Answer
Of the three skeletal muscle structures, muscle fibers, myofibrils and thick filaments, thick filaments are the smallest
Work Step by Step
Approximate dimensions of some skeletal muscle structures:
1. Myofibers: approx 10 cm long and 10-100 um in diameter.
2. Myofibrils: approximately 2 um in dia.
3. Thick filaments 1-2 um long and 10-15 nm dia. (smallest)