... insights into the ancestral mechanisms involved in neural crest patterning. Lamprey Pharynx Cartilage Cranial ganglia Head skeleton Craniofacial development Vertebrate evolution A key event in early vertebrate evolution was the transition from a sessile, filter-feeding lifestyle to one...

...Alexei Nechiporuk; Tor Linbo; Kenneth D. Poss; David W. Raible In all vertebrates, the neurogenic placodes are transient ectodermal thickenings that give rise to sensory neurons of the cranial ganglia. Epibranchial (EB) placodes generate neurons of the distal facial,glossopharyngeal and vagal...

... implicated in several disorders affecting craniofacial development in humans. We show that Msx1 / 2 mutants exhibit profound deficiencies in the development of structures derived from the cranial and cardiac neural crest. These include hypoplastic and mispatterned cranial ganglia, dysmorphogenesis...

... ear Olfactory epithelium Cranial ganglia The sensory nervous system of the vertebrate head has dual origin, arising from neural crest and placode cells. All cranial sensory ganglia receive contributions from both cell populations, whereas crucial components of the special sense organs...

...-mail: draible@u.washington.edu ) 22 4 2005 ©2005. 2005 Fgf3 Foxi1 Epibranchial placodes Cranial ganglia Endoderm Pharyngeal pouches Placode induction Neurogenesis Neurogenic cranial placodes are transient ectodermal thickenings that form at the border of the neural plate...

... 12 12 2003 © 2004. 2004 Neural crest Apoptosis Zebrafish tfap2a mont blanc Craniofacial development Pigment Cranial ganglia Muscle development The modern head is a major evolutionary accomplishment that allowed vertebrates to develop a predatory lifestyle( Gans...

... Cranial ganglia Chick In vertebrate embryos, the formation of the sense organs (nose, eyes, ears and lateral line) and the cranial sensory ganglia is substantially dependent on the contribution of cells from cranial ectodermal placodes (reviewed by Webb and Noden, 1993 ; Le Douarin et al., 1986...

... are unaffected by 10 7 M RA, as are the cranial midbrain and forebrain: 10 −7 M RA also affects the development of cranial ganglia, principally the Vth, anterior lateral line and VUIth ganglia, suggesting that RA affects normal development of the cranial neural crest. Effects of RA at stages immediately prior...

... branchial arches mouse embryology head development cranial ganglia neural plate hindbrain The number and size of the repeating units in neural tube and branchial arches is probably established before Hox 2 expression reaches these regions. The neural crest does not appear to be intrinsically...

... in situ hybridization chicken embryo neural crest placode cranial ganglia β -nerve growth factor (NGF) is a target-derived protein that is essential for development and maintenance of sympathetic and a subset of sensory peripheral neurons (see Levi-Montalcini and Angeletti, 1968 ; Thoenen...