SD4 Flashcards

1
Q

Evènements important SD4 ?

A

_ Délimitation

_ Neurulation

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2
Q

Quel sera la forme de l’embryon ?

A

cylindrique

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3
Q

Quand a lieu les mvts de plicatures ?

A

J 22 cephalique

J23 caudale

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4
Q

Quels sont les deux mvts qui ont lieu ?

A

Transversal et Longitudinal

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5
Q

Mvts longitudinal ?

A

2 rotation de 90 en deux temps

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6
Q

Le septum transversum se trouve alors en position plus crâniale que l’aire cardiaque ?

A

Faux c’est l’inverse

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7
Q

cette rotation aboutis a quoi au niveau caudale ?

A

au cordon ombilicale

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8
Q

Mvts transversale

A

étranglement vésicule vitelline

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9
Q

cette rotation aboutis a quoi ?

A

vésicule ombilicale et futur intestin primitif

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10
Q

le mesoblaste paraxial est à l’origine de quelle structure ?

A

les somites

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11
Q

quand a t on les premières somites ?

A

J20

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12
Q

cmb de somites SD5

A

42 a 44 paires

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13
Q

Combien de somites SD4

A

28 paires

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14
Q

les somites sont à l’origines de 3 populations

A

Sclérotome, Myotome et Dermatome

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15
Q

quel Cell est a l’origine des C hématopoïétiques et endothélial ?

A

Ilots de wolfs et Pander

NB: ces Cell ont été mises en places en SD3

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16
Q

Etapes neurulation primaire et Jours

A

SD3 et J19

Plaque neurale, Gouttière Neurale et Tube Neural

17
Q

aboutissement Neurulation Secondaire

A

formation Eminence caudale