著(zhu)床(chuang)是指受(shou)精卵在子宮(gong)內壁上(shang)定(ding)植并開始發育(yu)的過程(cheng)。同房本身一般不會(hui)影(ying)響受(shou)精卵著(zhu)床(chuang),但是一些因(yin)素可(ke)能會(hui)影(ying)響受(shou)精卵著(zhu)床(chuang)的成(cheng)功率。
著(zhu)(zhu)床(chuang)(chuang)(chuang)是指受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)在(zai)(zai)子(zi)(zi)宮(gong)(gong)內壁著(zhu)(zhu)床(chuang)(chuang)(chuang)生(sheng)長,成(cheng)為(wei)(wei)(wei)胎兒的(de)(de)(de)(de)過程(cheng)。在(zai)(zai)一(yi)般(ban)情況下,受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)會(hui)(hui)(hui)在(zai)(zai)受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)后的(de)(de)(de)(de)6-10天內著(zhu)(zhu)床(chuang)(chuang)(chuang)。而(er)同(tong)(tong)(tong)房(fang)(fang)(fang)的(de)(de)(de)(de)過程(cheng)中,會(hui)(hui)(hui)使(shi)子(zi)(zi)女性的(de)(de)(de)(de)宮(gong)(gong)頸口松弛,使(shi)精(jing)(jing)(jing)(jing)子(zi)(zi)更容易(yi)進入子(zi)(zi)宮(gong)(gong)內,提高受(shou)(shou)(shou)(shou)(shou)(shou)孕的(de)(de)(de)(de)機會(hui)(hui)(hui)。雖然(ran)存在(zai)(zai)一(yi)些(xie)(xie)傳統觀念認為(wei)(wei)(wei)同(tong)(tong)(tong)房(fang)(fang)(fang)可(ke)能(neng)會(hui)(hui)(hui)影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)受(shou)(shou)(shou)(shou)(shou)(shou)孕或者影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)的(de)(de)(de)(de)著(zhu)(zhu)床(chuang)(chuang)(chuang),但是科學(xue)研究表明,同(tong)(tong)(tong)房(fang)(fang)(fang)并不(bu)會(hui)(hui)(hui)直接影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)的(de)(de)(de)(de)著(zhu)(zhu)床(chuang)(chuang)(chuang)。著(zhu)(zhu)床(chuang)(chuang)(chuang)主要受(shou)(shou)(shou)(shou)(shou)(shou)到雌(ci)激(ji)素(su)和孕激(ji)素(su)等內分泌因(yin)素(su)的(de)(de)(de)(de)控制,以(yi)及受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)自身(shen)的(de)(de)(de)(de)質量等因(yin)素(su)影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)。無論是否同(tong)(tong)(tong)房(fang)(fang)(fang),受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)都有可(ke)能(neng)成(cheng)功著(zhu)(zhu)床(chuang)(chuang)(chuang)。