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Development of the mucociliary system in the eustachian tube and middle ear: murine model
Yonsei Medical Journal ; : 64-71, 1992.
Artículo en Inglés | WPRIM | ID: wpr-153229
ABSTRACT
In order to describe the developmental anatomy of the murine eustachian tube and its related structures, seventy six mice of ages ranging from gestational day 11 to postnatal day 21 were investigated through the light and electron microscopic observations. Development of the ciliated cells was seen concurrently in both the eustachian tube and middle ear on the 16 th gestation day, one day earlier than the epithelial secretory cells appeared in both the eustachian tube and middle ear. The number of ciliated cells and secretory cells increased rapidly after birth. Tubal glands were well identified with evidence of secretory activity around the time of birth. Thus, the findings of this study indicate that the mucociliary defense system starts to develop during the fetal stage and is well established immediately after birth.
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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Cilios / Epitelio / Trompa Auditiva / Animales / Animales Recién Nacidos / Ratones Endogámicos BALB C / Membrana Mucosa Tipo de estudio: Estudio pronóstico Límite: Animales / Embarazo Idioma: Inglés Revista: Yonsei Medical Journal Año: 1992 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Cilios / Epitelio / Trompa Auditiva / Animales / Animales Recién Nacidos / Ratones Endogámicos BALB C / Membrana Mucosa Tipo de estudio: Estudio pronóstico Límite: Animales / Embarazo Idioma: Inglés Revista: Yonsei Medical Journal Año: 1992 Tipo del documento: Artículo