FINAL - toxins

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9 Terms

1
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tetrodotoxin

blocks VG Na+ channels @ axon hillock = no AP

2
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latrotoxin

explosive release of ACH

3
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omega conotoxin GVIA

blocks VG Ca2+ channels (no Ca2+ in axon terminal)

blocks in presynaptic neuron

4
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botulinum toxin

blocks release of ACH - no muscle contraction

5
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omega agatoxin GVIA

blocks VG Ca2+ channels in the presynaptic neuron

6
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organophosphate

prevents degradation of ACH - left in cleft

7
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prostigmine

inhibits ACH, left in cleft

8
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curare

blocks nicotinic ACH receptor

9
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alpha bungarotoxin

blocks nicotinic ACH receptor