Yeah, no muscle in fingers. Only tendon. Tendon is like a rope connecting muscle to bones.
The muscles that pull your finger's tendon are in the palm or forearm.
What you think as not bone nor skin are fats I believe.
Man, the feels... ._____.
Reminds me when I went to visit my very old grandpa. He seems a bit weak, but healthy for his age.
A day after I went back home, I got news he died of old age last night.