Agents Pharmacologiques Flashcards

1
Q

Inhibe canaux cholinergiques?

A

Curare

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2
Q

Agoniste des canaux colinergiques?

A

Muscariniques: muscarine
Nicotiniques: nicotine

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3
Q

Inhibe la pompe Na/K?

A

Ouabaine
DNP
Température sous 10 celsius
Absence de K extracellulaire

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4
Q

Empêche la synthèse d’ATP?

A

Cyanure

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5
Q

Hyperpolarise les neuronnes?

A

Morphine

Augmente gk sortant

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6
Q

Dépolarise les neuronnes?

A

Batrachotoxine

Réduit gk

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7
Q

Bloque la phosphorylation de la sous unité α des protéine g?

A

Toxine pertussique

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8
Q

Empêche l’inactivation des canaux cholinergiques muscariniques?

A

Toxine cholérique: pas de déphosphorilation de la prot g

GTPγs : analogue non hydrolysable de GTP

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9
Q

Excitation parasympatique des cell. Contractiles cardiaques.

Quel récepteur?
Quels courants affecté?

A

Cholinergique muscarinique

Augmente k sortant
Réduit Ca entrant

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10
Q

Excitation parasympatique des cell. Nodales cardiaques.

Quel récepteur?
Quels courants affecté?

A

Cholinergique muscarinique

Augmente k sortant
Réduit Na entrant (réduit if)

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11
Q

Excitation sympatique des cell. nodales cardiaques.

Quel récepteur?
Quels courants affecté?

A

Beta adrénergique

Augmente If (Na»k)

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12
Q

Excitation sympatique des cell. Contractiles cardiaques.

Quel récepteur?
Quels courants affecté?

A

Beta adrénergique

Augmente Ca entrant

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13
Q

Antagoniste des récepteurs cholinergiques muscariniques?

A

Atropine

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