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.
Full article >>>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: one of three germ layers that develops into the skin and
nervous system.
egg: the
haploid cell within the female
ovary.
elements: the fundamental building blocks of matter within all living things.
Full article >>>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 ...
Full article >>>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.
Full article >>>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.
Full article >>>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.
Full article >>>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.
Full article >>>ectodermThe 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.
Lab 11
Animal Diversity I
Lab 14
Gametogenesis and Development ...
Full article >>>In the
ventral ectoderm, Hh signals in both directions leading to the
expression of the patched (ptc)
gene in all neighboring
cells (Nakano et al., 1989; Hooper and Scott, 1989; Ingham,, 1991).
Full article >>>Developmental
neuroscience, which studies how the
ectodermally-derived central
nervous system and
mesodermally-derived
peripheral nervous system develops into adulthood.
Full article >>>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, ...
Full article >>>The
neural plate is thick and flat bundle of
ectoderm which develops in the
embryo into the
nervous system.
Full article >>>having two primary germ layers (
ectoderm and
endoderm)
Source: Noland, George B. 1983. General
Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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Full article >>>The insect respired by means of air-filled internal tubes, the
tracheae. This
ectoderm-derived
organ forms a highly branched tubular network which provides the
organs with
oxygen.
ReproductionDrosophila melanogaster
egg ...
Full article >>>: 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.
Diploid number ...
Full article >>>As YACs containing the relevant regions of X became available, Schlessinger and colleagues located genes for several diseases. These included an overgrowth dis
order called Simpson-Golabi-Behmel syndrome and
ectodermal dysplasia, ...
Full article >>>'"/>