You searched for: “trophic center”
trophic center (s) (noun), trophic centers (pl)
A part of a cell or of part of the nervous system that is essential for the nutrition, growth and maintenance of an organism: The trophic center is any part of the central nervous system whose proper functioning is thought to be necessary for the nutrition, growth, or maintenance of a peripheral part of the body; such as, the parietal lobe for the development of the muscles of an extremity.