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{"id":7353,"date":"2015-12-24T10:08:17","date_gmt":"2015-12-24T08:08:17","guid":{"rendered":"https:\/\/www.coolkadin.com\/?p=7353"},"modified":"2015-12-24T10:08:17","modified_gmt":"2015-12-24T08:08:17","slug":"3-haftalik-gebelik-hamilelik","status":"publish","type":"post","link":"https:\/\/www.coolkadin.com\/3-haftalik-gebelik-hamilelik.html","title":{"rendered":"3 HAFTALIK GEBEL\u0130K (HAM\u0130LEL\u0130K)"},"content":{"rendered":"

\u00dc\u00c7 HAFTALIK GEBEL\u0130K<\/strong><\/p>\n

3. hafta hamilelikte anne aday\u0131nda meydana gelen de\u011fi\u015fiklikler nelerdir?<\/strong><\/p>\n

Folik\u00fcl, yumurtal\u0131kta geli\u015ftikten sonra \u00e7atlar. \u00c7atlamas\u0131yla birlikte yumurta h\u00fccresi serbest kal\u0131r. Genellikle ayn\u0131 taraftaki fallop t\u00fcp\u00fcn\u00fcn sa\u00e7aklar\u0131 ile i\u00e7eriye al\u0131n\u0131r. Burada t\u00fcp\u00fcn i\u00e7ine do\u011fru ilerler. Hamileli\u011fin meydana gelebilmesi i\u00e7in yumurtlama olu\u015ftuktan sonraki ilk saatlerde yumurta h\u00fccresinin, spermlerle birle\u015fmesi gerekir. Bir yumurta h\u00fccresinin \u00e7evresini \u00e7ok say\u0131da sperm h\u00fccresi sarabilir. Ancak bu sperm h\u00fccrelerinden yaln\u0131zca bir tanesi yumurta h\u00fccresi i\u00e7ine girebilir.<\/p>\n

Yumurta h\u00fccresini i\u00e7eri alan fallop t\u00fcp\u00fc sa\u00e7aklar\u0131, devaml\u0131 hareket halindedir. Bu sebeple de yumurta h\u00fccresi serbest kald\u0131\u011f\u0131 anda hemen fallop t\u00fcplerinden i\u00e7eri al\u0131n\u0131r. Burada t\u00fcp\u00fcn i\u00e7indeki t\u00fcyc\u00fcklerin hareketi sayesinde yumurta h\u00fccresi rahme do\u011fru ilerler. Burada sperm h\u00fccreleri haz\u0131r bir \u015fekilde yumurtay\u0131 bekliyordur. Yumurta ve sperm kar\u015f\u0131la\u015ft\u0131\u011f\u0131nda, spermler aras\u0131ndaki en g\u00fc\u00e7l\u00fc sperm, yumurta h\u00fccresinin i\u00e7erisine al\u0131n\u0131r.<\/p>\n

Sperm h\u00fccrelerinin vajinadan yumurta h\u00fccresine ula\u015fabilmeye kadar ge\u00e7irdikleri s\u00fcre, yakla\u015f\u0131k olarak 10 sattir. 10. saatte yumurta h\u00fccresine ula\u015fmay\u0131 olduk az sperm ba\u015far\u0131r. Spermlerin yumurta h\u00fccresinin i\u00e7ine girebilme sava\u015f\u0131 24 saat boyunca devam eder. Bu s\u00fcrenin sonunda yaln\u0131zca tek bir sperm h\u00fccreye girebilir. Yumurta h\u00fccresine giri\u015f a\u015famas\u0131 da yakla\u015f\u0131k olarak 20 dakika s\u00fcrer. Di\u011fer spermlerin art\u0131k \u015fans\u0131 kalmam\u0131\u015ft\u0131r.<\/p>\n

