Graphics Reference
In-Depth Information
figure moves. Consider a dog with long, floppy ears. The dog does not have
the ability to control the ears independently of the rest of its body (apart
perhaps from twitching the base of the ear by flexing the attached muscle).
The ears do not possess the potential for independent movement. When this
dog begins a very fast run, the head moves up and down. As the head moves
(a)
(b)
FIG 3.11
a: The action of the floppy ears on this dog demonstrates overlapping action. The upward and downward action of the head is countered by the
ears. b: Overlapping action occurs in the legs and arms during this cartwheel action.
