- two ways that
divide the
whole animal kingdom into two-halves (see:
Embryological origins of the
mouth and ****). If in the blastula, the
first pore,...
- The
theory of recapitulation, also
called the
biogenetic law or
embryological parallelism—often
expressed using Ernst Haeckel's
phrase "ontogeny recapitulates...
-
Prenatal development (from
Latin natalis 'relating to birth')
involves the
development of the
embryo and of the
fetus during a
viviparous animal's gestation...
- Gartner's
canal or the
ductus longitudinalis e****hori, is a
potential embryological remnant in
human female development of the
mesonephric duct in the development...
- The left and
right brachiocephalic veins (previously
called innominate veins) are
major veins in the
upper chest,
formed by the
union of the ipsilateral...
- 'mouth') were so
named because it was once
believed that in all
cases the
embryological dent
formed the
mouth while the **** was
formed later, at the opening...
-
relatives have been
debated since 1890.
Studies based on anatomical,
embryological, and
paleontological data have
produced different "family trees". Some...
- 1936). It is
alternatively known as a
lusorian artery. In the
normal embryological development of the
aortic arches, the
right dorsal aorta regresses caudal...
- to the species,
establishing that
linear evolution could not occur.
Embryological development, in von Baer's mind, is a
process of differentiation, "a...
-
created the
Deuterostomia to encomp**** the
Ambulacraria and Chordonii.
Embryological origins of the
mouth and **** The
earliest Bilateria may have had only...
