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Embriologie > Gastrulatie > Flashcards

Gastrulatie Flashcards

1
Q

cand are loc gastrulatia

A

s3

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2
Q

procese fundamentale ale gastrulatiei

A

formarea mezodermului
formarea notocord
formarea discului embr trilaminar

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3
Q

asemanare intre blastocist si embrion

A

celule diploide

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4
Q

linia primitiva este

A

sursa discului trilaminar
ingrosare mediosagitala epiblastica

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5
Q

rolul liniei primitive

A

stabileste polaritatea craniocaudala si axa sim bilaterale

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6
Q

ce formeaza ectodermul

A

lama dorsala, podeaua si peretele cav amniotice

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7
Q

ce constituie mezodermul

A

mezenchimul, continuandu se cu mezodermul extraembrionar

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8
Q

ce alc endodermul

A

tavanul sacului vitelin

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9
Q

endoblastul extraembrionar

A

mb exocelomica Heuser

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10
Q

arii distincte

A

aria cardiogenica
lama precordala
mb cloacala
mb oro faringiana

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11
Q

canal notocordal lieberkuhn

A

invaginarea fosetei primitive a notocordului in interiorul procesului notocordal

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12
Q

canal notocordal lieberkuhn

A

invaginarea fosetei primitive a notocordului in interiorul procesului notocordal

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13
Q

mezenchimul intraembrionar

A

constituit din cordoane longitudinale si celule ce isi pastreaza potentialul proliferativ

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14
Q

discul embrionar trilaminar e alc din

A

ecroderm
mezoderm
endoderm

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15
Q

endodermul

A

format din celule epiblastice migrate in profunzime
deplaseaza mezodermul de pe suprafata ventrala a discului

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16
Q

procesul notocordal

A

prelungire craniala sub forma de cordon plin interpus intre epiblast si endoblast

17
Q

canalul notocordal Lieberkuhn

A

invaginare a fosetei primitive in interiorul procesului notocordal

18
Q

canal neurocentric

A

face leg dintre sac vitelin si cavitatea amniotica

19
Q

formarea mezodermului intraembrionar

A

ziua 15
lina primtiva
nodul primitv Hansen
santul primitiv

20
Q

formarea notocordului

A

ziua 15

21
Q

ce induce notocordul?

A

neurulatia
inductor embrionar primal

Embriologie (18 decks)

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