Final answer:
The statement regarding the PEC as the elastic component in muscle tendons is false; elasticity in muscles is due to elastic fibers in the muscle tissue, while tendons made of dense connective tissue transfer tension for movement.
Step-by-step explanation:
The statement that the PEC is the elastic component resident in the muscle's tendons is false. In reality, PEC stands for something different in various contexts and is not typically used to refer to an elastic component in muscle tendons. Instead, muscles have elasticity due to the presence of elastic fibers within the muscle tissue itself, not just in the tendons. This allows muscles to stretch, recoil, and return to their original length when relaxed. Meanwhile, the tendons are made of dense connective tissue that connect muscles to bones, transferring tension created by muscle contraction to move the skeleton.