Final answer:
Peripheral fatigue can be caused by various mechanisms, but transverse tubules and the sarcolemma are not among them.
Step-by-step explanation:
Peripheral fatigue refers to the decrease in muscle performance that occurs in the muscles outside of the central nervous system. The potential mechanisms of peripheral fatigue include spinal cord activation, Ca++ release from the sarcoplasmic reticulum, and cross-bridge force production. However, transverse tubules and the sarcolemma are not potential mechanisms of peripheral fatigue.