Isebenza kanjani uhlelo lokuzala lwabesilisa

-Delile

• Ziyini izitho zocansi zesilisa
• 1. Isikhwebu
• 2. Amasende
• 3. Izindlala zocansi ezifinyelelekayo
• 4. Umthondo
• Kusebenza Kanjani Ukulawulwa Kwehormone

Uhlelo lokuzala lwabesilisa luvela kusethi yezitho zangaphakathi nezangaphandle, ezikhipha ama-hormone, ama-androgens, futhi zilawulwa ubuchopho nge-hypothalamus, ekhipha i-hormone ekhipha i-gonadotropin kanye ne-pituitary, ekhipha i-hormone evuselela i-follicle ne-luteinizing .

Izici eziyinhloko zocansi, ezibandakanya isitho sangasese sowesilisa, zakheka ngesikhathi sokukhula kombungu kuthi ezesibili zakheke kusukela ekuthombaneni, ziphakathi kweminyaka yobudala eyi-9 nengu-14, lapho umzimba womfana uba owesilisa, lapho izitho zobulili zomuntu wesilisa zikhula khona, kanye nokubonakala kwentshebe, uboya emzimbeni wonke nokujiya kwezwi.

Ziyini izitho zocansi zesilisa

1. Isikhwebu

Isigaxa sesikhwama yisikhwama sesikhumba esixegile, esinomsebenzi wokuxhasa amasende. Zihlukaniswa yi-septum, eyakhiwa izicubu zemisipha futhi lapho ingena enkontilekeni, idala ukugoqana kwesikhumba samasende, okubaluleke kakhulu ekulawuleni izinga lokushisa, ngoba isesendeni lapho kukhiqizwa khona isidoda.

Isigaxa samaphaphu siyakwazi ukugcina ukushisa kwamasende kungaphansi kwezinga lomzimba, njengoba kungaphandle komgogodla wezitho zangasese. Ngaphezu kwalokho, kwezinye izimo, njengokuchayeka emakhazeni, umsipha we-cremaster, ofaka i-scrotum bese umisa i-testicle, uphakamisa amasende ngesikhathi sokuchayeka emakhazeni, ukuvimbela ukuthi kungapholi, okwenzeka futhi ngesikhathi sokuvuka kocansi.

2. Amasende

Abesilisa bajwayele ukuba namasende amabili, okuyizitho ezinomumo ovundlile futhi elinganiselwa ku-5 cm ubude no-2.5 ​​cm ububanzi lilinye, linesisindo esingama-gram ayi-10 kuye kwayi-15. Lezi zitho zinomsebenzi wokufihla ama-hormone ocansi abandakanyeka kwi-spermatogenesis, equkethe ukwakheka kwesidoda, futhi okukhuthaza ukukhula kwezici zobulili zowesilisa.

Ukusebenza kwamasende kuthonywa uhlelo oluphambili lwezinzwa, ngokusebenzisa i-hypothalamus, efihla i-hormone ekhipha i-gonadotropin (GnRH), kanye ne-pituitary, ekhipha i-follicle-stimulating (FSH) ne-luteinizing (LH) hormone.

Ngaphakathi kwamasende kunama-tubules a-seminiferous, lapho kwenzeka khona ukwahlukaniswa kwamangqamuzana wegciwane ku-spermatozoa, bese kukhishwa kukhanyiso lwe-tubules futhi kuqhubeke nokuvuthwa endleleni yaso ngokusebenzisa amapayipi ohlelo lokuzala. Ngaphezu kwalokho, ama-tubules aseminiferous nawo anamaseli we-Sertoli, abhekele ukondleka nokuvuthwa kwamaseli wegciwane, kanye nezicubu zomzimba ezizungeze la ma-tubules ziqukethe amaseli e-Leydig, akhiqiza i-testosterone.

