Uhlelo zokuzala zamadoda nabesifazane

Izimpawu ukuthi ukuhlukanisa indoda kanye nowesifazane, abaningi. Lokhu sengqondo, futhi ubuntu nokuhlukile bokuphila, futhi lesi sibalo yokwakheka. Ezingafani kukho kokubili abesilisa nabesifazane, futhi izici zobulili bangaphandle zangaphakathi.

uhlelo wokuzala - kuba bawaphendule we kwemigwamanda enesibopho inqubo yokuzala. Abesilisa nabesifazane asebeneminyaka azifani. Mayelana naleli qembu avelele zibonakaliso ezimbili:

• eyinhloko. Lezi zihlanganisa izidumbu ngqo obhekene kokukhulelwa, wokukhula kwengane esiswini kanye kumiswa gametes. Ngakho, amadoda kulabo izici zihlanganisa indlala wendlala yabesilisa, ezikhiqiza amaqanda kanye umthondo, futhi abesifazane - kwesibeletho, sangasese, njll Lemigwamanda zinemisebenzi eyahlukene zibuye babe izakhiwo ezahlukene;

• izimpawu yesibili kukhona labo, namanye amalungu kanye ukuphila kohlanga lwesintu, kodwa sehluke. Lezi zinto zihlanganisa nezindlala mammary, imisipha kanye skeleton, iziboya emzimbeni, ukukhwela kwezwi, izicubu ongama, nabanye.

Ngokocansi owesifazane System

Sici Its main - kumiswa amaqanda, ngawo kokukhulelwa kwenzeka, ukubunjwa nokuthuthukiswa kwezinhlangano ephilayo entsha.

Gametes (ubulili amaseli) liyakhula amaqanda amabili angaphezu ekujuleni ukhalo. Le nqubo Sibonga kungenzeka ukuba isenzo hormone follicle-inkanuko, okuyinto kuveza indlala pituitary. Duzane Iqanda bubble kwakhiwa phezu esibelethweni (i-follicle), okuyinto cishe nane izinsuku Ukuvutha. Lokhu kuvumela gamete bangene tube fallopian, lapho ngaphansi kwethonya ukugeleza uketshezi ihamba maqondana kwesibeletho. Push ezikhiqiza amaqanda Iqanda abavuthiwe njalo emavikini amane. Yilokho uhlelo zokuzala ungowesifazane ulungela ukuze sithele.

Ulwelwesi lwamafinyila kwesibeletho senziwa mkhulu, inani imithambo yegazi nemithambo ye izakhi therein luyanda kakhulu. Uma, lapho amashubhu fallopian, ngenxa sexual gamete is avundiswa ngu isidoda, kukhona amasha-embryonic stem cells. It inamathela kuya endometrium, okuyinto ke ucala kutfutfukisa okwengeziwe, ukuvula ekugcineni ibe yingane. Kwaphela sokukhulelwa nokubeletha. Isithelo siyeza ukukhanyisa ngokusebenzisa sangasese.

Esimeni lapho elibona nxazonke gametes (yabesilisa enezindlela ezihlukahlukene female) akwenzekanga, iqanda ngegazi futhi uqweqwe lwamafinyila ukwenqaba kwesibeletho. Le nkathi, ozobakhona izinsuku eziningana, ubizwa ngokuthi "owesifazane esesikhathini". Ngalesi sikhathi, uhlelo zokuzala asitholayo iyehla iyenyuka encane hormone, futhi umphumela waba ukuthi owesifazane bangezwa aphansi ubuhlungu besisu futhi azizwe kabi. Ngemva kwesikhathi ethile e esibelethweni uqala kabusha ziyaphuma gamete follicle.

Owesilisa uhlelo zokuzala

Owesilisa uhlelo zokuzala siqukethe Ingaphandle (the scrotum, amasende futhi umthondo) kanye izitho zangaphakathi (wendlala kanye vesicles kwesidoda).

Amasende - a sex nezindlala wesilisa, okuyizinto umzimba ezimbili ezincane. Ezibekwe the scrotum. testes Daily ukukhiqiza lenqwaba ubulili amangqamuzana amasha - isidoda, ehlanganisa umsila kanye nenhloko. Ngaphezu kwalokho, ophethe amandla ukwenziwa androgens, kanjalo wenza njengoba endocrine nezindlala.

Phakathi bezoziphatha isidoda hambisa ngokusebenzisa deferens vas futhi kuhlanganiswe uketshezi ethakwa-accessory nezindlala. Ngakho, isidoda amadoda - isidoda.

Imbobo lapho isidoda asuka scrotum kufanele ibe ngaphakathi komgodi ongaphakathi kwamathumbu futhi ukuphuma zingene urethra - urethra. Kuyinto tube mncane okuyinto ngokufanele ngaphakathi umthondo futhi kuholela kusukela kwesinye ngaphandle.

Isidoda amaseli athwale impahla ebaluleke kakhulu lezinceku - chromosome.

uhlelo womuntu zangasese yakhelwe ukufeza umsebenzi obaluleke kakhulu - ukukhiqizwa kabusha.