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Grad Neuro I > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Electircal synapses

A

faster,
bidirectional
connexin Cx36 in PFC Neurons
Cx43 in astrocytes

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2
Q

connexin

A

hexamer
can be closed
usually closed
some secondary messengers

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3
Q

nervous system cells with electrical synapses

A

in PFC

layers connected for lateral inhibition

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4
Q

knockouts of Cx36

A

reduces fine motor skills

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5
Q

Chem Type I

A

Asymmetrical
EPSP
form on dendrites

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6
Q

Chem Type II

A

Symetrical
IPSP
on Soma

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7
Q

chemical

A

slower
vessicals
diff between pre and post

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8
Q

Temporal summation

A

happen really fast to reach threshold

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9
Q

Spatial summation

A

happen nearby to reach threshold

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10
Q

IPSP vs EPSP

A

EPSP depolarization letting Na

IPSP hyperpolaration letting Cl in and Na out

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11
Q

EPSP Nts

A

glutamate, serotonin, ACh

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12
Q

IPSP

A

GABA and glycine

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13
Q

G protein coupled receptors GPCRs

A

slow synapse

monamine NTs

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14
Q

glutamate receptors

A

NMDA, AMPA

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15
Q

inclusive fitnes

A

Catholicism

move breed survive

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16
Q

Non spiking vs spiking

A

spiking - APs binary, rate coded, temporal coded, digital
non spiking - analog/ continuous short rang slower - crab claw
nervous system is hybrid of both
amplitude of analog correlated with spike rate

17
Q

rate coded vs temporal coded

A

cell takes thinks how many spikes per bin

vs gaps also matter

18
Q

neurons as integration centers

A

integration of inputs with graded/weighted potentials by distnace from axon hillock

19
Q

types of networks

A

convergent
divergent
recursive
hidden layers

20
Q

edge detection

A

side ones less inhibited bla bla

21
Q

hopfield network

A

plasticity weights

22
Q

mauthner cells

A

contrallater control
fish and tad poles
reciperocal inhibition
visual sense mostly sometimes auditory

23
Q

DCMD

A

looming alert
like mauthner cell
biases movement but mauthner forces movement

24
Q

raster

A

trials over time

gets binned into histograms

25
Q

interval spike interval

A

measure of time between spikes

26
Q

autocorrelation histograms

A

detects rhythms

27
Q

spike triggered average

A

average of trials shows where activity happens after even a single spike

28
Q

NMJ steps

A 
AP at synapse
Ca influx
vessicles with ACh leave
ACh x2 bind to receptors letting in some Na
depolarization opens more Na channels
through T tubules into sarcpolasmic reticulum release callcium
binds to troponin to remove tropomyosin 
contraction

Grad Neuro I (9 decks)

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