Lecture 22 Flashcards
in liver formation, the septum traversum excretes what gene
BMP
in liver formation, the cardiac mesoderm secretes what gene
FGF
transition from simple cuboidal to pseudostratified columnar requires what
Hhex
formation of the hepatic cords requires loss of e-cadherins and requires what genes?
Hhex, Prox-1, Tbx-3 and HNF-6
differentiation of hepatic cord cells into hepatoblasts requires what genes
Hhex, Tbx-3, Gata, HGF, BMP, Wnt and FGF
hepatoblasts express what
albuminin
the pancreas arises from 2 primordia, what are they
dorsal and ventral pancreas
the ventral pancreas depends on the activity of what gene?
Ptf-1a
initial site of respiratory system is developed from the floor of the pharynx and relies on what TF?
Nkx2.1
what nerve will innervate the laryngeal musculature?
CN X
the superior laryngeal nerve is associated with what arcH?
4th
the recurrent laryngeal nerve is associated with what arch?
6th
this maintains the stability of epithelial sheets and ducts
syndecan
this is an extracellular matrix protein and interacts with syndecan
tenascin
this is a mesenchymal factor that helps epithelial cells maintain polarity
epimorphen
what are the 5 stages in lung development?
embryonic, pseudoglandular, canalicular, terminal sac, postnatal
during this stage of lung development there is a BMP-4 and Wnt singalong gradient and there is an intense growth of blood vessels
canalicular stage (17-26 weeks)
short canals on either side of the foregut that connect the pericardial and peritoneal portions of the coelom
pleural canals
this separates the heart from the developing liver and gives rise to large ventral portion of diaphragm
septum transversum
