Home / Ilm / AKSON

AKSON

neyritAKSON (az yun. axon – mehvar), neyrit, shokhai hujayrai asab, ki ba vositai on impulshoi asab az hujayra ba uzvho va dig. hujayrahoi asab pahn meshavand. Az har hujayrai asab (neyron) faqat yak A. mebaroyad. Gizogiri va numui A. az jismi neyron vobasta ast: hangomi buridani A. qismi kanorai on nobud gashta, qismi markaziash faol boqi memonad. Dar protoplazmai A. (aksoplazma) torhoi tunuk – neyrofibrilho, inchunin mitokhondriya va turi endoplazmavi mavjudand. Sokhtori jild va diametri A., ki torhoi asabro tashkil medihand, surati tavassuti asab guzaronidani angezishro muayyan mesozand. Intihoi A. (terminalho) shokha ronda, ba asabhoi digar (mas., asabi mushakho) aloqa menamoyad. CHunin robita (sinapsho) baroi intiqoli angezish musoidat mekunad. Majmui A.-horo asab menomand.

Загрузка...

Dar boramon

Инчунин кобед

planet

ZAMIN – SAYYORAI SISTEMAM OFTOBI

Sababhoi tagyiryobii faslhoi sol. Az kursi tabiatshinosi mo medonem, ki Oftob in markazi sistemai oftobii mo …