aduh ieu teh nu leueur tea, Kang Duli kapungkur teh sanes naroskeun ieu...:), hatur nuhun kang kumincir kana informasi ilmiahna..... Baktos, DW
-----Original Message----- From: kumincir [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 01, 2005 2:04 PM To: Kusnet Cc: [EMAIL PROTECTED]; urang garut; garut; [EMAIL PROTECTED]; Kisunda Subject: [Urang Sunda] Wikipedia: Sp�rma Kahatur nu tos aya niat rarabi, ieu salasahiji tiorina... Nyanggakeun! S�l sp�rma, atawa spermatozoon/spermatozoa (Basa Latin: sperm = mani, jeung zoon = hirup), nya�ta s�l haploid gam�t jalu/lalaki. Sp�rma dibawa na cairan nu disebut mani (Ing. semen), nu bisa ngabuahan s�l endog pikeun jadi zigot. Zigot bisa tumuwuh jadi organisme anyar, kaasup manusa. S�l sp�rma ngandung satengah iber genetik nu dipikabutuh pikeun "nyiptakeun" mahluk hirup. Sacara umum, kelamin turunan ditangtukeun ku spvrma, ku ayana papasangan kromosom "XX" (pikeun bikang) atawa "XY" (pikeun jalu). S�l sp�rma munggaran katalungtik ku Anton van Leeuwenhoek taun 1679. Struktur jeung ukuran sp�rma Sp�rmatozoa mangrupa s�l nu geus didiferensiasikeun, normalna diwangun ku hulu, awak, jeung buntut. Huluna ngandung sitoplasma jeung bahan inti pikeun f�rtilisasi. Awakna ngandung loba pisan mitokondria nu nyadiakeun tanaga pikeun hojahna sp�rma ku ngahasilkeun ATP. Buntut sp�rmatozoa dipak� pikeun ngawelah. Di manusa, s�l sp�rma ngawengku hulu 5 �m, awak 3 �m, jeung buntut nu panjangna 50 �m. S�l ieu dicirikeun ku saeutikna sitoplasma. Produksi sp�rma Artikel utama: Sp�rmatogenesis Sp�rma dihasilkeun dina solobong mani na t�st�s dina pros�s nu disebut sp�rmatogenesis. S�l buleud nu disebut sp�rmatogonia beulah sarta didiferensiasi sahingga jadi sp�rma. Nalika rarasmi, sp�rma asup kana heunceut - nu salajengna asup ka rahim. Tumbu kaluar * The Handbook of Andrology Komunitas Urang Sunda --> http://www.Urang-Sunda.or.id Yahoo! Groups Links ------------------------ Yahoo! Groups Sponsor --------------------~--> Give the gift of life to a sick child. Support St. Jude Children's Research Hospital's 'Thanks & Giving.' http://us.click.yahoo.com/lGEjbB/6WnJAA/E2hLAA/0EHolB/TM --------------------------------------------------------------------~-> Komunitas Urang Sunda --> http://www.Urang-Sunda.or.id Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/urangsunda/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
