The first knuckle on your finger is typically considered to be the knuckle closest to your hand, where the finger meets the palm.
A joint in the finger
Lots of things. A standard way to measure one inch is to use the second knuckle of your index finger. (The first knuckle would be defined as from the tip of your finger to your knuckle, then the second would be from that knuckle to the next.)
knuckle
Well . . . I'm missing a knuckle on my ring finger, it functions normally. My ring finger is shorter than my index finger and it's shorter Than the ring finger on my right hand. If you have the same prob I can tell you why. Your finger is shorter because you have a knuckle, it's just pushed back into your hand. Look real close. Plus my finger is just a little fatter than the other finger.
I'm missing a knuckle on my left hand, it's my ring finger. One day I put my hand into a fist and I noticed there was no knuckle. My hands functions normally but there's just a gap where my knuckle is supposed to be. Also when I put my hands together the ring finger is shorter than the ring finger on my right hand. I've never hurt my hand before!
If it does your special!
The phalanges bones on either side of the joint.
Using the knuckle of your index finger.
The length of the end of your little finger, between the tip and the last knuckle.
Using the knuckle of your index finger
Fourteen. 3 in each finger and 2 in your thumb