Sperm h\u00fccreleri, vajinaya ula\u015ft\u0131klar\u0131 anda burada do\u011fal olarak mevcut olan asit ortam ile sava\u015f\u0131rlar. Bu kar\u015f\u0131la\u015fmada, meni salg\u0131s\u0131n\u0131n i\u00e7inde asit n\u00f6tralize edici maddenin olu\u015fu, spermlerin sava\u015f\u0131na yard\u0131m eder. Vajinadan rahim a\u011fz\u0131 i\u00e7ine yumurtlama s\u0131ras\u0131nda salg\u0131lanan progesteron hormonu sayesinde spermler rahatl\u0131kla ge\u00e7ebilir. Ge\u00e7ebilen spermler, ilk olarak rahim i\u00e7ine girer, buradan da fallop kanallar\u0131n\u0131n i\u00e7ine do\u011fru yol al\u0131rlar. Yumurta h\u00fccresi, sperm h\u00fccresinin yolu bulmas\u0131nda yard\u0131mc\u0131d\u0131r. Yumurta h\u00fccresi ta\u015f\u0131d\u0131\u011f\u0131 varsay\u0131lan negatif y\u00fck ile pozitif y\u00fckl\u00fc sperm h\u00fccrelerini kendisine do\u011fru \u00e7eker.<\/p>\n

Fallop t\u00fcp\u00fcn\u00fcn i\u00e7ine do\u011fru yol ald\u0131klar\u0131nda, anormal \u015fekilli, hareketsiz ya da g\u00fc\u00e7s\u00fcz sperm h\u00fccreleri \u00e7oktan elenmi\u015ftir.<\/p>\n

Yumurta h\u00fccresine kadar gidebilen sperm h\u00fccreleri, ortalama bir boydaki insan\u0131n 5 km. yol gitmesi kadar bir yol kat eder. Oransal olarak elbette. Bu sperm h\u00fccreleri i\u00e7in olduk\u00e7a uzun bir yoldur. Bu yolu gidebilmek de sperm h\u00fccreleri aras\u0131nda en enerjik ve en h\u0131zl\u0131 olan spermlere d\u00fc\u015fer.<\/p>\n

Sperm h\u00fccreleri, Fallop t\u00fcp\u00fc i\u00e7inde hareket eder. Bu t\u00fcp\u00fcn i\u00e7inde bulunan s\u0131v\u0131lar da spermlerin ilerlemesini sa\u011flar. Olduk\u00e7a enteresan bir \u015fekilde, ayn\u0131 s\u0131v\u0131 ve t\u00fcp i\u00e7indeki t\u00fcyc\u00fckler ters y\u00f6nde hareket eden yumurta h\u00fccresi ve sperm h\u00fccrelerinin birbirleri ile kar\u015f\u0131la\u015fmalar\u0131n\u0131 sa\u011flamak i\u00e7in ayn\u0131 zamanda her iki y\u00f6nde hareketi kolayla\u015ft\u0131r\u0131c\u0131 etki g\u00f6sterirler.<\/p>\n

Yumurta h\u00fccresinin i\u00e7ine girmeye aday sperm h\u00fccresi, yumurta h\u00fccresinin d\u0131\u015f kabu\u011funu ge\u00e7ebilecek kalibrededir. Spremin ba\u015f b\u00f6l\u00fcm\u00fcnde olan eritici maddeler hasebeiyle bu a\u015famay\u0131 da ge\u00e7er.<\/p>\n

Sperm h\u00fccresi, yumurta h\u00fccresinin kabu\u011funu i\u00e7eriye girmek i\u00e7in eritir. Girer girmez de, eritti\u011fi b\u00f6lgeden ba\u015fka sperm girmesin diye bu b\u00f6lge dakiklar i\u00e7erisinde tamir edilir.<\/p>\n

Sperm h\u00fccresi yumurta h\u00fccresine girmesinin ard\u0131ndan, yumurta h\u00fccresi negatif y\u00fckl\u00fc pozisyonundan, pozitif y\u00fckl\u00fc haline ge\u00e7er. Pozitif y\u00fckl\u00fc olmas\u0131, \u00f6b\u00fcr sperm h\u00fccrelerini iter. Yumurta h\u00fccresi zaten se\u00e7imini yapm\u0131\u015f oldu\u011fu i\u00e7in di\u011fer spermler uzakla\u015f\u0131r.<\/p>\n

