The nemamiriro manhu

Manhu kana, mune mamwe mashoko, testes vari zvemukati vanhurume nezvomukati. The nemamiriro testes ane hunyambiri basa: paumbwe dzisingaoneki uye incretion pakati mahormone. mahormone izvi kupa varume nevamwe rume Kutarira, inzwi yakadzika, kuvapo chiso bvudzi. Ivo kuona chaiwo mukono maitiro uye mafungiro.

Standard Kukura 3-4,5sm manhu aine uremu 20-30 magiramu. Vari homwe neganda inonzi scrotum. Scrotal ganda pigmented kunze partition pakati mazai embryo ndiyo musono izvo zvinogona kunge zvakasiyana ruvara kubva scrotal ganda. It ane vazhinji sebaceous uye ziya omumuviri, iro yavaive iyo ine yakananga kunhuwa.

Nechekare mwedzi fetus testes kutanga dzinotanga kuumbika. Vari pedyo itsvo, uye ipapo uchaburukira scrotum. The mubvunzo unomuka, chii chiri kurehwa zviri kuchinja ichi? Zvakaratidza, yakakura chaizvo. Chokwadi ndechokuti kukura dzisingaoneki zvaida tembiricha yakaderera - kumwe muna 34 ° C. Sezvingatarisirwa, tembiricha iri hakungagoni kukwanisika mukati mumuviri uye scrotum ikatevera chete vakakodzera ezvinhu kuti paumbwe spermatozoa. Saka, varume vanotungamirira ndakagara mararamiro, kuti asimuke nguva nenguva, zvokuti manhu kure rinopisa muviri uye haachandidi.

The testes vari takapoteredzwa goko uye vakaparadzaniswa mumwe pedyo partition. Akaturikwa pamusoro spermatic tambo randinogara, uyewo, pakati vas deferens, tsandanyama, tsinga, ropa uye node midziyo. Muscle, yainzi cremaster pasi mukuderedza it zai kuti muviri wayo vagadzikana nzvimbo anoparadzanisa kubva mumuviri. Airatidzika kuva rwoga anorambira tembiricha mukati scrotum. In inodziya ezvinhu, vanogumburwa pazasi, uye chando, nekusiyana, vari akasungirirwa kune muviri. Uyewo, kuti scrotum ndiyo imwe erogenous mapazi vavanhu.

Egg ane wandei rutsigiro zvivako. Somuenzaniso, muna epididymis kwevhiki mbiri dzakura dzisingaoneki masero, apo ivo vawane zvakakodzera kufamba. The nemamiriro testes sezvinotevera: pasi tunica goko zai ndiro parenchyma. Inoitwa vakawanda lobes (250 kusvika 300) kuti vakazadzwa seminiferous tubules. In nomumwe Lobe wavo ari maviri kana matatu, 70-90 mm pakureba, ivo akapeta. Zvinosanganisira seminiferous epithelium, umo dzisingaoneki anobudiswa.

The nemamiriro testes ndechokuti chikamu clove chinhu connective zvinyama kuti unobereka makono mahormone - testosterone. Zvakaratidza kuti testes vane mabasa maviri - ndivo kwemakemikari anobudiswa omumuviri, hormone ndokutyaira zvakananga kupinda ropa, uye panguva imwe chete - excretory shwanu, achitungamirira kunze nourume kunze. The nemamiriro testes ndechokuti dzisingaoneki chete vari kuumbwa mazviri. The mvura mugove urume achiumbwa pamusoro prostate secretions uye seminal vesicles. Kweprostate gland riri pedyo peritoneum, panyaya chirwere chiremba anonzwa izvozvo kuburikidza mugaranhoko. Unobereka Urume inonzi prostatic muto. In nechitarisiko - iri chena mvura ine maitiro kwakanaka randinogara zvinenge zvachose mapuroteni.

Seminal vesicles pamusoro kweprostate gland. It aiwanzopiwa wokushanda Nhengo, ayo anofungidzirwa saizi - 5h2h1 ona matema zvakabudisa yellowish mvura ine yepamusoro viscosity, izvo hwezvekukurukurirana kufamba dzisingaoneki ..

Sezvambotaurwa, epididymal dzisingaoneki kuibvisa anotora nzvimbo, pano akachengetwa. The mamiriro zvakare unotora nhongo testis seminiferous tubules izvo batanidza uye kuumba anenge 15 efferent tubules inoyerera kupinda epididymis.

Sezvo dzisingaoneki anobudiswa ari manhu, haagoni kufamba voga, kufamba kwavo imhaka yakawedzera kuomesa ari manhu pachavo nokuda nokuumbwa dzisingaoneki itsva.

Ejaculatory nzira dziri kuenderera epididymis. Dzisingaoneki Kukwidziridzwa ejaculatory nzira akaita mafungu zvinoenderana zvinoderedza tsandanyama.