Izici zobulili zesibili zinquma izinguquko ezenzeka esakhiweni nasemisebenzini yezitho ezihlukahlukene. Zichaza ubulili bomuntu. Ungazidibanisi nezici eziyinhloko zobulili ezikhomba izitho zocansi.

Izici zobulili zesibili zixhomeke ngokuqondile ezimpawu eziyinhloko. Baqala ukuzibonakalisa ngesikhathi sokuvuthwa, lapho izinga lama-hormone ocansi likhula. Izimpawu ezinjalo zihlanganisa: ukuthuthukiswa kwezigulane ezincelisayo, izici zezinwele, ukulingana komzimba, uhlelo lwe-musculoskeletal, fat subcutaneous, umehluko ekuziphatheni nokunye okuningi.

Izimpawu zokukhulelwa emantombazaneni zivela eminyakeni engaba ngu-10-11. Ngaphansi kwethonya lama-hormone, ukuqina komzimba nokukhula kukhula ngokushesha. Imikhawulo ikhula ngokushesha kunomzimba uqobo. Ukuma kwesikhumba kanye nawo wonke ama-skeleton ashintsha ngokuphelele. Ezinkalweni, amathanga kanye namafutha esiswini anikezwa, ngenxa yokuthi ukuma komzimba kuhlanganiswe. Isikhumba sibe ithenda futhi sihle. Kukhona ukukhula nokuthuthukiswa kwezigulane ze-mammary kanye ne-protrusion ye-circle okolososkovy. Kamuva, izigonda zebele zizokhula. Baqoqa izicubu ezinamafutha, okwenza ukuba kutholakale igulane le-mammary elivuthiwe. Izinwele ezikhanda zikhula ngamandla. Ivela emagumbini nasendaweni yokushicilela. Lokhu kuvele kwenzeka kakhulu emantombazaneni kunabesilisa. Kwabesifazane, ukusatshalaliswa kwezinwele ngesimo soxantathu nomngcele ocacile ngaphezu kwe-pubis kuyisici.

Ngalesi sikhathi, izigulane ze-sweat ziqala ukusebenza ngokuzikhandla futhi zinikeze iphunga elimhlophe lomuntu wesifazane. Izigulane ezisabekayo ziqala ukusebenza , ngenxa yalokho intsha eningi inayo izinkinga zesikhumba ezinjengama-acne namantombazane.

Emva kweminyaka emibili noma emithathu kusukela esikhathini sokubonakaliswa kwezimpawu ezichazwe ngenhla, amantombazane aqala ukuya esikhathini. Kubhekwa njengesibonakaliso esikhulu sokukhulelwa. Ukuya esikhathini kusho ukuthi intombazane iyakwazi ukukhulelwa. Kule minyaka kuyadingeka ukuthi ukhulume kaningi ngangokunokwenzeka nengane bese uchaza zonke izinguquko ezenzeka ngomzimba. Kubaluleke kakhulu ukutshela kahle ngokuphila kocansi kanye nazo zonke izingozi ezihlobene nayo.

Izibonakaliso zocansi, ukukhula ngenkuthalo kule minyaka, azibonakali ukuvuthwa komzimba. Ukuqala kokukhulelwa kuyingozi kabi impilo futhi kuthinta ikhono lokuba nezingane esikhathini esizayo.

Ukuvuthwa okujwayelekile komzimba wesifazane kuza ngemuva kweminyaka embalwa. Ngokujwayelekile kuneminyaka engu-17-18 ubudala. Ngalesi sikhathi, izici zobunikazi zesibili sezivele zithuthukisiwe kahle, futhi uhlelo lokuzala lusebenza ngamandla onke. Kuphela manje singasho ukuthi umzimba wentombazane ulungele umama.

Abafana bakhula kancane kancane. Izici zobulili zesibili zibhekene nokukhula okuqinile komzimba, i-penis nama-testicles, kanye nokwanda kwesisindo somzimba. Ngenxa yokuthi isimo se-larynx sishintsha, izwi liyancipha futhi liba liphansi. Emagumbini, ku-pubis nobuso kubonakala izinwele. Ezinye izinsizwa zivuvukala izigulane ezincelisayo futhi zizwela kakhulu. Ngesikhathi abaneminyaka engu-15 bavuka ngokuya ocansini futhi bangangcoliswa.

Emadodeni amasha, i-tubini ye-seminiferous igcwele i-spermatogonia. Kusukela ngesikhathi lapho izigulane zezocansi zizokwazi ukukhiqiza u-spermatozoa ovuthiwe, ungakhuluma ngokujoyina le nsizwa ngesikhathi sokukhulelwa. Ukuthuthukiswa kwezici zesondo zobulili ezijwayelekile kumadoda kwenzeka eminyakeni engama-23-25. Njengomthetho, kuze kube manje ukubonakala komuntu sekuvele kwakhiwe ngokugcwele. Uyakwazi ukuhola impilo evamile yobulili futhi akhiphe inzalo.

Imfundo yezocansi iyigugu ebalulekile empilweni yamadoda nabesifazane abasha. Abazali kufanele bachaze imithetho yokuziphatha ngendlela elula futhi efinyeleleka. Ungavumeli izingane zikwazi ngobuhlobo besilisa nabesifazane abavela ezikrinini ze-TV noma kubangani. Ulwazi olunjalo lungalimaza kakhulu abantu abasha kakhulu.