Chikhodzodzo cha Fetal

Monga momwe tikudziwira, pa intrauterine kukula kwa mwana wamtsogolo wothiridwa ndi nthata za fetus. Izi zimaphatikizapo amnion, chosalala chofewa ndi mbali ya decidua (endometrium, yomwe imachitika kusintha pakati pa mimba). Zigawo zonsezi, pamodzi ndi placenta zimapanga chikhodzodzo cha fetus.

Amayi ambiri amtsogolo amaganiza kuti placenta ndi chikhodzodzo ndi chimodzimodzi. Ndipotu, izi siziri choncho. The placenta ndi mawonekedwe odziimira omwe amapereka zakudya ndi mpweya ku fetus. Ndi kudzera mwa iye kuti mwana wakhanda amagwirizana ndi thupi la mayi.


Chikhodzodzo cha fetus ndi chiyani?

Kukula kwa ziwalo izi zimayamba nthawi yomweyo . Motero, amnion ndi memphane yochepa kwambiri, yomwe imakhala ndi timagulu tomwe timagwiritsa ntchito.

Choriyumu yosalala imakhala pakati pa amnion ndi decidua. Lili ndi mitsempha yambiri ya mitsempha.

Chiwalochi chimakhala pakati pa dzira la fetal ndi myometrium.

Zomwe zimayambitsa fetal chikhodzodzo ndi kukula kwake ndi kukula kwake, komwe kumasiyana ndi masabata a mimba. Kotero, pa tsiku la 30, kukula kwa chikhodzodzo cha fetus ndi 1 mm ndiyeno kumawonjezeka ndi 1 mm tsiku.

Kodi ntchito za chikhodzodzo cha fetus ndi ziti?

Atanena za chomwe chikhodzodzo cha fetus chimawoneka, tidzatha kudziwa zomwe ntchito zake zikuluzikulu ziri. Mkulu wa iwo ndi: