What are the three basic functions of the nervous system as described in the chapter?

The three basic functions of the nervous system described in the chapter are receiving information, integrating information, and responding to information.

The chapter opens section 11.1 with the heading "The nervous system receives, integrates, and responds to information." It describes the nervous system as the master controlling and communicating system of the body, whose cells communicate by rapid, specific electrical and chemical signals that usually cause almost immediate responses. Thus, the three basic functions are sensory reception, integration, and motor response, expressed in the text as receiving, integrating, and responding.