Tipos de Sinapsis Flashcards

1
Q

Sinapsis excitadoras

A

Glutamato y Aspartato

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2
Q

Sinapsis moduladoras

A

Noradrenalina

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3
Q

Sinapsis inhibidoras

A

GABA y Glicina

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4
Q

¿Que hace el Glutamato?

A

Abre canales no selectivos para Na y K

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5
Q

Receptores del Glutamato

A

AMPA: Excitacion rapida permeable a K, Na y poco al Ca+
NMDA: Excitacion lenta, permeable a K, Na y mas al Ca+
Kainato: Regula la liberacion de transmisores

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6
Q

Receptores de GABA

se unen entre las subunidades alfa y beta

A

GABAa: ionotropico, canales para Cl- (relajantes/sedantes)
GABAb: metabotropico
GABAc: ionotropico, canales de Cl- (en neuronas de la retina)

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7
Q

Neurotransmisor no peptidico

A

Producido en el axon
Son dependientes de Ca+
Siempre unidas a la sinapsina
Vesiculas claras

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8
Q

Neuropeptido

A

Producido en el Soma
Transporte axonal (microtubulos)
Granulos de centro denso
Son prehormonas cortadas

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9
Q

Funcion del Ca+ en las sinapsis

A

Desencadena la fusion de vesículas para la exocitosis del neurotransmisor

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10
Q

Sinaptotagmina

A

Funciona como sensor de Ca+

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11
Q

Sinaptobrevina

A

Unida a la membrana de la vesícula del neurotransmisor

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12
Q

Sintaxina

A

Unida a la membrana presinaptica

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13
Q

neurotransmisor inhibidor

A

Abre canales anionicos
Abre canales de Cl- y abre de K+
Celula se vuelve mas negativa

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14
Q

Neurotransmisor excitador

A

Cierra canales catiónicos
Celula se vuelve mas positiva
Disminuyen canales de Cl-

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