Plasenta (Yun. plakus \u2014 kul- cha), bola o’rni \u2014 homiladorlik davri- da hosil bo’ladigan va homila b-n ona organizmini bir-biriga bog’lab, ular o’rtasida moddalar almashinuvini ta’- minlaydigan organ. Homila P. orqali ona qonidan kislorod hamda oziq modda- lar olib, unga parchalanish mahsulotlari va karbonat angidrid ajratadi. P. homilaga har xil moddalar kelishini boshqarib, to’siq vazifasini ham o’taydi. P.da fermentlar va vitaminlar bo’ladi; unda ona organizmiga ta’sir etuvchi gor- monlar (gonadotropin, estrogen, proge- steron) va b. moddalar sintezlanadi. P. homiladorlikning 4-oyida to’liq shak- llanadi: normal rivojlangan homila P.si yumaloq, qalin, yumshoq, shakli kulchaga o’xshaydi. Homila P.ga kindik yoki kindik tizimchasi orqali birikadi. P.ning ikkita yuza-si: bachadon devori- ga qaragan ona yuzasi (bazal plastinka) va ichkariga \u2014 amnion (homila qopi) bo’shlig’iga qaragan homila yuzasi bo’ladi. Kindik qon tomirlar b-n shu homila yuzasiga bi-rikib turadi. P. funktsi- yasining buzilishi homiladorlikda turli asoratlar-ga, mas, bolaning chala tug’ilishi, P.ning erta ajralishi, homiladorlik toksikozlari va b.ga sabab bo’ladi (yana q. Yo’ldosh). O’simliklar P.si gulli o’simliklarda urug’kurtakli tuguncha ichidagi o’simta; qirqqulokdoshlarda sporangiyli bo’rtma. P. orqali kurtak ona o’simlik b-n bog’lanib turadi.<\/p>\n","protected":false},"excerpt":{"rendered":"
Plasenta (Yun. plakus \u2014 kul- cha), bola o’rni \u2014 homiladorlik davri- da hosil bo’ladigan va homila b-n ona organizmini bir-biriga bog’lab, ular o’rtasida moddalar almashinuvini ta’- minlaydigan organ. Homila P. … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":99837,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[226],"tags":[],"class_list":["post-119061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-p-harfi","entry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"ru","enabled_languages":["uz","kr","ru"],"languages":{"uz":{"title":true,"content":true,"excerpt":false},"kr":{"title":false,"content":false,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/119061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/comments?post=119061"}],"version-history":[{"count":1,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/119061\/revisions"}],"predecessor-version":[{"id":119085,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/posts\/119061\/revisions\/119085"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media\/99837"}],"wp:attachment":[{"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/media?parent=119061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/categories?post=119061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/milliycha.uz\/ru\/wp-json\/wp\/v2\/tags?post=119061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}