Celda Rectal( Recto Y Ano) Flashcards

1
Q

Recto

A

Porción final del tubo digestivo
Almacena bolo fecal y deshidratarlo
Válvulas de Houston

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2
Q

Mucosa del recto

A

Epitelio cuboides simple
Sin tenias

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3
Q

Plexos de la submucosa del recto

A

Interno y externo

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4
Q

Irrigación del Recto

A

Ramas de la arteria sigmoidea ( rama de la mesenterica inferior)

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5
Q

Drenaje venoso del recto

A

Mesénterica inferior- sistema porta - hígado

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6
Q

Drenaje venoso del recto y ano

A

V. Rectal superiores: desemboca en la vena mesénterica inferior( porta)
V. Rectal media: desembocan en la vena Iliana interna (cava)
V. Rectal inferior: desembocan en la vena pudenda interna (cava)

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7
Q

Ano

A

Transición entre el recto (almacenamiento) y el exterior ( orificio anal).
Se abre a través del perineal posterior delante del coxis

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8
Q

Mucosa del ano

A

Superior (zona colorrectal) epitelio cuboide simple
Medio ( zona transicional) epitelio dermopapilar liso no queratinizado (mucosa de Hermann)- pecten
Inferior ( zona escamosa) epitelio estratificado queratinizado ( escamoso)

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9
Q

Configuración interna del ano

A

Pecten: arriba- línea pectinea ( festoneada) y debajo: borde inferior de las válvulas semilunares que se prolongan hacia arriba formando dos columnas de Morgani

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10
Q

Fijación del ano

A

Elevador del ano+ esfínteres (interno: liso y externo( estriado). = continencia

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11
Q

Irrigación del ano

A

Arterias hemorroidales inferiores

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12
Q

Drenaje venoso del ano

A

3 plexos venosos ( superior medio e inferior)

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13
Q

Inervación del ano

A

Nervio anal ( plexo pudendo)

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14
Q

Varice

A

Venas que se inflaman

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