Master Nerve Impulses fast ⚡ – clear explanations, OCR-aligned.
You’ll cover
• The structure of neurones and how nerve impulses are transmitted along axons.
• How resting potential is established by ion distribution across the membrane.
• The threshold potential and how a nerve impulse is triggered.
• The stages of an action potential including depolarisation and repolarisation.
• How refractory periods ensure impulses propagate in one direction.
What’s included
• Diagram showing ion distribution across the membrane during the resting potential.
• Step-by-step diagrams illustrating depolarisation, repolarisation and hyperpolarisation.
• Table summarising the key stages of the action potential and ion channel activity.
• Exam-style model answers explaining resting potential and action potentials.
Format
Web-based textbook topic. Mobile/desktop friendly. Access with no time limit, updates included.