Final answer:
The statement is true; the severity of a muscle strain depends on the number of muscle fibers that are damaged, with more damaged fibers leading to more severe symptoms.
Step-by-step explanation:
True or False: The severity of a muscle strain depends on the number of muscle fibers that are damaged. This statement is true. A muscle strain occurs when muscle fibers tear due to overstretching. The severity of the strain is indeed related to the number of fibers that have been injured.
The more fibers that are damaged, the more severe the injury will be, which can result in greater pain, stiffness, and bruising among other symptoms. As such, the intensity of a muscle strain ranges from mild to extreme, based on how many muscle fibers are affected.