GCSE level School Biology Notes: An introduction to how the nervous system works
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INDEX of GCSE level exam revision notes: An introduction to the human nervous systems - both the central nervous system and the peripheral nervous system [Author © Dr WP Brown PhD: Doc Brown's biology exam revision notes suitable for students of UK IGCSE & GCSE level biology courses & ~ US grades 9-10 biology, updated August 26th 2025] Sub-index for nervous system notes (1) Introduction to the nervous system (2) Reminder - comparing two control systems (hormones and nerve cells) (3) Function and types of receptor cells (4) The structure and function of the central nervous system (CNS) (5) The central nervous system and reflex actions - the reflex arc (6) Simple physical response tests - how fast is your reaction time! See also The brain - what the different parts do and the dangers if damaged
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Sense organs - with particular reference to humans
Any practical work and investigations you did should also be revised (which should also be revised, helps in understanding 'how science works' and context examination questions):
WHERE NEXT? Find your GCSE science course for more help links to revision notes This is a BIG website, you need to take time to explore it [Website Search Box] email doc brown - comments - query? General HUMAN BIOLOGY revision notes Introduction to the organisation of cells => tissues => organs => organ systems (e.g. in humans) Examples of surfaces for the exchange of substances in animal organisms Homeostasis - introduction to how it functions (negative feedback systems explained) Homeostasis - control of blood sugar level - insulin and diabetes Homeostasis - thermoregulation, control of temperature The brain - what the different parts do and the dangers if damaged An introduction to the nervous system including the reflex arc Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones Hormone systems - menstrual cycle, contraception, fertility treatments Respiration - aerobic and anaerobic in plants and animals. Keeping healthy - communicable diseases - pathogen infections Keeping healthy - non-communicable diseases - risk factors for e.g. cancers Keeping healthy - diet and exercise
Food tests for reducing sugars, starch, proteins and lipids The eye - structure and function - correction of vision defects Optics - lens types (convex, concave, uses), experiments, ray diagrams, correction of eye defects (gcse physics) HOME PAGE of Doc Brown's Science Basic Science Quizzes for UK KS3 science students aged ~12-14, ~US grades 6-8 Biology * Chemistry * Physics for UK GCSE level students aged ~14-16, ~US grades 9-10 Advanced Level Chemistry for pre-university age ~16-18 ~US grades 11-12, K12 Honors
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