Norepinefrina y Epinefrina Flashcards

1
Q

Norepinefrina (noradrenalina)

A

En tallo cerebral

Terminaciones pos ganglionares simpáticas

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2
Q

Se deriva de tirosina y es el único neurotransmisor sintetizado en la vesículas

A

Norepinefrina

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3
Q

Se encuentra en médula suprarrenal

A

Epinefrina

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4
Q

Tipos de receptores para epinefrina y norepinefrina

A

Metabotrópicos alfa y beta

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5
Q

Alfa 1 y 2

A

Norepinefrina

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6
Q

Beta 1, 2 y 3

A

Epinefrina

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7
Q

Alfa 1

A

Musculo liso, dilatador de pupila corazón

Vasoconstricción, midriasis, inotropismo

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8
Q

Alfa 2

A

Plaquetas, Páncreas, Terminaciones nerviosas
Inhibe liberación de neurotransmisores
inhibe secreción de insulina
Aumenta la glucosa

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9
Q

Beta 1

A

Corazón
Conotropismo
Huida

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10
Q

Beta 2

A

Músculo liso y arteria coronaria

Para relajación y vasodilatación

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11
Q

Beta 3

A

Lipocitos, activa lipolisis

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12
Q

Antagonista al receptor alfa adrenérgico

A

Fentolamina

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