然(ran)而(er),高強(qiang)度的(de)(de)(de)(de)性生(sheng)活(huo)可(ke)能(neng)會(hui)(hui)(hui)對受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)的(de)(de)(de)(de)著(zhu)(zhu)床(chuang)(chuang)(chuang)產生(sheng)一(yi)定(ding)的(de)(de)(de)(de)影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)。例(li)如,頻(pin)繁的(de)(de)(de)(de)性行為(wei)(wei)(wei)可(ke)能(neng)導致子(zi)(zi)宮(gong)(gong)內膜(mo)受(shou)(shou)(shou)(shou)(shou)(shou)損,從而(er)影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)在(zai)(zai)子(zi)(zi)宮(gong)(gong)內的(de)(de)(de)(de)著(zhu)(zhu)床(chuang)(chuang)(chuang)。此(ci)外,在(zai)(zai)某(mou)些(xie)(xie)特定(ding)情況下,如子(zi)(zi)宮(gong)(gong)內膜(mo)異位癥或者子(zi)(zi)宮(gong)(gong)肌(ji)瘤(liu)等病(bing)變存在(zai)(zai)時(shi),同(tong)(tong)(tong)房(fang)(fang)(fang)可(ke)能(neng)會(hui)(hui)(hui)對受(shou)(shou)(shou)(shou)(shou)(shou)精(jing)(jing)(jing)(jing)卵(luan)的(de)(de)(de)(de)著(zhu)(zhu)床(chuang)(chuang)(chuang)造(zao)成(cheng)影(ying)(ying)響(xiang)(xiang)(xiang)(xiang)。
綜上(shang)所述,同房并不會直接影響著床的過程。但是在同房時(shi),適(shi)當控制頻率(lv)和注意保護生(sheng)殖器官健康(kang)是很重(zhong)要(yao)的。如果(guo)夫(fu)妻長時(shi)間未(wei)能成功(gong)妊娠,建議咨詢醫生(sheng)進行相關檢查(cha),排除生(sheng)理或病理因素對(dui)著床的影響。
人們對于懷孕的時間的計算有所不同,當受精卵著床后還屬于是懷孕的早期,早孕的現象對于女性身體的影響是很大的,也給孕婦造成了很大的痛苦,因此要注意孕婦的生活方式,那么 受精卵著床能同房嗎 ?
受(shou)精(jing)卵(luan)著床能(neng)同(tong)(tong)(tong)(tong)房(fang)嗎(ma) 受(shou)精(jing)卵(luan)著床是(shi)可(ke)以同(tong)(tong)(tong)(tong)房(fang)的。一般建議懷(huai)孕早期第1、2、3個月的時(shi)候和后期第7、8、9個月的時(shi)候不要(yao)同(tong)(tong)(tong)(tong)房(fang),懷(huai)孕中期4、5、6可(ke)以同(tong)(tong)(tong)(tong)房(fang)的,但(dan)是(shi)動作(zuo)不要(yao)太粗暴,否則(ze)都可(ke)能(neng)導致流產的可(ke)能(neng)的.同(tong)(tong)(tong)(tong)房(fang)本(ben)身(shen)是(shi)不會造成胎兒(er)受(shou)到影響的。
受精過(guo)程(cheng)(cheng)約需24小時(shi)。當一(yi)個獲能(neng)的(de)精子進(jin)入一(yi)個次級卵(luan)(luan)母(mu)細胞的(de)透(tou)明帶時(shi),受精過(guo)程(cheng)(cheng)即開始(shi)。到(dao)卵(luan)(luan)原核(he)和(he)精原核(he)的(de)染色體融(rong)合在一(yi)起時(shi),則標志(zhi)著受精過(guo)程(cheng)(cheng)的(de)完(wan)成(cheng)。
卵裂和胚泡形成期間,受精卵的細(xi)(xi)胞(bao)發生了代(dai)謝變化(hua),滋養層細(xi)(xi)胞(bao)由覆蓋(gai)于鄰(lin)近細(xi)(xi)胞(bao)之上的突起粘附子內面。因為(wei)細(xi)(xi)胞(bao)表(biao)面可(ke)傳(chuan)遞環境影響(xiang)于胚胎,故細(xi)(xi)胞(bao)表(biao)面的變化(hua)可(ke)用攝(she)取營(ying)養、分(fen)化(hua)、準備著(zhu)床或有絲(si)分(fen)裂來解(jie)釋。
