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单词 placenta
释义

placenta /plə'sentə//plə'sɛntə/

英汉-汉英词典
n. 胎盘,胎座
形容词: placental
词组 | 习惯用语
human placenta 人体胎盘素;紫河车
placenta previa 前置胎盘;胎盘前置
placenta accreta 胎盘增生
英语例句库
  1. Hemorrhage into the decidua basalis, formed retroplacental hematoma, lead to the separation of the placenta.
    一)主要病理变化:底蜕膜出血,形成血肿,使胎盘自附着处剥离。
  2. However, these must be distinguished from simple "hydropic degeneration" seen in placentas of fetuses undergoing intrauterine demise.
    须与单纯水样变性相区别。图示子宫内胎盘正在死亡。
  3. Indusium The flap of tissue, derived from the placenta, that encloses the developing sporangia in the sorus of a fern.
    是一种起源于胎座(应为叶表皮译者注)的瓣片状组织,覆盖在蕨类植物孢子囊群中正在发育的孢子囊上。
  4. The incidence of hysterectomy was 0.079%, thereinto, cesarean hysterectomy accounted for 80% and its main indications were placenta factors and uterine acratia.
    产科子宫切除术发生率为0.079%,其中,剖宫产子宫切除占80%,子宫切除术主要指征为胎盘因素和子宫收缩乏力。
  5. Igura K, Zhang X, Takahashi K, et al. Isolation and characterization of mesenchymal progenitor cells from chorionic villi of human placenta. Cytotherapy 2004;6:543-53.
    紫河车绒毛膜绒毛的间充质干细胞分离与鉴定细胞疗法2004;6:543-53.
  6. Active placentin from lamb placenta was extracted by modern technology of biological engineering, the preparation technology is simple and needed no specific purification process.
    摘要以健康羊胎盘为原料,采用现代生物工程技术制备活化羊胎素,制备工艺简单,无需特殊提纯手段。
  7. This disease is an unusualsevere type of hemolytic disease of newborn (erythroblastosis fetalis)characterized by pathognomonic edema of whole body and the placenta.All the cases were dead fetuses.
    胎儿水肿属新生儿溶血病的一种,最显著的病变为全身水肿及胎盘水肿。
  8. Results The distribution of VEGF in placenta of normal group is similar to that of PIH group.They all are found in villous trophoblast,villous blood vessels and villous strome.
    结果VEGF在正常妊娠胎盘和妊高征胎盘中分布基本一致,分布在滋养细胞、血管及绒毛间质。

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原声例句
VOA慢速英语_科技

The researchers also created an artificial placenta.

研究人员还制造了一种人造胎盘

野性北极

After giving birth, the mother deer eats the placenta.

在分娩后鹿妈妈会吃掉胎盘

环球慢速英语

The baby receives these substances through a temporary organ called the placenta.

婴儿通过一个叫做胎盘的临时器官接受这些物质。

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It can also reach the placenta. So, even in the womb, a fetus is not safe from air pollution.

PM2.5还可以到达胎盘。因此,就连在子宫里的胎儿都不能避开空气污染。

环球慢速英语

The placenta surrounds the forming baby.

胎盘包围正在成形的婴儿。

日常生活医学科普

The virus can survive in the eyes, testes, placenta, and amniotic fluid.

病毒可以在眼睛、睾丸、胎盘和羊水中存活。

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And personally, the most terrifying, in the placenta of our unborn children.

我个人认为,最可怕的是,在未出生孩子的胎盘里也有微塑料。

环球慢速英语

The umbilical cord connects the forming baby to the placenta and his mother.

脐带将发育中的婴儿与胎盘和他的母亲连接起来。

环球慢速英语

They carry the blood full of nutrients from the placenta to the baby.

它们将充满营养的血液从胎盘输送给婴儿。

VOA慢速英语_健康

In about 1 in 100 pregnancies, the placenta separates too early from the womb.

大约每100个孕妇中就有1个胎盘过早脱离子宫。

中文百科

胎盘

胎盘(学名:placenta),又称「胞衣」,是一种只有在雌性哺乳类动物怀孕时或是每一只哺乳类动物还是胎儿时才有的暂时器官,位于子宫内侧的表面。

胎盘由两部分组成。一部分和胚胎在生物学与基因上都相连,另一部分是母体的一部分。

胎盘内层是羊膜囊,羊膜囊包含羊水。胎盘植入于子宫壁,并且从母体的血液获取营养与氧气,排出废物。这个接口也是一个障壁,拦下某些可能会伤害胚胎的物质。但是很多物质是胎盘无法拦截的,像是酒精以及一些抽烟产生的物质。几种病毒也可以穿过胎盘,如德国麻疹。

胎盘还有新陈代谢跟内分泌活动。胎盘会分泌黄体激素,对维持怀孕很重要。也会分泌乳促素,增加母体的血糖与血脂,使得胎儿的营养摄取增加。

英语百科

Placenta 胎盘

Placenta
The initial stages of human embryogenesis.

The placenta (also known as afterbirth) is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, provide thermo-regulation to the fetus, waste elimination, and gas exchange via the mother's blood supply, fight against internal infection and produce hormones to support pregnancy. The placenta provides oxygen and nutrients to growing babies and removes waste products from the baby's blood. The placenta attaches to the wall of the uterus, and the baby's umbilical cord develops from the placenta. The umbilical cord is what connects the mother and the baby. Placentas are a defining characteristic of placental mammals, but are also found in some non-mammals with varying levels of development. The homology of such structures in various viviparous organisms is debatable and, in invertebrates such as Arthropoda, is analogous at best.

近义、反义、联想词
近义词
n.
reproductive structure, vascular structure

联想词
fetus胎儿,胎;uterus子宫;fetal胎的,胎儿的;embryo胚胎;womb子宫;uterine子宫的;pregnancy怀孕;cervix子宫颈;umbilical脐带的;ovary子房;epidural硬脑膜外的;
英英词典
placenta n.
  1. that part of the ovary of a flowering plant where the ovules form
  2. the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
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更新时间:2025/6/22 1:51:04