Neural Communication Flashcards

(17 cards)

1
Q

Temporal Summation

A

The additive affect of high frequency inputs of a presynaptic neuron on the postsynaptic neuron 

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2
Q

Spatial summation

A

The additive effect of simultaneous stimulation from multiple presynaptic neurons on a Postsynaptic neuron

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3
Q

Neural integration

A

EPSPs and IPSPs are integrated and its additive effect determines if information is passed on 

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4
Q

Feedforward excitation

A

Presynaptic neuron will excite postsynaptic neuron that propagate excitation on the neuron within a circuit

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5
Q

Feedforward inhibition

A

Shut down excitation in a circuit of a downstream neuron 

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6
Q

Feedback recurrent excitation

A

Presynaptic excites postsynaptic neuron, and it will feedback excitation to the presynaptic neuron

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7
Q

Feedback recurrent inhibition

A

Presynaptic neuron, excites, postsynaptic neuron that will excite inhibitory Interneurons to presynaptic, which will shut down excitation or dampen in communication train

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8
Q

Convergence

A

Several presynaptic neuron sending information to one postsynaptic neuron that will send information to other downstream neurons 

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9
Q

Divergence

A

Integrated information of presynaptic, neuron dispersed to multiple postsynaptic neurons 

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10
Q

Lateral inhibition

A

Neuron will inhibit neighboring neurons 

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11
Q

Ionotropic Receptors

A

Ligand, gated ion channels, fast transmission

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12
Q

Matabotropic Ion Channels

A

G protein, coupled old, slower transmission for complex biological processes

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13
Q

Agonist

A

Drug that binds to same site that endogenous ligands bind, activates receptors

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14
Q

Antagonist

A

Drugs that binds to Maine receptor site, but does not activate receptor – competes with endogenous ligand – inhibit activation of receptor

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15
Q

Allocentric modulation

A

Binding of modulator to different site than endogenous ligand – creates confirmational, change in receptor, that changes binding affinity of ligand resulting in modulation of receptor, activation, by endogenous ligand
Positive – enhances activity of Nerotransmitter
Negative - decreases activity of Neurotransmitter 

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16
Q

Nero transmitter synthesis

A

Allows more of transmitter to be available

17
Q

Uptake

A

If this is stopped, it will prevent removal of Nerotransmitter from synaptic cleft
Can also be enhanced