Faringe

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Embriologia

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20 Terms

1

Embriologia

proveniente del intestino primitivo anterior

4ta semana

endodermo

los arcos faringeos sostienen las paredes laterales de la farine primitiva

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2

Histologia

  1. nasofaringe: epitelio pseudoestratificado ciliado

  2. orofaringe: epitelio escamoso estratificado

  3. laringofaringe: epitelio pseudoestratificado ciliado

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3

longitud

12-16cm

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4

porciones

nasofarínge

bucofarínge

laringofarínge

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5

irrigación

faríngea ascendente

palatina inferior o ascendente

palatina superior o descendente

pterigoidea superior

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6

inervacion

plexo faringeo

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7

musculos constrictores

  • constrictor superior

  • constrictor medio

  • constrictor inferior

<ul><li><p>constrictor superior</p></li><li><p>constrictor medio</p></li><li><p>constrictor inferior</p></li></ul>
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8

musculos elevadores

  • palatofaríngeo

  • estilofaríngeo

<ul><li><p>palatofaríngeo</p></li><li><p>estilofaríngeo</p></li></ul>
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9

embrio de arcos faríngeos

4ta semana

proceden de cresta neural

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10

de que estructuras se encargan los arcos faríngeos?

cara,cavidades nasales, boca, farínge, laringe y cuello

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11

1er arco faríngeo

prominencia maxilar

prominencia mandibular

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12

2ndo arco faríngeo

arco hiodes

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13

3er arco faringeo

nervio glosofaringeo y musculo estilofaringeo

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14

4to arco faringeo

nervio vago

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15

6xto arco faringeo

musculos intrinsecos de la laringe

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16

Bolsas faríngeas

desarrolladas entre los arcos, tienen 4 pares, el 5to es rudimentario

endodermo de la faringe primitiva

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17

1era bolsa faringea

membrana timpánica, cavidad timpanica, antro mastoideo y tubo faringotimpanico

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18

2nda bolsa faríngea

amigdala palatina

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19

3era bolsa faríngea

parte bulbar dorsal de la bolsa y se diferencia en glándula paratiroides inferior

parte hueca ventral y alargada se diferencia en timo

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20

4ta bolsa faringea

glandula paratiroides superior

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