Central Nervous System

Central nervous system

Autonomic System

Output system

Peripheral nervous system

Afferent System

Where response to stimuli is decided

Consist of brain and the spinal cord

Stimulus

Receptor

Sensory Neuron

Central neuron

CNS

Motor neuron

Effector

Response

Made from motor and sensory neuron

Carries impulses

Carrying sensory information toward a central organ or part, as a nerve that conducts impulses from the periphery of the body to the central nervous system.

Nerve Bundles of fibres made up of neurons

The nerve pathway involved in a reflex action, including at its simplest a sensory nerve and a motor nerve with a synapse between.


All voluntary activities involve the brain, which sends out the motor impulses that control movement. These motor signals are initiated by thought and most also involve a response to sensory stimuli.