3. NERVOUS SYSTEM/DISEASES

https://www.abpischools.org.uk/topics/homeostasis-blood-sugar-and-temperature/insulin-and-blood-sugar-control/

https://www.abpischools.org.uk/topics/nervous-system/the-structure-of-the-nervous-system/

https://www.abpischools.org.uk/topics/nervous-system/problems-with-the-nervous-system/