According to the General Chiropractic Council (GCC), chiropractic is  a health profession concerned with the diagnosis, treatment and prevention of mechanical disorders of the musculoskeletal system, and the effects of these disorders on the function of the nervous system and general health  .
obligation (Noun). The act of binding oneself by a social, legal, or moral tie to someone. obligation (Noun). A social, legal, or moral requirement, duty, contract, or promise that compels someone to follow or avoid a particular course of action.
Obligate parasite. Definition. noun, plural: obligate parasites. A parasite that entirely depends upon a host for its nourishment, reproduction, habitat, and survival.Supplement. [[Parasitism[[ is a symbiotic relationship between organisms wherein the parasitic organism derives benefits from the relationship at the expense of the host. parasite that entirely depends upon a host for its nourishment, reproduction, habitat, and survival. Supplement. [[Parasitism[[ is a symbiotic relationship between organisms wherein the parasitic organism derives benefits from the relationship at the expense of the host.