卵(luan)子(zi)(zi)受(shou)精(jing)后即(ji)開始(shi)有絲分裂(lie)(lie),并(bing)在一(yi)邊分裂(lie)(lie)的同(tong)時(shi)(shi)一(yi)邊向(xiang)子(zi)(zi)宮腔(qiang)方向(xiang)移動。受(shou)精(jing)卵(luan)在輸卵(luan)管內36小時(shi)(shi)后分裂(lie)(lie)為2個細(xi)胞(bao),72小時(shi)(shi)后分裂(lie)(lie)成(cheng)(cheng)16個細(xi)胞(bao),叫桑椹胚。受(shou)精(jing)后第4日,細(xi)胞(bao)團進入子(zi)(zi)宮腔(qiang),并(bing)在子(zi)(zi)宮腔(qiang)內繼續發育,這時(shi)(shi),細(xi)胞(bao)已分裂(lie)(lie)成(cheng)(cheng)48個細(xi)胞(bao),成(cheng)(cheng)為胚泡準備植入。胚泡可以分泌一(yi)種激(ji)素,幫助胚泡自己埋入子(zi)(zi)宮內膜。受(shou)精(jing)后第6-7日,胚泡開始(shi)著床(chuang)。著床(chuang)位置(zhi)多在子(zi)(zi)宮上1/3處,植入完成(cheng)(cheng)意(yi)味胚胎(tai)已安置(zhi),并(bing)開始(shi)形成(cheng)(cheng)胎(tai)盤(pan),孕(yun)育胎(tai)兒了。
受(shou)精(jing)卵的(de)(de)著床機制 1、隨著透明帶(dai)的(de)(de)局部穿孔或整個消失(shi),靠(kao)近內(nei)(nei)細胞群(qun)一端的(de)(de)滋養層迅速分裂,并(bing)貼近子宮內(nei)(nei)膜(mo)上皮。兩個相(xiang)對組(zu)織面的(de)(de)微小絨毛跨(kua)過空隙,廣泛地(di)呈指狀互(hu)(hu)相(xiang)交錯,隨后絨毛互(hu)(hu)相(xiang)交織。
2、透(tou)明帶必須脫(tuo)落、溶解(jie),胚泡(pao)(pao)才被解(jie)脫(tuo)出來,附著于(yu)子宮內膜。能使透(tou)明帶脫(tuo)落溶解(jie)的物質(zhi)有:①著床前胚泡(pao)(pao)所(suo)分泌的酶,如△-3?-HSD(羥甾類脫(tuo)氫酶)及17?-HSD;②在子宮內膜及子宮液中有類似兔胚激肽(tai)的子宮球蛋(dan)白抗原(yuan)。
3、排(pai)卵前雌(ci)激(ji)素使子宮內(nei)膜上(shang)(shang)皮(pi)(pi)增殖,排(pai)卵后低(di)水平的雌(ci)激(ji)素和孕(yun)激(ji)素才(cai)可使腺上(shang)(shang)皮(pi)(pi)增殖。黃體期孕(yun)激(ji)素加黃體分泌(mi)的小量雌(ci)激(ji)素,能引起腺上(shang)(shang)皮(pi)(pi)的分泌(mi)和間(jian)質細胞(bao)的增殖,成(cheng)為(wei)蛻膜樣變。
4、孕激素可使(shi)兩宮(gong)角的子宮(gong)內膜產(chan)生(sheng)胚激肽,它促(cu)使(shi)胚泡(pao)生(sheng)長(chang)發育,產(chan)生(sheng)絨毛,并使(shi)絨毛含重碳酸離子(HCO3),它與子宮(gong)內膜內的碳酸酐(gan)酶的化(hua)合作用,使(shi)局部(bu)(bu)呈高堿性,致局部(bu)(bu)內膜組織解體(ti),終使(shi)孕卵著床。
5、絨(rong)毛膜(mo)(mo)促性腺激素(HCG)在著床(chuang)前即由(you)胚泡分泌(mi),受精第10天(tian)在著床(chuang)的局(ju)部,HCG濃度可高達10000IU/L。HCG可使卵巢(chao)黃體變(bian)成妊娠黃體,妊娠黃體分泌(mi)的激素使子(zi)宮內膜(mo)(mo)變(bian)成蛻膜(mo)(mo),為孕卵著床(chuang)和發(fa)育創造條件。
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