Ectoderm

Ectoderm forms tissues associated with outer layers: skin, hair, sweat glands, epithelium. The brain and nervous system also develop from the ectoderm. Mesoderm ... Full article ...

ectoderm outer layer of embryonic germ layers Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...

Ectoderm [Gr. ektos - outside, without; Gr. derma - skin, leather]. The outermost germ layer of the embryo that develops during gastrulation. It will form the nervous system, epidermis, and their accessory structures.

ectoderm The outer layer of cells in embryonic development; gives rise to the skin, brain, and nervous system. Also, the outermost tissue layer in þatworms.

ectodermal cells like neurons and skin (epithelial cells) mesodermal cells like striated muscle, smooth muscle, cartilage, and bone endodermal cells like the intestinal epithelium. Their process ...

ectoderm [Gk. ecto, outside + derma, skin] The outermost of the three primary germ layers in animal embryos; gives rise to the outer covering and, in some phyla, the nervous system, inner ear, and lens of the eye. ectotherm ...

ectoderm -- The outer basic layer of tissue in those animals with true tissues. In vertebrates, for instance, the embryonic ectoderm differentiates into the skin and also the nervous system.

ectoderm Outer layer of cells of an early embryo (gastrula stage); one of the germ layers, also sometimes used to include tissues derived from ectoderm. ectognathous Derived character of most insects; mandibles and maxillae not in pouches.

ectoderm - (1) the outer cellular membrane of a diploblastic animal. (2) a: the outermost of the three primary germ layers of a triploblastic embryo. b: a tissue (as neural tissue) derived from this germ layer.

ectoderm The outermost of the three primary germ layers in animal embryos; gives rise to the outer covering and, in some phyla, to the nervous system, inner ear, and lens of the eye.

The ectoderm develops into the brain, skin, nails, the epithelium of the nose, mouth and anal canal; the lens of the eye, the retina and the nervous system.

In the ventral ectoderm of late embryos, veinlet is expressed in stripes at the posterior of the en domain, a region due to make denticles (Bier, 1990; O'Keefe, 1997; Szüts, 1997) ...

As is true for all vertebrates, 3 cell layers are formed these layers are called the ectoderm, mesoderm and endoderm. These form by cell divisions, migrations, and rearrangements and are the forerunners of specialized tissues and organs.

And those cells then can give rise, as I said, to all the different cells of the body and there are three major lineages that are important-the ectoderm, the mesoderm, and the endoderm-and these three divisions make up all the cells of the body, ...

Concepts in developmental biology allantois, amnion, blastocyst, blastomere, blastula, blastulation , chorion, chrysalis, cleavage, ectoderm, embryo, embryogenesis, embryogeny , embryology, endoderm, extra-embryonic membrane , fetus (or foetus), ...

Diploblast: A lower invertebrate such as jelly fish that are composed of two tissue layers (ectoderm and endoderm) and lacking the third layer (mesoderm) present in higher invertebrates and vertebrates.

As YACs containing the relevant regions of X became available, Schlessinger and colleagues located genes for several diseases. These included an overgrowth disorder called Simpson-Golabi-Behmel syndrome and ectodermal dysplasia, ...

See also: Embryo, Organ, Cells, Trans, Tissue