This document discusses medical suffixes. It describes the -trophic suffix which relates to nutrition in the body and the process of nourishing or stimulating tissues. It also discusses the vegetative nervous system which controls organs and is responsible for the nutrition of tissues and organs. Additionally, it defines the -taxia suffix as relating to order or arrangement of muscles and describes ataxia as a lack of muscle control or coordination that can affect movements and create difficulties with speech, eye movement, and swallowing.