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Embrio > Sem 2 > Flashcards

Sem 2 Flashcards

1
Q

¿Qué ocurre en la segunda semana de desarrollo?

A

-Formación del disco bilaminar
-Formación de dos cavidades
-Diferenciación del trofoblasto
-Diferenciación del polo cefálico
-Finaliza la implantación

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2
Q

División del embrioblasto en dos capas de células:

A

Epiblasto – polo de implantación
Hipoblasto – cavidad del blastocisto

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3
Q

Las lagunas trofoblásticas se forman en el

A

Sincitiotrofoblasto

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4
Q

Al final de la segunda semana inician:

A

Lámina precordal y tallo de conexión

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5
Q

Lámina precordal

A

Futura región cardiogénica

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6
Q

Tallo de conexión

A

Precursor del cordón umbilical

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7
Q

El blastocito forma

A

Trofoblasto
Embrioblasto

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8
Q

Embrioblasto forma

A

Epiblasto
Hipoblasto

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9
Q

Trofoblasto forma

A

Citotrofoblasto
Sincitiotrofoblasto

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10
Q

El disco embrionario forma

A

Epiblasto e hipoblasto

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11
Q

En la segunda semana se empiezan a notar las superficies

A

Dorsal
Ventral

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12
Q

Cavidad dorsal

A

Amniótica

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13
Q

Cavidad ventral

A

Saco vitelino

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14
Q

Extremos

A

Cefálico
Caudal

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15
Q

¿Qué detectan los test de embarazo?

A

Gonadotrofina Coriónica Humana o GCH

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16
Q

Lacunae

A

Grandes espacios vacíos provenientes de la fusión de vacuolas, estos rodean al citotrofoblasto y lo van a nutrir en un futuro.

17
Q

¿Cómo se establece la circulación útero-placenta?

A

Las lacunae se fusionan con los sinusoides llenándose de sangre.

Embrio (14 decks)

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