A Level Biology Revision (Year 13) Organisation of the Nervous System @Freesciencelessons
A Level Biology Revision (Year 13) Organisation of the Nervous System  @Freesciencelessons
Uploaded April 2025 | Updated September 2026, 2 hours ago
In this video, we look at the organisation of the mammalian nervous system. We explore the central nervous system and the peripheral nervous system and then the somatic (voluntary) and autonomic nervous systems. Finally, we look at the functions of the sympathetic and parasympathetic nervous systems.

Image credits:

Peripheral and central nervous system
commons.wikimedia.org/wiki/File:Nervous_system_diagram_unlabeled.svg
Medium69, Jmarchn, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Sleeping dog
commons.wikimedia.org/wiki/File:Dog.in.sleep.jpg
Eugene0126jp, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Fight or flight response
commons.wikimedia.org/wiki/File:Dog_and_cat_showing_fight_or_flight_responses.jpg
Peretz Partensky from San Francisco, USA, CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons
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A Level Biology Revision (Year 13) "Organisation of the Nervous System"

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