Gr. mesos: middle + derma: skin] • The middle of the three embryonic tissue layers first delineated during gastrulation. Gives rise to skeleton, circulatory system, muscles, excretory system, and most of the reproductive system.
the middle layer of the 3 germ cell layers of the embryo. Mesoderm outside the embryo and covering the amnion, yolk and chorion sacs is extraembryonic mesoderm. (More? Musculoskeletal Notes | Week 3 Notes)
The mesoderm, also known as the mesodermal germ layer is an area of tissue which will layer form into other muscular structures. Later in the pregnancy, the mesoderm will form to become the internal organs, including kidneys and ureters, and other muscular tissues.
The middle of the three germ layers (Ectoderm, mesoderm and endoderm). It is formed during gastrulation, and gives rise to connective tissues, muscle, urogenital and vascular systems, and the peritoneum. Synapomorphy of the Bilateria.
the middle of the three germ layers, or masses of cells (lying between the ectoderm and endoderm), which appears early in the development of an animal embryo. In vertebrates it subsequently gives rise to muscle, connective tissue, cartilage, bone, notochord, blood, bone marrow, lymphoid tissue, and to the epithelia (surface, or lining, tissues) of blood vessels, lymphatic
The middle of the three primitive germ layers of the embryo. These cells occur between the ectoderm and endoderm and give rise to most of the cardiovascular system, blood cells and bone marrow, the skeleton, smooth and striated muscles, and parts of the reproductive and excretory system.
The middle layer of cells in embryonic development; gives rise to muscles, bones, and structures associated with reproduction. The middle embryonic tissue layer. Cells and structures arising from the mesoderm include the bone, blood, muscle, skin, and reproductive organs.
In early stages, the mesoderm is known as the mesoblast. The mesoderm is the middle of the three primary germ layers of the embryo, lying between the ectoderm and the endoderm. It gives rise to the connective tissue, bone, cartilage, muscle, blood and blood vessels among others.
Gr. mesos - middle; Gr. derma - skin] The middle germ layer, formed in the embryo during gastrulation. In early organogenesis, three regions of mesoderm are evident: the epimere (= dorsal mesoderm) will form somites; the mesomere (= intermediate mesoderm, = nephrotome) will form the excretory system; and the hypomere (= lateral plate mesoderm) delaminates into the inner splanchnic and the outer somatic mesoderm.
In animals with three tissue layers (i.e. all except sponges and cnidarians), the middle layer of tissue, between the ectoderm and the endoderm. In vertebrates, for instance, the mesoderm forms the skeleton, muscles, heart, spleen, and many other internal organs.
The germ layer mesoderm forms in the embryos of animals more complex than cnidarians, making them triploblastic. Mesoderm forms during gastrulation when some of the cells migrating inward to form the endoderm form an additional layer between the endoderm and the ectoderm.