Video narration
Chalti gend ko dekhkar aap use pakad kaise lete hain? Yeh aasaan udaharan hai: aankhen gend ki chaal pehchanti hain. Mastishk koi chhota boss nahi, jo akela aadesh de. Jude neurons, yaani sandesh pahunchane wali koshikayen, sanketon ko jodkar pratikriya mein taalmel banate hain. Phir haath aur sharir ki maanspeshiyan gend ki or badhti hain. Abhyas is taalmel ko nikhaarta hai. Gend pakadne mein, aankhen gati ke sanket bhejti hain; mastishk unhe samajhkar maanspeshiyon ko disha deta hai.