Video narration
Gend aapki or uchhali jae, to dekhkar aapka haath use pakadna kaise jaanta hai? Aankhen uski disha batati hain; dimaag use pehle seekhi baaton se milakar andaaza lagata hai ki haath kahan le jaana hai. Yeh bas ek saral udaaharan hai. Dimaag koi akela boss nahi hai. Neurons, yaani tantrika koshikayen, vidyut aur rasayanik sanketon se ek-doosre se baat karte hain; kai koshikayen milkar pratikriya banati hain. Unke sanket naso se haathon tak pahunchte hain. Gend ki chaal dekhte hue dimaag haath ki gati sudhaarta hai, aur aap use pakad lete hain.