An LMS is the engine that powers eLearning, and in the most common form it consists of two separate parts: - A server component that performs the core functionality (creating, managing and delivering courses, authenticating users, serving data and notifications, etc.)
Atrophy vs dystrophy. What are atrophy and dystrophy? Atrophy and dystrophy are both terms related to muscular functioning. Muscular atrophy is wasting of muscles due to loss of tissue while muscular dystrophy is a group of muscle diseases that have weakness in the muscles and leads to reduced mobility. Muscular dystrophy causes debility and the person becomes progressively disabled as they lose the power of movement.
Atrophy is the general physiological process of reabsorption and breakdown of tissues, involving apoptosis.When it occurs as a result of disease or loss of trophic support due to other disease, it is termed pathological atrophy, although it can be a part of normal body development and homeostasis as well.stronauts in microgravity must exercise regularly to minimize atrophy of their limb muscles. There are many diseases and conditions which cause atrophy of muscle mass. For example diseases such as cancer and AIDS induce a body wasting syndrome called  cachexia , which is notable for the severe muscle atrophy seen.