mesoderm

简明释义

英[ˈmesəʊˌdɜːm]美[ˌmezodɜːrm]

n. 中胚层；中胚叶

英英释义

单词用法

同义词

反义词

例句

1.Many signaling pathways play important roles in the formation of mesoderm and patterning of the neuroectoderm during early development of vertebrate embryos.

在脊椎动物胚胎的早期发育中，多种信号途径对中胚层形成和神经外胚层分化起着重要的调节作用。

2.Between the ectoderm and endoderm is mesoderm, which forms the muscles, reproductive organs, blood vessels and excretory organs.

在外胚层和内胚层之间是中胚层，它形成肌肉、生殖腺、血管和排泄器官。

3.The liver of Alligator sinensis was formed by the endodermal epithelia invigilated from the edge of foregut door and by surrounding mesoderm during early stages of pre-natal development.

扬子鳄肝脏由早期胚胎前肠门边缘内陷的内胚层上皮和脏壁中胚层组织共同发育形成。

4.In the center layer (mesoderm) the heart and circulatory system are forming.

在中胚层，心脏和循环系统正在形成。

5.Fibroblasts are mesenchymal cells which are derived from the embryonic mesoderm.

成纤维细胞是胚胎中胚层起源的间叶细胞。

6.A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.

脊椎动物胚胎中胚层中的体节物质，沿脊索成对出现，后生长成肌肉或脊椎。

7.The mesoderm 中胚层 is responsible for the development of muscles and bones.

中胚层负责肌肉和骨骼的发育。

8.During embryonic development, the mesoderm 中胚层 forms between the ectoderm and endoderm.

在胚胎发育过程中，中胚层形成于外胚层和内胚层之间。

9.In vertebrates, the mesoderm 中胚层 gives rise to the circulatory system.

在脊椎动物中，中胚层产生循环系统。

10.The mesoderm 中胚层 plays a crucial role in organogenesis.

中胚层在器官发生中起着至关重要的作用。

11.The heart originates from the mesoderm 中胚层 in the developing embryo.

心脏起源于发育中的胚胎的中胚层。

作文

The process of embryonic development is a fascinating journey that involves the formation of various layers of cells, each with its own unique role in the formation of an organism. One of the key layers in this developmental process is the mesoderm, which plays a crucial role in the formation of many important structures within the body. The mesoderm (中胚层) is the middle layer of the three primary germ layers formed during embryogenesis, the other two being the ectoderm and endoderm. Understanding the functions and significance of the mesoderm can provide valuable insights into developmental biology and medicine.During the early stages of development, the embryo is composed of a simple structure known as the blastula. As development progresses, the process of gastrulation occurs, leading to the formation of the three germ layers. The mesoderm arises from the inner cell mass and is situated between the ectoderm and endoderm. This layer is responsible for giving rise to a variety of tissues and organs, such as muscles, bones, cartilage, the circulatory system, and the kidneys.One of the most significant contributions of the mesoderm is in the formation of the skeletal system. Mesodermal cells differentiate into chondrocytes and osteoblasts, which are essential for the development of cartilage and bone, respectively. This process is vital for providing structural support to the body and protecting vital organs. Additionally, the mesoderm contributes to the formation of the muscular system. Myocytes, or muscle cells, originate from the mesoderm, allowing for movement and locomotion.Another critical function of the mesoderm is its role in the development of the circulatory system. The heart, blood vessels, and blood cells all derive from mesodermal tissues. As the embryo develops, the mesoderm organizes into structures that will eventually form the heart and the intricate network of blood vessels necessary for transporting nutrients and oxygen throughout the body.Furthermore, the mesoderm is involved in the formation of the reproductive system and the excretory system. The gonads, which are responsible for producing gametes, originate from the mesoderm, as do the kidneys, which play a crucial role in filtering waste from the blood and regulating fluid balance in the body.In addition to its structural contributions, the mesoderm also plays a role in signaling pathways that guide the development of surrounding tissues. For example, the mesoderm releases growth factors that influence the differentiation of ectodermal cells into skin and neural tissues. This interaction highlights the importance of the mesoderm not just as a source of cells, but as an active participant in the orchestration of embryonic development.Studying the mesoderm has implications for regenerative medicine and tissue engineering. By understanding how mesoderm cells differentiate and develop, scientists can potentially harness these processes to create tissues and organs for transplantation. This research could lead to breakthroughs in treating diseases and injuries that currently have limited treatment options.In conclusion, the mesoderm is a vital component of embryonic development, contributing to the formation of numerous structures and systems within the body. Its role extends beyond mere structural support; it is integral to the proper functioning of various organ systems and plays a significant part in the overall development of the organism. Understanding the mesoderm not only enriches our knowledge of biology but also opens new avenues for medical advancements.

胚胎发育的过程是一段迷人的旅程，涉及到各种细胞层的形成，每个层都有其独特的角色。在这个发育过程中，一个关键的层是mesoderm（中胚层），它在身体内许多重要结构的形成中发挥着至关重要的作用。mesoderm是胚胎发生期间形成的三种主要胚层中的中间层，另外两种是外胚层和内胚层。理解mesoderm的功能和重要性可以为发育生物学和医学提供有价值的见解。在发育的早期阶段，胚胎由一个简单的结构组成，称为囊胚。随着发育的进展，发生了原肠形成过程，导致三种胚层的形成。mesoderm从内细胞团中产生，位于外胚层和内胚层之间。这个层负责产生多种组织和器官，如肌肉、骨骼、软骨、循环系统和肾脏。mesoderm最重要的贡献之一是在骨骼系统的形成中。中胚层细胞分化为软骨细胞和成骨细胞，这对于软骨和骨骼的发展至关重要。这个过程对为身体提供结构支持和保护重要器官至关重要。此外，mesoderm还参与肌肉系统的形成。肌肉细胞起源于mesoderm，允许运动和移动。mesoderm的另一个关键功能是其在循环系统发育中的作用。心脏、血管和血细胞均源自中胚层组织。随着胚胎的发展，mesoderm组织成将最终形成心脏和复杂的血管网络的结构，这些网络对于在全身运输营养和氧气是必要的。此外，mesoderm还参与生殖系统和排泄系统的形成。生殖腺负责产生配子，起源于mesoderm，肾脏也如此，肾脏在过滤血液中的废物和调节体内液体平衡方面发挥着重要作用。除了其结构贡献外，mesoderm还在指导周围组织发育的信号通路中发挥作用。例如，mesoderm释放生长因子，影响外胚层细胞向皮肤和神经组织的分化。这种相互作用突显了mesoderm不仅作为细胞来源的重要性，而且作为胚胎发育协调的积极参与者。研究mesoderm对再生医学和组织工程具有重要意义。通过理解mesoderm细胞如何分化和发育，科学家们可以潜在地利用这些过程来创建用于移植的组织和器官。这项研究可能会导致治疗目前有限治疗选择的疾病和损伤的突破。总之，mesoderm是胚胎发育的重要组成部分，对身体内众多结构和系统的形成做出了贡献。它的作用不仅限于单纯的结构支持；它对于各种器官系统的正常功能至关重要，并在整体生物体的发育中发挥着重要作用。理解mesoderm不仅丰富了我们对生物学的知识，也为医学进步开辟了新的途径。