Colon, recto y ano Flashcards

1
Q

Recto

A

Porción final del tubo digestivo
Almacena en bolo fecal deshidratada antes de ser expulsado

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2
Q

Mucosa recto

A

Epitelio cuboideo simple
Sin tenias

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3
Q

Irrigación

A

Arterias sigmoideas MI

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4
Q

Drenaje venoso

A

Mesenterica inferior—- sistema porta—— hígado

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5
Q

Válvulas de recto

A

Válvulas Houston

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6
Q

Unión músculo cutánea

A

Transición de epitelio rectal a anal

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7
Q

Rutas finales del drenaje venoso de recto y ano

A

Vena cava inferior
Vena porta

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8
Q

Que venas rectales llegan a la VCI

A

Venas rectales medias e inferiores
M: vena iliaca interna
I: vena pudenda interna

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9
Q

Venas que desembocan a la porta

A

Venas rectales superiores
Desembocan a la mesenterica inferior

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10
Q

Ano

A

Región de transición entren el recto y el exterior
Se abre a través del peroneo posterior

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11
Q

Mucosa anal

A

S: epitelio cuboideo simple
M: TRANSICON: epitelio dermopapilar no queratinizado

I: epitelio estratificado queratinizado

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12
Q

Configuración interna del ano

A

Pecten
A: línea pectinea
D: borde inferior de las válvulas semilunares

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13
Q

Fijación del ano

A

Músculo elevador del ano
Esfínteres
-interno: liso
- externo: estriado

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14
Q

Irrigación

A

Arterias hemorroideas inferiores

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15
Q

Drenaje venoso

A

3 plexos: superior, medio e inferior

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16
Q

Inervacion

A

Nervio anal: rama del nervio pudendo