Such rapid responses are controlled by your nervous system.. . complex organ of the human body and the control center of the nervous system.. . light receptor cells, like those in the photograph on the first page of this chapter.. . Identify the two major divisions of the peripheral nervous system. 8. List five human senses. 9 . In this chapter: 2.1 Coordination. Study checklist/Digital resources 94. Looking back your nervous system, which will tell your body what to do. As there. Control centre. Stimulus. Receptor. Effector. Response. 32 Science Quest 9. .. NNerrvrrvvrvrrvvrrvee ee e isissisissiisiisiisiisis ngnngnngnggnggng alaalaalaalaalla s.