3. hafta hamilelik haftas\u0131nda bebe\u011fin ultrason g\u00f6r\u00fcnt\u00fcs\u00fc nas\u0131ld\u0131r?<\/strong><\/p>\n

3.-hafta-gebelik<\/strong><\/p>\n

Gebelikle \u0130lgili Sorular<\/strong><\/p>\n

Sperm h\u00fccresi, i\u00e7eri girdi\u011fi zaman kuyru\u011fu da onunla birlikte gitmez. Yani sperm h\u00fccresi, kuyru\u011funu d\u0131\u015far\u0131da b\u0131rak\u0131r. Yumurta h\u00fccresi ile sperm h\u00fccresi aras\u0131ndaki boyut fark\u0131 ise \u015f\u00f6yle a\u00e7\u0131klanabilir: olduk\u00e7a y\u00fcksek bir binaya giren bir ki\u015fi. Sperm h\u00fccrelerini i\u00e7eri girer girmez, g\u00f6revini yerine getirmek i\u00e7in i\u015fe ba\u015flar. Kromozomlar\u0131n\u0131 teslim edece\u011fi yeri arar ve yumurta h\u00fccresinin \u00e7ekirde\u011fine ula\u015f\u0131r. Sperm h\u00fccresi i\u015fte bu h\u00fccre \u00e7ekirde\u011fine ula\u015ft\u0131\u011f\u0131 zaman, kromozomlar birle\u015fmeye ba\u015flar. 23 tane kromozoma sahip yumurta h\u00fccresi ve 23 tane kromozoma sahip sperm h\u00fccresi birle\u015fmeye ba\u015flar. K\u0131sa s\u00fcrede bu birle\u015fme tamamlan\u0131r. Art\u0131k yeni bir canl\u0131 olu\u015fmu\u015ftur.<\/p>\n

Genetik birle\u015fmenin sona ermesinin ard\u0131ndan Fallop t\u00fcp\u00fcnden rahim i\u00e7ine do\u011fru olan yolculuk s\u00fcrerken, h\u00fccresel \u00e7o\u011falma da bir yandan ba\u015flamaktad\u0131r. Bu \u00e7o\u011falma ile ilk \u00f6nce tek h\u00fccreden olu\u015fan yeni canl\u0131n\u0131n mikroskopik g\u00f6r\u00fcn\u00fcm\u00fcnde de\u011fi\u015fmeler meydana gelir. 2, 4, 8, 16 h\u00fccre \u015feklinde meydana gelen \u00e7o\u011falma neticesinde olu\u015fan yap\u0131ya mikroskopik g\u00f6r\u00fcn\u00fcm\u00fc sebebiyle morula (\u201cdut\u201d) denilmektedir. Morula evresinden gelen canl\u0131 neredeyse rahim i\u00e7ine de ula\u015fm\u0131\u015ft\u0131r.<\/p>\n

Sperm h\u00fccrelerinde hem X hem de Y kromozomu olabilir. Yumurta h\u00fccreleri ise yaln\u0131zca ve hep X kromozomu ta\u015f\u0131maktad\u0131rlar. Yumurta h\u00fccresinin i\u00e7ine girebilmi\u015f sperm h\u00fccresi X kromozomu ta\u015f\u0131yor ise; yeni canl\u0131 di\u015fi, Y kromozomu ta\u015f\u0131yor ise; erkek olacakt\u0131r. Bebe\u011fin cinsiyetini belirleyen baba aday\u0131d\u0131r.<\/p>\n

Bebe\u011fin cinsiyeti belirlenebilir mi?<\/strong><\/p>\n

Bebe\u011fin cinsiyeti t\u00fcketilen besinlerle, yap\u0131lan egzersizlerle ya da cinsel ili\u015fki g\u00fcn\u00fc ve \u015fekli ile belirlenecek bir \u015fey de\u011fildir.<\/p>\n

