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首頁(yè)懷孕懷孕初期癥狀胎教分娩產(chǎn)后恢復(fù)新生兒嬰兒期幼兒期學(xué)齡前教育親子幼兒園教案母嬰用品兒科疾病專題視頻

當(dāng)前位置: 主頁(yè) > 懷孕 > 懷孕周期 > 懷孕23周胎兒的發(fā)育介紹，什么是胎兒？

要點(diǎn)提示：說(shuō)到懷孕，相信大家也都是不陌生的，而懷孕的周期不同，胎兒的形狀其實(shí)也是不一樣的，那么，我們一起來(lái)看看，懷孕23周胎兒的發(fā)育介紹。懷孕23周胎兒的發(fā)育介紹胎兒形狀的發(fā)育

寶寶發(fā)育與母體變化

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本周飲食要點(diǎn)

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胎兒圖

說(shuō)到懷孕，相信大家也都是不陌生的，而懷孕的周期不同，胎兒的形狀其實(shí)也是不一樣的，那么，我們一起來(lái)看看，懷孕23周胎兒的發(fā)育介紹。

懷孕23周胎兒的發(fā)育介紹

胎兒形狀的發(fā)育：
一般來(lái)說(shuō)，懷孕到了23周，胎兒的長(zhǎng)度也是會(huì)有19cm的。而胎兒的體重則是大約會(huì)有400g。胎兒的雙頂徑的平均值為5.80±0.44cm，腹圍的平均值為17.90±1.85cm，股骨長(zhǎng)為4.21±0.41cm。
胎兒的骨骼發(fā)育：
到了懷孕的第23周。準(zhǔn)媽媽肚中的胎兒的骨骼和肌肉也是屬于長(zhǎng)好的。并且在這個(gè)時(shí)間內(nèi)，胎兒的視網(wǎng)膜也是屬于成型的。具有一定的微弱的視覺(jué)的。
胎兒皮膚的發(fā)育：
到了這個(gè)時(shí)間內(nèi)，胎兒的皮膚還是紅紅的、皺皺的，有點(diǎn)透明，不過(guò)看起來(lái)已經(jīng)好看多了。
胎兒的器官發(fā)育：
一般來(lái)說(shuō)到了23周胎兒的肺部的組織及血管正在發(fā)育當(dāng)中，為他的呼吸做準(zhǔn)備。

什么是胎兒？

胎兒，是指妊娠8周以后的胎體。
妊娠4～8周娩出的胎體為胚胎。
胚胎期重要器官逐漸形成，在胎兒期各器官進(jìn)一步發(fā)育成熟。
胎兒在妊娠28周以前娩出的現(xiàn)象稱為流產(chǎn)；孕28～37周前娩出的現(xiàn)象稱為早產(chǎn)，孕37周至不滿42足周娩出的現(xiàn)象稱為足月產(chǎn)。
妊娠全程共280天即40周。

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