Tesutul nervos 2 Flashcards

1
Q

Ce caracteristica diferita are nodul Ranvier?

A

Este fara mielina

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2
Q

Ce au butonii terminali?

A

Vezicule cu mediatori chimici.

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3
Q

2 exemple de mediatori chimici:

A

adrenalina, dopamina

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4
Q

Ce se afla deasupra axolemei?

A

teaca de mielina

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5
Q

Ce este SINAPSA?

A

Conexiunea dintre 2 neuroni sau conexiunea dintre un neuron si o fibra musculara.

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6
Q

Cum se numeste conexiunea dintre 2 neuroni?

A

conexiune interneuronala

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7
Q

Cum se numeste conexiunea dintre un neuron si o fibra musculara?

A

conexiune neuro-musculara

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8
Q

Ce determina impulsul nervos?

A

Determina spargerea veziculelor si deplasarea mediatorilor chimici in fanta sinaptica.

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9
Q

Ce este butonul terminal?

A

O componenta pre-sinaptica.

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10
Q

Ce componente post sinaptice pot fi?

A

membrana neuronala sau musculara

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11
Q

De ce sunt perceputi mediatorii chimici?

A

de receptori

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