| 单词 | mesoderm |
| 例句 | After gastrulation, the embryo can be thought of as an onion with three layers: the ectoderm, the mesoderm and the endoderm. Career choice in stem cells: Predetermined or self-selected? 2023-09-19T04:00:00Z Sandwiched between these two layers is a living mesoderm. Fundamentals of Biology 2015-01-01T00:00:00Z Triploblasts develop a third layer—the mesoderm—between the endoderm and ectoderm. Concepts of Biology 2013-04-25T00:00:00Z These disks eventually formed the three main cell layers of the body: the endoderm, mesoderm and ectoderm. Lab-Grown Monkey Embryos Reveal in 3-D How Organs Begin 2023-05-15T04:00:00Z The three germs layers, shown in Figure 34.23, are the endoderm, the ectoderm, and the mesoderm. Biology for AP Courses 2022-06-09T00:00:00Z Embryonic animal cells differentiate into three germ layers—endoderm, mesoderm, and ectoderm—each developing into different organs and systems. Miller & Levine Biology 2018-01-01T00:00:00Z The mesoderm gives rise to the central nervous system. Fundamentals of Biology 2015-01-01T00:00:00Z A true coelom arises entirely within the mesoderm germ layer. Concepts of Biology 2013-04-25T00:00:00Z Within the first 8 weeks of gestation, a developing embryo establishes the rudimentary structures of all of its organs and tissues from the ectoderm, mesoderm, and endoderm. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm gives rise to the muscle cells and connective tissue in the body. Biology for AP Courses 2022-06-09T00:00:00Z For instance, the gut tube and liver derive from the endoderm; muscle and connective tissue from the mesoderm; and neural tissue and skin from the ectoderm. A decade of questions about the fluidity of cell identity 2020-02-23T05:00:00Z The mesoderm is the third germ layer; it forms between the endoderm and ectoderm in triploblasts. Fundamentals of Biology 2015-01-01T00:00:00Z A third group of triploblasts has a body cavity that is derived partly from mesoderm and partly from endoderm tissue. Concepts of Biology 2013-04-25T00:00:00Z When the heart first forms in the embryo, it exists as two parallel tubes derived from mesoderm and lined with endothelium, which then fuse together. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm that lies on either side of the vertebrate neural tube will develop into the various connective tissues of the animal body. Biology for AP Courses 2022-06-09T00:00:00Z In gastrulation, the epiblast differentiates into the three germ layers of cells — the ectoderm, mesoderm and endoderm — that will form the fetus. Human embryo implantation modelled in microfluidic channels 2019-09-10T04:00:00Z A third group of triploblasts has a slightly different coelom derived partly from mesoderm and partly from endoderm, which is found between the two layers. Fundamentals of Biology 2015-01-01T00:00:00Z The animal phyla of this and subsequent modules are triploblastic and have an embryonic mesoderm sandwiched between the ectoderm and endoderm. Concepts of Biology 2013-04-25T00:00:00Z The epithelium that lines vessels in the lymphatic and cardiovascular system derives from the mesoderm and is called an endothelium. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm also forms a structure called the notochord, which is rod-shaped and forms the central axis of the animal body. Biology for AP Courses 2022-06-09T00:00:00Z Like mesoderm internalization2, this occurs through a process that is directly regulated by gene expression. Genetics and mechanics combine to guide the embryonic gut 2019-08-13T04:00:00Z The coelom is divided into two symmetrical parts that are separated by two spokes of mesoderm. Fundamentals of Biology 2015-01-01T00:00:00Z The three germ layers are the endoderm, the ectoderm, and the mesoderm. Concepts of Biology 2013-04-25T00:00:00Z All cells and tissues in the body derive from three germ layers in the embryo: the ectoderm, mesoderm, and endoderm. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm gives rise to somites and the notochord. Biology for AP Courses 2022-06-09T00:00:00Z How does mesoderm internalization compare with other examples of cell internalization during development, particularly when many events of morphogenesis occur simultaneously? Genetics and mechanics combine to guide the embryonic gut 2019-08-13T04:00:00Z In protostomes, two circular layers of mesoderm form inside the gastrula, containing the coelom cavity. Fundamentals of Biology 2015-01-01T00:00:00Z Eucoelomates have a body cavity within the mesoderm, called a coelom, which is lined with mesoderm tissue. Concepts of Biology 2013-04-25T00:00:00Z Most muscle tissue of the body arises from embryonic mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z The endoderm, mesoderm, and ectoderm are germ layers. Biology for AP Courses 2022-06-09T00:00:00Z But the syrinx is made of just mesoderm cells—there are no neural crest cells involved. The bird voice box is one of a kind in the animal kingdom 2018-10-05T04:00:00Z As the protostome develops, the mesoderm grows and fuses with the gastrula