Sensors- monitor external and internal environment Processing- receives information, integrates it, and decided what to do Effectors- carries messages.
Topic 6.5 Nerves, Hormones and Homeostasis
THE NERVOUS SYSTEM. INTRODUCTION TO THE NERVOUS SYSTEM Communication system 100 Billion nerve cells in the brain alone 2 main divisions to a vertebrate.
The Nervous System Chapter 48
Chapter 9: Nervous System
THE NERVOUS SYSTEM
