Anatomía > Esófago > Flashcards

Esófago Flashcards

(21 cards)

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1
Q

Origen

A
  • Borde inf. de M. Constrictor de la faringe

- C6

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2
Q

Terminación

A
  • Orificio del cardias

- T10 a T11

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3
Q

Se separa de los cuerpos vertebrales

A

T4 - T5

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4
Q

Se desvía a la izquierda

A

T7

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5
Q

Longitud

A

25 a 30 cm

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6
Q

Porciones

A
  • Cervical: 5 a 6 cm
  • Torácica: 16 a 20 cm
  • Diafragmática: 1-3 cm
  • Abdominal: 3cm
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7
Q

Estrechamientos

A
  • Cricoideo
  • Torácico [bronco- aórtico]
  • Frénico [diafragmático]: T10
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8
Q

Capas

A
  1. Adventicia (no tiene serosa, es más susceptible a perforarse)
  2. Músculo liso (1/3 sup. De M. Estriado y 2/3 inf. De M. Liso)
    a. Capa longitudinal externa
    b. Capa circular interna
  3. Submucosa
  4. Mucosa
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9
Q

Porción cervical

A

C6 a T2

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10
Q

Porción torácica

A

T2 a T9

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11
Q

Porción cervical: irrigación

A

A. Esofágicas superiores (A. Tiroidea inferiores)

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12
Q

Porción torácica: irrigación

A
  • A. Esofágicas medias (Aorta torácica, A. bronquiales, A. intercostales)
  • Rama esofagotraqueal (A. Tiroidea inferior)
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13
Q

Porción abdominal: irrigación

A

A. Esofágicas inferiores (A. Frénicas inferiores y A. Gástrica posterior)

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14
Q

Porción cervical: drenaje venoso

A

Venas tiroideas inferiores

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15
Q

Porción torácica: drenaje venoso

A
  • Venas pericárdicas
  • Venas bronquiales
  • Venas frénicas superiores
  • Vena ácigos
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16
Q

Porción abdominal: drenaje venoso

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A
  • Vena gástrica izquierda

- Vena porta hepática (anastomosis portocava)

17
Q

Porción cervical: drenaje linfático

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A
  • Nodos linfáticos yugulares superficiales

- Nodos linfáticos paratraqueales

18
Q

Porción torácica: drenaje linfático

Study These Flashcards
A
  • Nodos linfáticos paratraqueales
  • Nodos linfáticos traqueobronquiales
  • Nodos linfáticos yuxtaesofágicos
19
Q

Porción abdominal: drenaje linfático

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A
  • Nodos linfáticos gástricos izquierdos

- Nodos linfáticos celíacos

20
Q

Inervación extrínseca

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A
  • Parasimpática: N. Vago

- Simpática: N. torácicos 4º a 6º

21
Q

Inervación intrínseca

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A
  • Plexo mientérico o de Auerbach

- Plexo submucoso ode Meissner

Anatomía
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