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Fisiología celular > Aminas > Flashcards

Aminas Flashcards

1
Q

que son las aminas

A

aa modificados

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2
Q

NT que derivan de tirosina

A
  • Dopamina
  • noradrenalina
  • adrenalina
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3
Q

NT que deriva de triptófano

A

serotonina

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4
Q

NT que deriva de histidina

A

histamina

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5
Q

pasos para la síntesis de adrenalina

A
  1. Tirosina
  2. DOPA
  3. Dopamina
  4. Noradrenalina
  5. Adrenalina
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6
Q

pasos para la síntesis de serotonina

A
  1. Triptófano
  2. 5-hidroxitriptófano
  3. serotonina
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7
Q

Serotonina o ___

A

5-HT

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8
Q

funciones de la serotonina

A
  • Movimientos del intestino.
  • Regula nauseas
  • Regula estado de ánimo.
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9
Q

donde se sintetiza la serotonina

A
  • núcleo Rafe del SNC
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10
Q

tipos de receptores de la serotonina

A
  • metabotrópico
  • ionotrópico
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11
Q

receptor ionotrópico de la serotonina

A

Receptor ionotrópico de Na+

  • despolariza a la membrana (esta relacionado con el vomito)
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12
Q

receptor metabotrópico de la serotonina

A

Gs

  • incrementa AMPc
  • inhibe a canales de K
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13
Q

funcion del autoreceptor 5HT

A
  • inhibe la liberación del neurotransmisor a través del mismo
  • es igual a los receptores postsinápticos.
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14
Q

donde se sintetiza la histamina

A
  • hipotálamo
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15
Q

tipo de receptor de la histamina

A

metabotrópicos

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16
Q

cual es el receptor metrabotópico de la histamina

A

H1-4

17
Q

function de la histamina en el sistema inmune

A
  • promueve la inflamación
  • lo hace en exceso en enfermedades como el asma
18
Q

funciones principales del receptor H1 de la histamina

A
  • Secreción gastrica
  • hipotensión
  • bronco constricción
  • permeabilidad vascular
  • purito
  • dolor
19
Q

ubicaciones principales del receptor H1

A
  • Músculo liso de vía aérea y gastrointestinal
  • aparato cardiovascular
  • médula suprarrenal
  • células endoteliales
  • linfocitos
  • SNC
20
Q

menciona un antagonista de H1 de la histamina

A

loratadine

Fisiología celular (27 decks)

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