afferent fibers, and intrafusal muscle fibers can alter the length of the capsule during muscle contraction and relaxation. Muscle spindle, moreover, is a proprioceptor sensitive to stretch and the rate of stretch that is concentrated primarily in the muscle belly between the fibers; receptor parallel to the muscle that responds to the stretch of a muscle
chronic disease characterized by a progressive wasting away of the muscles. Likewise, Muscular dystrophy is a broad term used to describe a genetic disorder of the muscles. It causes the muscles in the body to become very weak, and over a period of time, the muscles break down and are replaced with fatty deposits.
nerves, tendons, ligaments, joints, cartilage and spinal discs. Some examples include Carpel tunnel syndrome, Pinched nerves, or Sciatica .