The nervous system has three primary functions:
Sensory Function – It detects internal and external stimuli using sensory receptors. This includes monitoring changes in the environment (e.g., temperature, light, pressure) and within the body (e.g., pH, blood pressure).
Integrative Function – It processes and interprets sensory input and decides what action should be taken. This includes perception, analysis, memory, and decision-making, mostly occurring in the brain and spinal cord (central nervous system).
Motor Function – It responds to stimuli by initiating actions through motor output. This function activates muscles (skeletal, cardiac, smooth) or glands to carry out a response, like moving a limb or secreting a hormone.
Would you like a diagram to illustrate these functions?
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