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embrio arcos > bolsas faringeas > Flashcards

bolsas faringeas Flashcards

1
Q

ubicacion y revestimiento

A

internas entre cada arco revestidas endodermo

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2
Q

1era bolsa faringea (receso del tubo timpánico)

A

proximal: Trompa estaquio
Distal : Cavidad timpanica

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3
Q

2da bolsa faríngea

A

amigladas palatinas (O. endodermo)
(sistema inmunológico)
( es una acumulación T.linfoide al fondo de la cavidad bucal)

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4
Q

3era bolsa faringea

A

DORSAL- Glandula paritoidea inferior
VENTRAL- Timo

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5
Q

TIMO

A

organo linfoide primario
maduracion linfocitos T

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6
Q

4ta bolsa faringea

A

DORSAL- glandula paratiroidea superior
VENTRAL- cuerpo ultimo braquial
(O. CN)

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7
Q

G . paritoroidea superior /ubicacion

A

produce PTH para ⬆️ CALCIO
detras se la G. tiroides

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8
Q

cuerpo ultimo braquial

A

SE FUSIONA CON G. TIROIDES
- CELULAS PARAFOLICULARES “c”

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9
Q

Funcion C PARAFOLICULARES “c”

A

Producen CALCITONINA (⬇️calcio)

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10
Q

migracion del TIMO

A

•Migra CAUDAL
•G. paratiroideas INFERIORES se unen al dorso TEMPORALMENTE y migran caudal
• Pasa G.tiroides y se unen al dorso d ella

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embrio arcos (5 decks)

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