Systems description of body ( Swanson & Bota, 2010 ) : One of two common orthogonal ways of describing completely the body; the other is the topographic description of body. An individual body system is a set of interconnected or interdependent parts that form a complex unity with a specific function; see Dorland's (2003), Oxford English Dictionary (1989). A set of body systems together describes completely the structure-function organization of the body; see Brash (1951, p. 4), Hollinshead (1974, pp. v-vii), Williams (1995, pp. 2, 15). Also called a systematic description of body.