APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -A muscle strain occurs when muscle fibers cannot cope with the demands placed on them by exercise overload and leads to tearing of the fibers. It is a contraction-induced injury in which muscle fibers tear due to extensive mechanical stress.

Detailed explanation-2: -Myasthenia gravis (MG) is an autoimmune disorder that results in neuromuscular junction dysfunction. Clinically, MG is characterized by muscle weakness in a variable number of different skeletal muscle groups of fluctuating severity over the course of the disease.

Detailed explanation-3: -When a muscle becomes shorter and thicker and causes movement, it is said to have: Contractibility.