Contents 1 Type Ad spermatogonia ("dark") 2 Type Ap spermatogonia ("pale") 3 Type B spermatogonia 4 References 5 See also


Type Ad spermatogonia ("dark")[edit] The population of spermatogonia is maintained by type Ad spermatogonia. These cells do not directly participate in producing sperm, instead serving to maintain the supply of stem cells for spermatogenesis. Each type Ad spermatogonium divides to produce another type Ad spermatogonium, which can further carry on spermatogenesis, and one type Ap spermatogonium, which differentiates further.[1]


Type Ap spermatogonia ("pale")[edit] Type Ap spermatogonia repeatedly divide mitotically to produce identical cell clones linked by cytoplasmic bridges. The connections between cells allow development to be synchronised. When repeated division ceases, the cells differentiate into type B spermatogonia. This stage is referred to as the spermatogonial phase.


Type B spermatogonia[edit] Type B spermatogonia undergo mitosis to produce diploid intermediate cells called primary spermatocytes.


References[edit] ^ CLERMONT, Yves (March 1966). "Renewal of spermatogonia in man". American Journal of Anatomy. 118 (2): 509–524. doi:10.1002/aja.1001180211. 


See also[edit] Oocytogenesis Spermatogenesis v t e Male reproductive system Internal Seminal tract Testes layers Tunica vaginalis Tunica albuginea Tunica vasculosa Appendix Mediastinum Lobules Septa Leydig cell Sertoli cell Blood–testis barrier Spermatogenesis Spermatogonium Spermatocytogenesis Spermatocyte Spermatidogenesis Spermatid Spermiogenesis Spermatozoon Other Seminiferous tubules Tubuli seminiferi recti Rete testis Efferent ducts Epididymis Appendix Stereocilia Paradidymis Spermatic cord Vas deferens Ampulla Ejaculatory duct Accessory glands Seminal vesicles excretory duct Prostate Urethral crest Seminal colliculus Prostatic utricle Ejaculatory duct Prostatic sinus Prostatic ducts Bulbourethral glands External Penis root Crus Bulb Fundiform ligament Suspensory ligament body Corpus cavernosum Corpus spongiosum glans Foreskin Frenulum Corona fascia superficial deep Tunica albuginea Septum of the penis Urinary tract Internal urethral orifice Urethra Prostatic Intermediate Spongy Navicular fossa External urethral orifice Lacunae of Morgagni Urethral gland Scrotum layers skin Dartos External spermatic fascia Cremaster Cremasteric fascia Internal spermatic fascia Perineal raphe Scrotal septum Retrieved from "https://en.wikipedia.org/w/index.php?title=Spermatocytogenesis&oldid=732042959" Categories: Mammal male reproductive system


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EnlargeGametocytogenesis (disambiguation)SpermatogoniaGametogoniaCell NucleusMitosisMitosisSpermatocyteDigital Object IdentifierOocytogenesisSpermatogenesisTemplate:Male Reproductive SystemTemplate Talk:Male Reproductive SystemMale Reproductive SystemMale Internal GenitaliaSeminal TractTesticleTunica VaginalisTunica Albuginea Of TestisTunica Vasculosa TestisAppendix Of TestisMediastinum TestisLobules Of TestisSepta Of TestisLeydig CellSertoli CellBlood–testis BarrierSpermatogenesisSpermatogoniumSpermatocyteSpermatidogenesisSpermatidSpermiogenesisSpermatozoonSeminiferous TubuleTubuli Seminiferi RectiRete TestisEfferent DuctsEpididymisAppendix Of The EpididymisStereocilia (epididymis)ParadidymisSpermatic CordVas DeferensAmpulla Of Ductus DeferensEjaculatory DuctSeminal VesicleExcretory Duct Of Seminal GlandProstateUrethral CrestSeminal ColliculusProstatic UtricleEjaculatory DuctProstatic SinusProstatic DuctsBulbourethral GlandMale External GenitaliaHuman PenisRoot Of PenisCrus Of PenisBulb Of PenisFundiform LigamentSuspensory Ligament Of PenisBody Of PenisCorpus Cavernosum PenisCorpus Spongiosum PenisGlans PenisForeskinFrenulum Of Prepuce Of PenisCorona Of Glans PenisFasciaSubcutaneous Tissue Of PenisBuck's FasciaTunica Albuginea (penis)Septum Of The PenisUrinary SystemInternal Urethral OrificeUrethraProstatic UrethraMembranous UrethraSpongy UrethraNavicular Fossa Of Male UrethraExternal Urethral Orifice (male)Lacunae Of MorgagniUrethral GlandScrotumHuman SkinDartosExternal Spermatic FasciaCremaster MuscleCremasteric FasciaInternal Spermatic FasciaPerineal RapheScrotal SeptumHelp:CategoryCategory:Mammal Male Reproductive SystemDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer



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