WJEC A-Level biology unit 3 Nervous System Summary notes/ Mindmap

Revise the Nervous System topic with confidence using this comprehensive, specification-aligned summary sheet for WJEC A Level Biology Unit 3: Energy and Homeostasis. Designed directly from the WJEC specification, this detailed revision resource condenses essential content into one clear, visually organised page. With colour-coded notes, labelled diagrams, and concise explanations, it’s perfect for quick revision, active recall, and exam preparation. What’s included? Complete coverage of the Nervous System section of the WJEC specification Detailed yet concise handwritten notes Clear diagrams and labelled biological structures Colour-coded organisation for faster learning and recall Exam-focused content presented in an easy-to-understand format Ideal for revision before tests, mocks, and final exams Topics covered include: * Structure and function of the nervous system * Central and peripheral nervous systems * The spinal cord and its organisation * Sensory, relay and motor neurones * Reflex actions and reflex arcs * Structure of a motor neurone * Resting potential * Action potentials * Depolarisation, repolarisation and hyperpolarisation * The all-or-nothing principle * Refractory periods * Transmission of nerve impulses * Myelin sheath, Schwann cells and nodes of Ranvier * Oscilloscope traces and interpretation of action potentials Why choose this resource? * Saves hours of creating your own revision notes * Covers exactly what is required by the WJEC specification * Combines diagrams and written explanations for effective learning * Excellent for last-minute revision and topic consolidation * Created to make complex processes easier to understand and remember Whether you’re aiming to secure top grades or simply want a clear overview of the topic, this revision sheet provides everything you need to master the Nervous System section of WJEC A Level Biology Unit 3: Energy and Homeostasis.