Conduction of a nerve impulseतंत्रिका आवेग का संचरण

NCERT Fig 18.2 · interactive diagram

Parts and their functions

• Axon membrane (तंत्रिकाक्ष झिल्ली) — Separates axoplasm (high K⁺) from tissue fluid (high Na⁺).
• Polarised (resting) (ध्रुवित (विराम)) — Outside +, inside − ; maintained by the Na⁺–K⁺ pump.
• Depolarised site (विध्रुवित स्थल) — Na⁺ rushes in; outside −, inside + = action potential.
• Na⁺ influx (Na⁺ अंतर्वाह) — Stimulus opens the membrane to Na⁺.
• Local current (स्थानीय धारा) — Flows to the next site, which depolarises — the impulse moves.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 18.2. Report a mistake