mesodermic

The vessels of the villus are surrounded by a thin layer of mesoderm consisting of gelatinous connective tissue, which is covered by two strata of ectodermal cells derived from the trophoblast: the deeper stratum, next the mesodermic tissue, represents the cytotrophoblast or layer of Langhans; the superficial, in contact with the maternal blood, the syncytiotrophoblast (Figs. 36 and 37).

I. Embryology. 11. Development of the Fetal Membranes and Placenta 1918

Every feather is in fact an open wound, and is perhaps the only other case, in addition to that of the antlers of stags, in which vascular mesodermic tissue is normally shed in such considerable quantities.

Hormones and Heredity J. T. Cunningham 1897

This papilla consists of vascular dermal, _i. e._ mesodermic tissue, and if the feather is pulled out during growth bleeding occurs.

Hormones and Heredity J. T. Cunningham 1897

But, besides these mesodermic cells of the "vascular layer" proper, other travelling cells, of which the origin and purport are still obscure, take part in the formation of blood in the meroblastic

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

As these earliest mesodermic structures extended, and became spacious sexual pouches in the later descendants of the

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

On the other hand, all the membranous, cartilaginous, and osseous coverings of the labyrinth are formed from the mesodermic head-plates.

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

Groups of sensitive nerve cells separate from the ordinary epidermic cells; they retire into the more protected tissue of the mesodermic under-skin, and form special neural ganglia there.

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

The various parts of the corium arise by division of labour from the originally homogeneous cells of the cutis-plate, the outermost lamina of the mesodermic skin-fibre layer

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

The sexual glands develop originally from the two promesoblasts or primitive mesodermic cells

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

The vegetal entoderm that lined their simple gut-cavity served for nutrition; the ciliated ectoderm that formed the external skin attended to locomotion and sensation; finally, the two primitive mesodermic cells, that lay to the right and left at the ventral border of the primitive mouth, were sexual cells, and effected reproduction.

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876