Regulación de la ventilación Flashcards

1
Q

3 componentes principales

A
  • sensores
  • sistema de regulacion central
  • músculos respiratrios
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2
Q

4 tipos de sensores

A
  • quimioreceptores perifericos
  • quimioreceptores centrales
  • quimioreceptores pulmonares
  • otros receptores
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3
Q

Principal señal captada por los cuerpos carotideos

A

presion parcial de O2

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4
Q

Hipercania es

A

retencion de CO2

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5
Q

La ventilacion es de

A

5-6L/min

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6
Q

Principales quimioreceptores periféricos que responden a la disminución de O2

A

cuerpos carotideos

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7
Q

3 zonas quimioreceptores centrales

A

m/rostral = salida VII & X
L/caudal =salida XII
S/intermedia

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8
Q

estimulacion zona M

A

incrementa ventilación

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9
Q

Si hay acidosis la ventilación

A

incrementa

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10
Q

si aumenta el CO2 aumenta el

A

Iones H

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11
Q

Acidosis respiratoria

A
  • PH 7.35
    -+ Ventilación
    + PaCO2
    Agudo = HCO3 normal
    Crónico = HCO3 aumenta
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12
Q

Alcalosis respiratoria

A

+ PH 7.45
- PaCO2
Agudo = HCO3 normal
Crónico = HCO3 disminuye

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13
Q

Receptores de la traquea y bronquios

A

receptores pulmonares

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14
Q

Refleflejo Hering-Breuer de insuflación

A

cese de la inspiracion, prolongacioin del tiempo espiratorio y descenso en la frecuencia respiratoria.

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15
Q

Centros pontinos

A
  • Bulbares

- de la protuberancia

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16
Q

Centros bulbares

A
grupo dorsal (V IX X)
hryp ventral (IX,X,XII)
17
Q

Centro apneusico estimulado por

A

PaCO2

18
Q

Inhibidor del centro apneusico

A

centro neumotaxico