hypoblast

简明释义

英[ˈhaɪpəblæst]美[ˈhaɪpəˌblæst]

n. 下胚层，内胚层

英英释义

单词用法

同义词

反义词

例句

1.Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.

并将组织者区域的细胞移植到宿主胚胎中，验证其诱导次级胚胎的能力。

2.Four types of the of grafts from the organizer area were transplanted into host embryos to see if the epiblast or hypoblast of the organizer area had an ability to induce a secondary embryo.

并将组织者区域的细胞移植到宿主胚胎中，验证其诱导次级胚胎的能力。

3.In mammals, the hypoblast plays a critical role in signaling pathways during gastrulation.

在哺乳动物中，下胚层在胃肠胚层形成期间的信号通路中起着关键作用。

4.The interaction between the hypoblast and epiblast is crucial for proper embryonic axis formation.

下胚层与上胚层之间的相互作用对于胚胎轴的正确形成至关重要。

5.The development of the embryo begins with the formation of the hypoblast, which is essential for proper organ formation.

胚胎的发展始于下胚层的形成，这是器官形成所必需的。

6.The hypoblast contributes to the formation of the yolk sac in vertebrates.

下胚层有助于脊椎动物卵黄囊的形成。

7.Researchers are studying the role of the hypoblast in early embryonic development.

研究人员正在研究下胚层在早期胚胎发育中的作用。

作文

The study of embryology reveals fascinating insights into the early stages of development in various organisms. One of the key layers formed during the process of gastrulation is the hypoblast, which plays a crucial role in the formation of the embryo. The hypoblast (下胚层) is a layer of cells that contributes to the formation of the yolk sac in mammals and is essential for the proper development of the embryo. Understanding the function of the hypoblast can help us appreciate the complexities of developmental biology.During the early stages of embryonic development, the fertilized egg undergoes a series of divisions, leading to the formation of a blastocyst. This structure consists of an inner cell mass and an outer layer called the trophoblast. The inner cell mass eventually differentiates into two distinct layers: the epiblast and the hypoblast. The hypoblast is located beneath the epiblast and is primarily involved in the formation of the extraembryonic tissues.The hypoblast serves as a critical support system for the developing embryo. It helps establish the primitive endoderm, which is vital for nutrient exchange and the overall sustenance of the embryo during its early growth. The cells of the hypoblast also contribute to the formation of the embryonic membranes, which protect and nourish the embryo as it develops.In addition to its structural role, the hypoblast is involved in signaling pathways that guide the differentiation of the epiblast cells. These signals are essential for establishing the body plan and ensuring that the various tissues and organs develop correctly. Disruptions in the function of the hypoblast can lead to developmental abnormalities, highlighting its importance in embryogenesis.Research on the hypoblast has implications beyond basic biology; it can inform medical science, particularly in understanding congenital disorders and potential regenerative medicine applications. For example, studying how the hypoblast interacts with other cell types can provide insights into how stem cells differentiate and how we might manipulate these processes for therapeutic purposes.Moreover, the hypoblast is not unique to humans; it is present in many vertebrates, indicating that this layer of cells is a conserved feature throughout evolution. By comparing the hypoblast across different species, scientists can gain a deeper understanding of evolutionary biology and the mechanisms that govern development.In conclusion, the hypoblast (下胚层) is a fundamental component of early embryonic development, playing critical roles in both structural support and signaling. Its study not only enhances our understanding of developmental processes but also opens avenues for medical advancements. As research continues to unravel the complexities of the hypoblast, we can look forward to new discoveries that may one day lead to innovative treatments for various developmental disorders.