cell layer. Fundamentals of Biology 2015-01-01T00:00:00Z We used a similar approach to computationally identify factors that are differentially expressed in mesoderm and endoderm. Transcription factor binding dynamics during human ES cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z Note that epithelial tissue originates in all three layers, whereas nervous tissue derives primarily from the ectoderm and muscle tissue from mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z The notochord cells of the mesoderm signal the ectodermal cells to form epidermal cells as well as the neural plate. Biology for AP Courses 2022-06-09T00:00:00Z These data indicate that muscles21 and, possibly, mesoderm evolved independently in Ctenophora to control the hydroskeleton, body shape and food capture. The ctenophore genome and the evolutionary origins of neural systems : Nature : Nature Publishing Group 2014-05-20T04:00:00Z These pouches eventually fuse to form the mesoderm, which then gives rise to the coelom. Fundamentals of Biology 2015-01-01T00:00:00Z We maintained the cells for three days in feeder-free culture and then induced directed differentiation towards mesendoderm, endoderm, mesoderm, and ectoderm using different media conditions. Transcription factor binding dynamics during human ES cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z By the fourth week, mesoderm tissue located on either side of the notochord thickens and separates into a repeating series of block-like tissue structures, each of which is called a somite. Anatomy and Physiology 2013-06-19T00:00:00Z Explain what the mesoderm is and what it eventually differentiates into. Biology for AP Courses 2022-06-09T00:00:00Z The results suggest a specific evolutionary process that likely occurred—including repeated gains and loss of mesoderm, expansion of genes associated with the cell cycle, growth signaling, apoptosis, and epithelial and neural cell types. [Research Article] The Genome of the Ctenophore Mnemiopsis leidyi and Its Implications for Cell Type Evolution 2013-12-12T19:26:12.817Z Annelids show the presence of a true coelom, derived from embryonic mesoderm and protostomy. Fundamentals of Biology 2015-01-01T00:00:00Z From 24 to 120 h of mesoderm differentiation, Activin A was removed from the culture. Transcription factor binding dynamics during human ES cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z Skeletal muscles, excluding those of the head and limbs, develop from mesodermal somites, whereas skeletal muscle in the head and limbs develop from general mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm, located on either side of the vertebrate neural tube, develops into various connective tissues. Biology for AP Courses 2022-06-09T00:00:00Z It has usually been regarded as representing both endoderm and mesoderm, and the groove which usually leads to its formation has been compared to the abnormally elongated blastopore of a typical gastrula. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z A true coelom arises entirely within the mesoderm germ layer and is lined by an epithelial membrane. Fundamentals of Biology 2015-01-01T00:00:00Z During embryonic development, all the body's organs and tissues develop from one of the three germ layers: endoderm, mesoderm and ectoderm. Stem Cells: Flexible friends 2012-02-29T18:21:27.080Z The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm, located on either side of the vertebrate neural tube, develops into various connective tissues. Biology for AP Courses 2022-06-09T00:00:00Z Mesoderm, Coelom and Blood-System.—From the mesoderm most of the organs of the body—muscular, circulatory, reproductive—take their origin. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z Outside this digestive cavity are three tissue layers: an inner endoderm, a central mesoderm, and an outer ectoderm. Fundamentals of Biology 2015-01-01T00:00:00Z B. From the mesoderm arise the following structures:— The connective tissues of the body. Embryology The Beginnings of Life 2011-09-12T02:00:28.483Z The endocrine glands that produce the steroid hormones, such as the gonads and adrenal cortex, arise from the mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z The mesoderm, located at the border of the neural plate and the non-neural ectoderm, develops into various connective tissues such as the facial cartilage, ribs, and lungs. Biology for AP Courses 2022-06-09T00:00:00Z These cells develop from that portion of the mesoderm known as the mesothelium, and are therefore frequently termed mesothelial, though by many they are also included as endothelial cells. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" 2011-02-19T03:00:59.807Z In deuterostomes, two groups of gastrula cells in the blastopore grow inward to form the mesoderm. Fundamentals of Biology 2015-01-01T00:00:00Z The shading is due to an increased growth of cells, because here the three germinal layers—embryonic ectoderm, mesoderm, and entoderm—are in contact. Embryology The Beginnings of Life 2011-09-12T02:00:28.483Z The heart forms from an embryonic tissue called mesoderm around 18 to 19 days after fertilization. Anatomy and Physiology 2013-06-19T00:00:00Z The origin and part played by the mesoderm appeared the most obscure. