What makes humans so “human”? While there are certainly many factors – spiritual, emotional, physical – that make us human, the human hand is a unique appendage that opened up amazing possibilities in our becoming human.
From our opposable thumbs to the amazing sensory receptiveness of our fingertips, the human hand is ideally sculpted for exploration and manipulation of this incredibly complex world. A study at the KTH Royal Institute of Technology in Stockholm, Sweden in 2013 determined that the human finger can find an irregularity as small as 13 nanometers, which is less than 1/1000th the thickness of a human hair. With sensory tools like that at our disposal, it’s not surprising we humans have done as well as we have!
Let’s spend a minute and look at the basic set-up of the hand.
The eight bones of the wrist are called the carpal bones. The carpal tunnel is the narrow passage through which passes all of the blood and nerve supply for the hand. You’ve probably heard of carpal tunnel syndrome. Carpal tunnel syndrome occurs when, for a variety of reasons, that passageway no longer allows for friction-free passage of the tendons, nerves and blood supply to the hand, causing pain and dysfunction.
The five long bones that stretch from your wrist to the base of your fingers are called metacarpals, and the individual bones of your fingers are called the phalanges (phalanx is singular). The muscles and tendons that move your hands and fingers are incredibly sensitive, allowing us to pick up tiny objects, while they are strong enough to lift frying pans and carry babies!
It’s amazing all that we can do with our hands! However, when we begin having pain or discomfort in our hands, it can be difficult to function in the day-to-day. If you are experiencing pain in your hands or wrists, please contact us to set up an evaluation.