Kapangidwe ka machende ndi

Machende kapena, mwa kulankhula kwina, ndi testes ali mkati wamwamuna ziwalo zoberekera. Kapangidwe ka testes ali ndi wapawiri ntchito: mapangidwe umuna ndi incretion mahomoni. mahomoni izi amuna chosiyana chachimuna taonani, mawu kwambiri, pamaso pa ndevu. Iwo kudziwa makhalidwe enieni mwamuna ndi maganizo.

Mulingo 3-4,5sm machende ndi kulemera kwa magalamu 20-30. Iwo ali mu thumba la khungu wotchedwa scrotum. Scrotal khungu inki kunja kugawa pakati pa mazira embryonic ndi msoko amene angakhale osiyana kwambiri mtundu pa khungu scrotal. Iwo ali ambiri sebaceous ndi thukuta zopangitsa kuti Kugawilidwa kwanthaka amene ali ndi fungo yeniyeni.

Kale mu miyezi wa testes yoopsa anayamba kupanga. Iwo zili pafupi impso, ndiyeno iwo ukutsika mu scrotum lapansi. funso n'lakuti, Kodi mfundo kusintha? Likukhalira, ndi lalikulu kwambiri. chakuti chitukuko cha umuna chofunika kutentha otsika - penapake 34 ° C. Mwachibadwa, kutentha izi sizingatheke mwa thupi ndipo scrotum anali kumbali chabe zinthu oyenera mapangidwe spermatozoa. Motero, amuna amene amatsogolera moyo wongokhala, ndi kudzuka nthawi, kuti maliseche anali kutali kwa thupi otentha ndipo utakhazikika.

The testes amacheza ndi chipolopolo ndipo anapatukana ndi kugawa a. Anapachikidwa iwo pa chingwe spermatic, chomwe nawonso, cha vas ndi deferens, minofu, mitsempha magazi ndi ziwiya lymph. Minofu, wotchedwa cremaster pansi kuchepetsa othandiza dzira kuti thupi malo ake omasuka umatilekanitsa thupi. Ankaoneka kuti basi amakhala kutentha mkati scrotum lapansi. Mu zikhalidwe ofunda, iwo agwa m'munsiyi, ndipo mu ozizira, pa mwake, ali omangika ku thupi. Komanso scrotum ndi munthu woyendera nthambi erogenous a anthu.

Dzira lili nyumba zingapo thandizo. Mwachitsanzo, mu epididymis kwa masabata awiri okhwima maselo umuna, kumene kupeza sayenda kutero. Kapangidwe ka testes motere: pansi pa tunica dzira chipolopolo ndi parenchyma. Amakhala lobes angapo (250 300) kuti ndizodzazidwa ndi tubules seminiferous. Aliyense Lobe iwo awiri kapena atatu, 70-90 mm m'litali, iwo apangidwe. Iwo zigwirizana epithelium seminiferous, limene umuna amapangidwa.

Kapangidwe ka testes ndi gawo la cloves ndi minofu connective limene limatulutsa mahomoni wamwamuna - testosterone. Iwo likukhalira kuti testes ndi ntchito awiri - ndiwo endocrine zopangitsa, mahomoni ndi zamphamvu mwachindunji mu magazi, ndipo pa nthawi yomweyo - excretory England, yotuluka umuna kunja. Kapangidwe ka testes ndi kuti yekha umuna ndi wokhazikika mwa iwo. Mbali madzi a dontho la umuna aumbike mwa Prostate secretions ndi vesicles seminal. The prostate ili pafupi peritoneum, mu nkhani ya matenda dokotala akuona kuti kudzera rectum. Amalima madzimadzi otchedwa Prostatic madzi. Mu maonekedwe - ndi madzi woyera ndi fungo khalidwe, chomwe pafupi kwathunthu zomanga thupi.

vesicles umuna ali pamwamba pa prostate. Iwo wophatikizidwa limba, pafupifupi kukula kwake - 5h2h1 kuona thovu kutulutsa madzi chikasu ndi kukhuthala apamwamba, amene facilitates kayendedwe ka umuna ..

Monga tanenera kale, epididymal umuna kusasitsa chikuchitika, apa iwo zasungidwa. Kapangidwe komanso zizindikiro testis wamwamuna tubules seminiferous, amene kuphatikiza kupanga 15 tubules efferent loyenda mu epididymis.

Popeza umuna amatuluka mu machende, sangakhoze kusuntha paokha, gulu lawo ndi chifukwa kuthamanga mu machende okha chifukwa mapangidwe umuna latsopano.

njira Ejaculatory ndi kupitiriza epididymis lapansi. Kukwezeleza umuna ejaculatory njira anapanga mafunde lolingana kuchepetsa minofu.