The real muscular part of the thumb is in the palm part of thumb (or is it the thumb part of the palm). Tendons extend from the muscles to the proximal and distal phalanges (bones) of the thumb. The end of the thumb should not bulk up with muscle tissue.
The real muscular part of the thumb is in the palm part of thumb (or is it the thumb part of the palm). Tendons extend from the muscles to the proximal and distal phalanges (bones) of the thumb. The end of the thumb should not bulk up with muscle tissue.