The musculoskeletal system is the combination of the muscular and skeletal systems working together and includes the bones, muscles, tendons and ligaments of the body.he musculoskeletal system is the combination of the muscular and skeletal systems working together and includes the bones, muscles, tendons and ligaments of the body.
A social identity is the portion of an individual's self-concept derived from perceived membership in a relevant social group.s originally formulated by Henri Tajfel and John Turner in the 1970s and the 1980s, social identity theory introduced the concept of a social identity as a way in which to explain intergroup behaviour.
Though defining collective identity to be a self-central concept, they emphasize on its distinction from concepts like ideology, motivation, and personal identity. Not to be confused with social identity theory or self-categorization theory, collective identity focuses on the identity of the group as a whole, while the other theories focus on the identity of an individual(self)âs association with a group.