Amuna ndi akazi gonads

Kugonana zopangitsa za thupi kuchita angapo ntchito zofunika: kudziŵa makhalidwe thupi la pansi ndipo ndi udindo kubalana. Iwo yodziwika ndi mtundu losakanizika wa katulutsidwe, monga iwo amapanga ndi maselo oberekera, timadzi yeniyeni. Amuna ndi akazi gonads ndi zina zapadera. Komabe, lamulo la zochitika ikuchitika zopangitsa gonadotropic mahomoni pituitary.

Male kugonana England. zopangitsa kugonana Male awa akuimira testes, amene kutulutsa umuna (maselo ubereki), ndipo androgens (mahomoni wamwamuna zenizeni).

njira spermatogenesis zimachitika otchedwa maselo Leydig. Mapangidwe umuna pafupifupi mosalekeza - kuyambira ndi kutha msinkhu ndi kutha zaka 50 - 60 zaka (ili deta munthu), pamene testes manja, ndi ntchito yawo thupi limawola n'kusanduka pang'onopang'ono. maselo okhwima nyongolosi mu epididymis.

Male umuna tichipeza mutu, pakhosi, mchira ndi bakiteriya udzakhalire, amene akhoza kusuntha. Maselo ali otchedwa mutu acrosome muli michere kuti awononge chipolopolo dzira. Mu wamkazi nyini umuna mwina yogwira masiku 6.

Koma mahomoni kugonana, zofunika kwambiri ndi testosterone mankhwala ndi Lamulo luteinizing timadzi pituitary. timadzi Izi n'zofunika pa kakulidwe ka thupi wamwamuna, monga Lili ndi udindo:

• ndi kuwonjezeka mu chitukuko yogwira ziwalo zoberekera pa unamwali;
• chitukuko cha thupi tsitsi la mtundu mwamuna;
• kusintha kamvekedwe ka mawu;
• mbewuzi ndi chitukuko minofu;
• fupa mapangidwe;
• maonekedwe a anyamata a anyamata;

Monga mukuonera, ndi zopangitsa kugonana amuna amagwira ntchito zofunika kwambiri. Mwachitsanzo, ngati kulakwila ndondomeko spermatogenesis munthu sangabereke ana. Ndipo ndi kusowa kwa timadzi kugonana akufotokozera otchedwa syndrome - munthu anaona mafunsidwe a mafuta mu mawere, m'chiuno ndi matako, ziwalo kukula yakusatetezeka, kumaliseche ndi underdeveloped, kusowa chilakolako cha kugonana, kukhala kuvutika m'maganizo.

Female zopangitsa kugonana. The gonads akazi awa akuimira mazira omwe ndi dzira lokhwima ndipo apanga wamkazi mahomoni: esitirojeni ndi progesterone. Aliyense n'kuwasanganiza wamkazi tichipeza mipira iwiri: stroma ndi kotekisi.

follicles yamchiberekero pamisinkhu yosiyanasiyana kusasitsa zili kotekisi lapansi. Ndipo ngati njira ya mapangidwe umuna mwamuna wa moyo, akazi maselo onse kugonana anaika kale pa chitukuko embryonic. M'mwezi kukula dzira limodzi lokha kuti akuswa follicle ndipo ukusunthira pansi chubu mazira. M'malo mwa mitundu ya follicle ndi corpus luteum, kenako kwasanduka woyera ndi, kenako lofalitsidwa pa malo linagwira amakhalabe yaing'ono chilonda.

khansa maliseche mu akazi, ndi kutulutsa mahomoni yeniyeni progesterone ndi esitirojeni. Estrogens ndi chiwerengero cha ntchito:

• ali ndi udindo kuwonjezeka kunja ndi mkati ziwalo zoberekera pa unamwali;
• pilosis anapanga mtundu wamkazi;
• imathandizira kukula kwa zopangitsa za mammary;
• ziletsa kukula fupa m'litali;
• Zimachititsa njira ya kaphatikizidwe wa mafuta, amene adayikidwa pa chifuwa, mimba, ntchafu ndi matako - makamaka thupi mkazi;

Progesterone anamasulidwa ndi corpus luteum. Ntchito yake yaikulu - ndi kukonzekera endometrium la chiberekero kuti kumayambiriro dzira. timadzi ichinso amakhudza zopangitsa mammary, kuwachititsa pathupi.

Ngati gonads akazi sizikugwira ntchito bwino, ndi zinadzala ndi osabereka, anachedwa chitukuko cha kugonana, zoopsa maganizo.