1.4 Synaptic Physiology Flashcards Preview

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Flashcards in 1.4 Synaptic Physiology Deck (15):
1

Point of communication between 2 neurons or a neuron and an effector organ

Synapse

2

Short process emanating from the soma

Dendrites

3

Long process emanating from the soma

Axon

4

Terminal portion of an axon where mitochondria and RER are typically found

Presynaptic neuron

5

Neurotoxin that targets synaptobrevin to block the fusion of synaptic vesicles

TetanusBotulium B,D,F,G

6

Neurotoxin that targets SNAP-25 to block the fusion of synaptic vesicles

Botulinum A/E

7

Neurotoxin that targets Syntaxin to block the fusion of synaptic vesicles

Botulinum C1

8

Temporary depolarization of postsynaptic membrane cause by the flow of positively charged ions into the postsynatic cell

Excitatory Postsynaptioc Potential (EPSP)

9

Temporary hyperpolarization of postsynaptic membrane caused by the flow of negatively charged ions into the postsynaptic cell

Inhibitory Postsynaptic Potential (IPSP)

10

Postsynaptic potentials of 2 or more neurons combined at the same time (type of summation)

Spatial summation

11

When a cell receives input that are close in time, they are also added together (type of summation)

Temporal summation

12

Pharmacologic agents and toxins that affect NMJ:Blocks the binding of Ach with receptors

CurareAlpha bugarotoxin

13

Pharmacologic agents and toxins that affect NMJ:Inhibits the release of Ach

Botulinum toxin

14

Pharmacologic agents and toxins that affect NMJ:Clumps the Ach vesicles causing the massive release of Ach

Black widow spider toxin

15

Pharmacologic agents and toxins that affect NMJ:Irreversible inactivation of Ach

Organophosphates