ANATOMIA Y FISIOLOGIA NASAL
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Transcript of ANATOMIA Y FISIOLOGIA NASAL
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Obstrucción, Congestión, Hiposmia y Rinorrea
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EMBRIOLOGÍA
A las 3.5 semanas de vida aparece la placoda nasal (Ectodermo).
A las 5 semana se invagina hacia la
cavidad oral, separándola la membrana buco nasal,
rompiéndose a la 8ª semana (Falla=atresia coana)
El proceso maxilar se fusiona con el
proceso nasal para formar las narinas. El proceso fronto nasal (Mesodermo) es
el precursor del septum.
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Hueso: Nasal, proceso frontal (Ascendente) de maxilar, proceso nasal del frontal
Cartílago: Cuadrangular (Septum), laterales (Superior e Inferior)
Músculos: Nasalis, depresor septi, procerus, dilator naris, angular, depresor alae.
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RIEGO ARTERIAL
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Techo: Lamina cribosa etmoidal, hueso frontal adelante y esfenoides atrás
Septum: Cartílago, vomer, etmoides perpendicular, cresta maxilar y premaxila
Cornetes: Superior, medio y inferior Meatos: Superior, medio e inferior
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RIEGO ARTERIAL
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PLEXO KIESSEL BACH EN ÁREA DE LITTLE
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Grupo Anterior: FRONTAL,ETMOIDAL ANTERIOR Y MAXILAR: DRENAN EN MEATO MEDIO
Grupo Posterior: ETMOIDAL POSTERIOR Y ESFENOIDAL:DRENAN EN MEATO SUPERIOR
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