Question

lo 4.6. what affects the range of motion of a muscle?
the type of muscle fibers.
the shape of the muscle fibers.
the thickness of the muscle fibers.
the arrangement of muscle fibers.
the number of muscle fibers.

Explanation:

The arrangement of muscle fibers determines how much a muscle can contract and move, affecting its range of motion. Different arrangements like parallel, pennate etc. have different mechanical advantages and motion - ranges.

Answer:

The arrangement of muscle fibers.