a seasonal disorder with me)
It the knowledge of the usefulness of the thumb from one's dominant hand isn't enough, try stopping the profuse flow of blood from one with your other hand. It was rather comical, and messy. So much for my soup.
In other news, I have completed my first week taking 4 aminopyridine. The first two days were rough. My head felt like a helium balloon. I was dizzy and every nerve that ever went blinky before was in full spaz mode. I even felt blue, out of the blue, so I knew it was the introduction of this new chemical compound to my brain.
And on the third day ( of course I'm going to say it!) She rose again!
Yes, amazingly. I felt great! I walked not only without dragging a leg behind me, my gait was smooth! While sitting or in repose, I didn't experience any of those myclonic herky-jerkies, and I wasn't fatigued!
It's been a week today, and I'm still not ready to give this capsule the credit for my renewed self. It could be the weather. It could be coincidence, or as in my case (LOL)...Divine.
I shall keep you posted.
Now , I have Miss Joni Mitchell in my head.