Baz\u0131 durumlar cinsiyet belirlemede rol oynayabilir. \u0130klimsel \u00f6zellikler, ya\u015fan\u0131lan alan gibi etkenler bu konuda rol oynayabilse de do\u011fa taraf\u0131ndan y\u00f6netilirler ve belli bir hamilelik i\u00e7in adapte edilemezler.<\/p>\n

Bebe\u011fin cinsiyetini belirlemek ile ilgili vaad veren kurulu\u015flar mevcuttur. Verdikleri vaad ger\u00e7ekle\u015fmez ise para iadesi yapacaklar\u0131ndan s\u00f6z eder. Bu kurulu\u015flar adaylardan para talep eder, ba\u015far\u0131 \u015fanslar\u0131 zaten %50 oldu\u011fu i\u00e7in her \u015fekilde avantajl\u0131 \u00e7\u0131karlar.<\/p>\n

G\u00fcn\u00fcm\u00fcz ko\u015fullar\u0131nda bebe\u011fin cinsiyetinin bilin\u00e7li bir \u015fekilde tercih edilmesi sadece t\u00fcp bebek y\u00f6ntemi ile yap\u0131lmaktad\u0131r. T\u00fcp bebekle d\u00fcnyaya gelecek olan bebe\u011fin cinsiyetinin tercih edilebilmesi ise: yasal ve ahlaki olarak sadece belli bir cinsiyete ait bir hastal\u0131\u011f\u0131n, \u00e7ocukta olu\u015fma riski kesin ise, uygulanmaktad\u0131r.<\/p>\n

\u00c7o\u011ful gebelik nas\u0131l olu\u015fur?<\/strong><\/p>\n

Yumurtlama s\u0131ras\u0131nda bir ya da iki yumurtal\u0131kta birden fazla say\u0131da yumurta h\u00fccresi olgunla\u015f\u0131r. Bu olgunla\u015fan h\u00fccreler d\u00f6llenirse e\u011fer, \u00e7o\u011ful gebelik olu\u015fur.<\/p>\n

\u015eayet d\u00f6llenme iki ayr\u0131 sperm ve iki ayr\u0131 yumurta h\u00fccresiyle olu\u015fur ise, \u00e7ift yumurta ikizi olu\u015fur. \u00c7ift yumurta ikizlerinin cinsiyeti ayn\u0131 olabilir, ya da farkl\u0131 olabilir. Genetik yap\u0131lar\u0131 birbirinden farkl\u0131 olmaktad\u0131r. Yani, farkl\u0131 zamanlarda do\u011fmu\u015f karde\u015fler kadar birbirine benzerler.<\/p>\n

Tek bir yumurta h\u00fccresi d\u00f6llenir, ard\u0131ndan d\u00f6llenen bu h\u00fccre ikiye ayr\u0131l\u0131r ve ayr\u0131 ayr\u0131 canl\u0131lar olarak \u00e7o\u011fal\u0131rlar ise bu durumda tek yumurta ikizi olu\u015fur.<\/p>\n

Tek yumurta ikizleri, genetik olarak birbirleriyle tamamen ayn\u0131 olmaktad\u0131r. Bu sebeple de; cinsiyetleri, kan gruplar\u0131, sa\u00e7, g\u00f6z rengi gibi genetik olarak belirlenmi\u015f \u00f6zelliklerin ayn\u0131 oldu\u011fu iki insan meydana gelir.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00dc\u00c7…<\/p>\n","protected":false},"author":4,"featured_media":7356,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[4665,4663,4666,4664,4660,4662,4661,4667],"_links":{"self":[{"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/posts\/7353"}],"collection":[{"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/comments?post=7353"}],"version-history":[{"count":0,"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/posts\/7353\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/media\/7356"}],"wp:attachment":[{"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/media?parent=7353"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/categories?post=7353"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coolkadin.com\/wp-json\/wp\/v2\/tags?post=7353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}