3. Izindlala zocansi ezifinyelelekayo

Lezi zindlala zibhekene nokufihla isidoda esiningi, okubaluleke kakhulu ukuhanjiswa kanye nokudla kwesidoda nasekuthambiseni ipipi:

• Ama-vesicles weseminal:ziyizakhiwo ezingemuva kwesisekelo sesinye naphambi kwethanga futhi zikhiqiza uketshezi olubalulekile ukulungisa i-pH ye-urethra emadodeni nokunciphisa i-asidi yohlelo lobulili lwabesifazane, ukuze luhambisane nempilo kwesidoda. Ngaphezu kwalokho, ine-fructose ekubunjweni kwayo, okubalulekile ukukhiqiza amandla okusinda kwabo kanye nokuqothuka, ukuze bakwazi ukuvundisa iqanda;
• Indlala yesinye:lesi sakhiwo sitholakala ngaphansi kwesinye, sizungeze yonke i-urethra futhi sikhiphe uketshezi olunobisi olunomthelela ekunqandeni kwalo ngemuva kokuphuma. Ngaphezu kwalokho, iqukethe nezinto ezisetshenziselwa ukukhiqizwa kwamandla, ezinomthelela ekuhambeni nasekusindeni kwesidoda.
• Izindlala zeBulbourethral noma izindlala zikaCowper: lezi zindlala zitholakala ngaphansi kwe-prostate futhi zinemigudu evuleka engxenyeni yesiponji yomchamo, lapho ikhipha khona into enciphisa ubumuncu bomchamo obubangelwa ukudlula komchamo. Le nto ikhishwa ngesikhathi sokuvuswa kocansi, nakho okunomsebenzi wokuthambisa, osiza ukuhlangana ngokocansi.

4. Umthondo

Umthondo uyisakhiwo esiyindilinga, esakhiwe yimizimba ye-cavernous nemizimba enesiponji, etholakala ezungeze i-urethra. Ekupheleni okukude kwepipi, kune-glans, embozwe ijwabu, elinomsebenzi wokuvikela lesi sifunda.

Ngaphezu kokwenza kube lula ukuphuma komchamo, ipipi linomsebenzi obalulekile kwezocansi, okugqugquzelwa kwalo kubangele ukunwetshwa kwemithambo yalo enisela imizimba ye-cavernous ne-spongy futhi idale ukwanda kwenani legazi kulesi sifunda, nakho okuholela ekuqiniseni ipipi, okwenza lula ukungena kwalo emseleni wesitho sangasese sowesifazane ngesikhathi sokuya ocansini.

Kusebenza Kanjani Ukulawulwa Kwehormone

Ukukhiqizwa kwabesilisa kulawulwa ama-hormone ashukumisa ukukhula kwezitho zokuzala, ukukhiqizwa kwesidoda, ukukhula kwezici zobulili zesibili kanye nokuziphatha kocansi.

Ukusebenza kwamasende kulawulwa yi-hypothalamus, ekhipha i-gonadotropin-ikhipha i-hormone (GnRH), igqugquzela indlala yesibeletho ukukhipha i-luteinizing hormone (LH) ne-follicle-stimulating hormone (FSH). La mahomoni asebenza ngqo kumasende, alawula i-spermatogenesis kanye nokukhiqizwa kwe-androgen, estrogen kanye ne-progesterone hormone.

Phakathi kokugcina, amahomoni amaningi kakhulu emadodeni angama-androgens, ne-testosterone ebaluleke kakhulu futhi ehlobene nokwakhiwa kanye nokugcinwa kwezimpawu zobulili zesilisa, nakho okuthonya ukwakheka kwesidoda.

I-Androgens nayo inethonya ekuthuthukiseni izici zobulili eziyinhloko nezesibili. Izici zobulili eziyinhloko, njengezitho zobulili zangaphandle nezangaphakathi zowesilisa, zakheka ngesikhathi sokukhula kombungu nezici zesibili zocansi ziyakhiwa kusukela ekuthombaneni.

Ukuthomba kwenzeka cishe eminyakeni eyi-9 kuye kwengu-14 ubudala, kuletha ushintsho ekubunjweni komzimba, ukukhula kwentshebe nezinwele zasesidlangalaleni nawo wonke umzimba, ukuqina kwezintambo zezwi nokuvela kwesifiso sobulili. Ngaphezu kwalokho, kukhona nokukhula kwesitho sangasese sowesilisa, i-scrotum, ama-vesicles wesilisa kanye ne-prostate, ukwanda kwezicubu ezi-sebaceous, ezibhekene nezinduna.

Bona futhi ukuthi uhlelo lokuzala lwabesifazane lusebenza kanjani.