- In embryology, a
neurogenic placode is an area of
thickening of the
epithelium in the
embryonic head
ectoderm layer that
gives rise to
neurons and other...
- In embryology, the
nasal placode (or
olfactory placode)
gives rise to the
olfactory epithelium of the nose. Two
nasal placodes arise as
thickened ectoderm...
- specification. The
olfactory placode forms as two
thickenings of non-neural
region of
embryonic ectoderm. In mice, the
olfactory placode derives from an anterior...
- In embryology, the otic
placode is a
thickening of the
ectoderm on the
outer surface of a
developing embryo from
which the ear develops. The ear, including...
- of the
inner ear.
During the
earlier stages of embryogenesis, the otic
placode in****tes to
produce the otic cup. Thereafter, the otic cup
closes off...
- The lens
placode is a
thickened portion of
ectoderm that
serves as the
precursor to the lens. In****tion is the
process of
folding in cells. The lens...
-
placode (embryonic
nasal tissue). More recently, it was
discovered that a
subset of GnRH
neurons can
trace their origins not from the
nasal placode,...
- the lens
placode. The lens
placode is the
first stage of
transformation of a
patch of skin into the lens. At this
early stage, the lens
placode is a single...
- proximity, the
cranial sensory placodes (the olfactory, lens, otic, trigeminal,
epibranchial and
paratympanic placodes). The dual
origin cranial nerves...
-
auditory placode, a
thickening of the
ectoderm which gives rise to the
bipolar neurons of the
cochlear and
vestibular ganglions. As the
auditory placode in****tes...
