DMEDICINA. SEMANA13. DIGESTIVO
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1. Geniogloso: Se inserta en la apófisis geni de
la mandíbula y se dirige en forma de abanico a
la lengua.
2. Estilogloso: Se inserta en la apófisis
estiloides del hueso temporal.
3. Hiogloso: Se inserta en el hueso hioides.
4. Palatogloso: También se llama músculo
glosoestafilino.
5. Faringogloso. Dirige la lengua hacia abajo y
atrás.
6. Amigdalogloso. Elevador de la base de la
lengua.
7. Músculo lingual superior: Es un músculo
impar y medio.
8. Músculo lingual inferior del apex al frenillo
lingual.
9. Músculo transverso de la lengua
LENGUA - Músculos
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MÚSCULOS DE LA LENGUA
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ESMALTE: lo da el color la dentina adyacente. Constituye la barrera frente a sustancias ácidas,
constituido por hidroxiapatita cálcica. Células: Ameloblastos
DENTINA: Compuestos por sales de calcio. Con células: Odontoblastos
CEMENTO: similar al tejido óseo. Con células Cementocitos. Son nutridos por lo tanto pueden elaborar
cemento.
LIGAMENTO PERIONDONTAL: Sujeta el diente en el alveolo oseo del hueso, permite un mjovimiento
limitado. Actua como amortiguador-
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Esófago: Ondas peristálticas
• Ondas de contracción de la musculatura lisa.
• Empujan el bolo hacia el estómago.
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EL E
STÓ
MA
GO
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Estómago: glándulas gástricas
Contiene cuatro tipos de células:
Células principales: Producen pepsinógeno. En contacto con el ácido clorhídrico se
transforma en pepsina, enzima que degrada las proteínas. En el antro pilórico segregan lipasa gástrica, que actúa sobre algunos lípidos.
Células parietales: Producen ácido clorhídrico.
Células mucosas: Segregan mucosa protectora de la pared del estómago.
Células G: Producen gastrina (hormona que estimula la secreción de ácido clorhídrico)
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Las paredes del estomago están formadas por varias
capas:
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INTESTINO DELGADO: Histología
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INTESTINO DELGADO: Histología
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Lóbulo caudado
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HÍGADO: Anatomía Microscópica
1. Espacio porta. Es la vía de entrada de la sangre arterial y venosa
2. Lobulillo hepático. Representa a las células principales del hígado
3. Vena centrolobulillar. Es la vía de salida del hígado
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