Peripheral Nervous System: Crash Course A&P

The video explores the brain's dependency on the peripheral nervous system to process external stimuli, emphasizing the role of pain as a protective mechanism. It explains how pain signals are perceived and processed through reflex arcs and neural pathways, highlighting the brain's involvement in interpreting these signals. The video also discusses the importance of reflex actions in self-preservation and the differences between innate and learned reflexes.

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