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Embryology Test 3 > Lecture 22 > Flashcards

Lecture 22 Flashcards

1
Q

in liver formation, the septum traversum excretes what gene

A

BMP

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2
Q

in liver formation, the cardiac mesoderm secretes what gene

A

FGF

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3
Q

transition from simple cuboidal to pseudostratified columnar requires what

A

Hhex

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4
Q

formation of the hepatic cords requires loss of e-cadherins and requires what genes?

A

Hhex, Prox-1, Tbx-3 and HNF-6

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5
Q

differentiation of hepatic cord cells into hepatoblasts requires what genes

A

Hhex, Tbx-3, Gata, HGF, BMP, Wnt and FGF

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6
Q

hepatoblasts express what

A

albuminin

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7
Q

the pancreas arises from 2 primordia, what are they

A

dorsal and ventral pancreas

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8
Q

the ventral pancreas depends on the activity of what gene?

A

Ptf-1a

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9
Q

initial site of respiratory system is developed from the floor of the pharynx and relies on what TF?

A

Nkx2.1

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10
Q

what nerve will innervate the laryngeal musculature?

A

CN X

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11
Q

the superior laryngeal nerve is associated with what arcH?

A

4th

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12
Q

the recurrent laryngeal nerve is associated with what arch?

A

6th

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13
Q

this maintains the stability of epithelial sheets and ducts

A

syndecan

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14
Q

this is an extracellular matrix protein and interacts with syndecan

A

tenascin

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15
Q

this is a mesenchymal factor that helps epithelial cells maintain polarity

A

epimorphen

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16
Q

what are the 5 stages in lung development?

A

embryonic, pseudoglandular, canalicular, terminal sac, postnatal

17
Q

during this stage of lung development there is a BMP-4 and Wnt singalong gradient and there is an intense growth of blood vessels

A

canalicular stage (17-26 weeks)

18
Q

short canals on either side of the foregut that connect the pericardial and peritoneal portions of the coelom

A

pleural canals

19
Q

this separates the heart from the developing liver and gives rise to large ventral portion of diaphragm

A

septum transversum

Embryology Test 3 (9 decks)

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