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.
Conflict theories are perspectives in sociology and social psychology that emphasize the social, political, or material inequality of a social group, that critique the broad socio-political system, or that otherwise detract from structural functionalism and ideological conservativism.onflict theories are perspectives in sociology and social psychology that emphasize the social, political, or material inequality of a social group, that critique the broad socio-political system, or that otherwise detract from structural functionalism and ideological conservativism.