The Human Machine - The Anatomical Structure & Mechanism ...
Bridgeman, George B.
INTRODUCTION IT appears to be a fixed law that the contraction of a muscle shall be toward its centre, therefore, the subject for mechanism on each occasion is so to modify the figure, and adjust the position of the muscle as to produce the motion required agreeably with this law. This can only be done by giving to different muscles a diversity of configuration suited to their several offices and to their situation with respect to the work whi...