Question Answer
Sensory nervous system To detect changes in the external and internal environments.
Integrative nervous system To analyse sensory input, store information.
Motor nervous system To initiate response to stimuli.
What is a reflex? A reflex is a quick involuntary response to change in the external environment or internal environment.
What is a somatic reflex? A somatic reflex uses somatic motor neurones that excite skeletal muscle cells.
What is a visceral reflex? A visceral reflex involves visceral organs and uses autonomic motor neurones to control cardiac or smooth muscle cells.
What are the five key components of a reflex arc? Receptor, sensory neurone, integrating centre, motor neurone and effector.

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