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z Identify the endoderm and ectoderm cells, the spicules or fibers, and, among the spicules or fibers, irregular amœboid cells, sometimes called mesoderm cells. A Guide for the Study of Animals 2011-01-18T03:00:14.913Z As the deuterostome develops, the mesoderm pinches off and fuses, forming a second body cavity. Fundamentals of Biology 2015-01-01T00:00:00Z These layers we saw were termed the germinal layers, and were named respectively the “ectoderm,” the “entoderm,” and the “mesoderm”—the last appearing between the two former. Embryology The Beginnings of Life 2011-09-12T02:00:28.483Z The two structures of the adrenal glands arise from two different germ layers: the adrenal cortex from the mesoderm and the adrenal medulla from ectoderm neural cells. Anatomy and Physiology 2013-06-19T00:00:00Z In Echinodermata a certain amount of mesenchyme appears before the epithelial mesoderm, which is formed later as gut-diverticula. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z The mesoderm also originates at the anal side of the ectoderm and extends in two bands right and left between ectoderm and endoderm. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The coelom of most protostomes is formed through a process called schizocoely, meaning that during development, a solid mass of the mesoderm splits apart and forms the hollow opening of the coelom. Fundamentals of Biology 2015-01-01T00:00:00Z The other side was jagged and broken, for it had been torn from the mesoderm of that tortured mother world. Asteroid of Fear The endocrine system originates from all three germ layers of the embryo, including the endoderm, ectoderm, and mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z In the Vertebrata the whole of the mesoderm has at first the mesenchyme form. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z From the mesoderm on the caudal side of the pericardium is developed the septum transversum, and in this the central tendon is formed. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" Here, the mesoderm develops as pouches that are pinched off from the endoderm tissue. Fundamentals of Biology 2015-01-01T00:00:00Z Into the dorsal mesentery the pancreas grows, also as diverticula, from the duodenum, while the spleen is developed from the mesoderm contained in the same fold. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" During those first few weeks, blood vessels begin to form from the embryonic mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z As has been implied in the above account, mesenchyme is usually formed from epithelial mesoderm or from endoderm, or from tissue destined to form endoderm. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z Afterwards they painted their armor a dark grey, like chunks of mesoderm stone. The Planet Strappers These animals have a pseudo-cavity that is not completely lined by mesoderm. Fundamentals of Biology 2015-01-01T00:00:00Z At the same time it is necessary to observe that it is by no means certain that the mesoderm found in various groups of Metazoa is a similar or homologous formation in all cases. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" Blood vessels begin to form from the embryonic mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z But in some groups the mesoderm is actually laid down in cleavage, and is present at the end of that process. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z Twenty miles off was a haze against the stars—a cluster of small mesoderm fragments. The Planet Strappers This stage of differentiation consists in the formation of either a pouch or an additional layer between the ectoderm and the endoderm, which is called the mesoderm. Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions Endomesoderm: the inner layer formed by an invagination of the middle portion of the primitive band of the embryo, and from which the endoderm and mesoderm are subsequently differentiated. Explanation of Terms Used in Entomology The second layer of cells fills in as the middle layer, or mesoderm. Anatomy and Physiology 2013-06-19T00:00:00Z It has been already stated that the mesoderm is a composite tissue. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z It is an irregular structure, consisting of a very thin outer layer of mesoderm, lined with a single layer of flattened epithelial cells. Development of the Digestive Canal of the American Alligator The parts lying above this axis are those which have been developed from the ectoderm and mesoderm—viz. voluntary muscles, central nervous system, and organs of special sense. Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions Mesenchym: that portion of the mesoderm that produces the connective tissues of the body. Explanation of Terms Used in Entomology It originates about day 18 or 19 from the mesoderm and begins beating and pumping blood about day 21 or 22. Anatomy and Physiology 2013-06-19T00:00:00Z As already hinted, in Balanoglossus and Amphioxus the whole of the mesoderm of the body is at first in an epithelial condition, being developed as an outgrowth of the gut-wall. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z The mesoderm that extends ventrad from the mesentery, on each side of the entoderm just described, consists of a thick layer of compactly arranged cells. Development of the Digestive Canal of the American Alligator He it was who introduced the modern conception of the mesoderm, and cleared up the confusion in which Pander and von Baer had left the organs formed between the serous and the mucous layer. Form and Function A Contribution to the History of Animal Morphology Mesoblast: the middles germ layer of the embryos: = mesoderm. Explanation of Terms Used in Entomology Between the ectoderm and entoderm of the gastrula, in the space occupied by the supporting membrane of hydra, a new layer of cells, the mesoderm, appears. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 The difficulties in the application of the layer-theory become vastly greater when the Mesoderm. origin and fate of the mesoderm is considered. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z In their more advanced mesoderm we find a few contractile longitudinal canals which force the blood through the body by their contractions; these are the first blood-vessels. The Evolution of Man — Volume 2 According to Haeckel, the origin of the generative products in the mesoderm is a heterotopic phenomenon, for he considers that they must have originated phylogenetically in one of the two primary layers, ectoderm or endoderm. Form and Function A Contribution to the History of Animal Morphology The former is usually called briefly the parietal, and the latter the visceral layer or mesoderm. The Evolution of Man — Volume 1 But our bones and muscles and blood-vessels all come from the mesoderm by folding, plaiting, and channelling, and division of labor resulting in differentiation of structure. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 The mesoderm is, if we may judge from the number of organs which are derived from it, much the most important of the three layers. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z But between the two germinal layers a mesoderm is developed, a soft mass of connective tissue, in which the organs are embedded. The Evolution of Man — Volume 2 It will be remembered that Remak introduced in 1855 the conception of the mesoderm as an independent layer derived from the endoderm. Form and Function A Contribution to the History of Animal Morphology In all the other animals new strata of cells are formed subsequently between these two primary body-layers, and these are generally comprehended under the title of the middle layer, or mesoderm. The Evolution of Man — Volume 1 So far as these two layers are concerned, and excluding the mesoderm, it would appear that the layer-theory does apply in a very remarkable manner to the whole of the Metazoa. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z The former is called simply epithelial mesoderm, the latter mesenchyme. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z They have a simple cutaneous muscular layer, developing from the mesoderm. The Evolution of Man — Volume 2 The first included the Protozoa, the second the Cœlenterata, the third the other five phyla, distinguished by the possession of a third layer, the mesoderm, and a "blood-lymph" cavity enclosed therein. Form and Function A Contribution to the History of Animal Morphology Nevertheless, it has rendered a great and lasting service in the solution of the difficult problem of the mesoderm, and a material part of it will certainly be retained. The Evolution of Man — Volume 1 The completion of the circle in the area marks the limit of the formation of blood-vessels in the mesoderm. The Evolution of Man — Volume 1 As a general rule the ectoderm and endoderm, which may be called the primary layers, come first, and later the mesoderm is developed from one or other of them. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z It seems to be true that blood-cells may be formed from the cells of the entoderm before the development of the mesoderm. The Evolution of Man — Volume 2 These important processes of differentiation in the mesoderm, which we will consider more closely in the next chapter, proceed step by step with interesting changes in the ectoderm, while the entoderm changes little at first. The Evolution of Man — Volume 1 The parts of the mesoderm at which the first traces of them are found are usually called the middle or mesenteric plates. The Evolution of Man — Volume 1 These pairs of "cubes" of the mesoderm are the first traces of the primitive segments or somites, the so-called "protovertebrae." The Evolution of Man — Volume 1 |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。