Mesoderm Parachordal

Mesoderm parachordal or m. parachordal (Greek para-about+ chord) is a mesodermal organ that develops from the intermediate mesoderm and is located between the notochord and the coelomium. The parachordal mesoderm is a layer of tissue containing various cells and tissues such as neuroepithelial cells, fibroblasts and fat cells.

The parachordal mesoderm plays an important role in the development of coelomia, as it provides support for the coelomia and helps it develop correctly. In addition, the parachordal mesoderm is involved in the formation of coelomic organs, such as the coelomia and coelomic glands.

In general, the parachordal mesoderm is an important organ in the development of coelomia as well as coelomic organs.

***Parachordial mesoderm*** is a type of mesoderm presented in the form of the surface layer of the tergectoderm of the amphibian embryo.

Parachordia type mesodermals have a simple, loose fibrillary sclerotome. These characteristics are represented by all primitive types of differentiated environments, but in this case they are absent in higher vertebrates. The neural mesodermal and telonephric mesoderm are parallel. They lack nerve fibers and nephridia, respectively. Therefore, the parachordia are not true primitive mesoderm. They are degenerated remnants of the mesoderm of the acranial nervous system. Instead of mesodermal tissues, parachordia types develop some types of neuroglia. But at the same time, only the roots of the neural tube and the neural periphery are preserved. These types of mesodermal are still subdivided into neural mesodermal. Some nerve mesodermals contain part of the body of the nerve sac, such as the greater nerve (the part that contains the cells in the trunk). Parachordial nerve sacs, which are formed from neural mesodermal and adjacent parts of the body wall (mantle), may or may not have residual mesoderm (telonephrium) that they previously contained in their development. The mesodermal of the nerve sac is probably part of the endodermal wall. Morphological features of the neural mesodermal suggest that it is derived from a special kind of mesodermality found in the coelomic sac. The latter sac, in turn, may be part of the general mesodermal tergectodermal membrane. In the nervous environment, this can be traced by considering the structure of a special neural plate, to which, as the animal’s body appears, the mesodermal extends downwards. This plate may also be a remnant of coelomic mesodermal, which is a special region of the coelom wall at the cell type stage that lacks a closed layer of cells. Other parts of the tergectodermal membrane