Seizures try again Flashcards
(42 cards)
What NT do NMDA receptors respond to
Glutamate
Glycine
Mg2+ must be dislodged before what channel can open
NMDA receptor
an open NMDA channel results in influx of what
Na+
Ca2+
an open NMDA channel results in efflux of what
K+
activation of NMDA receptor leads to depolarization or hyperpolarization
depolarization
Activation of AMPA receptor leads to influx of
Na+
variable Ca2+
activation of AMPA receptor leads to efflux of
K+
post synaptic kainate receptor leads to excitation or inhibition
excitation
pre synaptic kainate receptor leads to excitation or inhibition
inhibition
is GABA-A a postsynaptic receptor or presynaptic receptor
postsynaptic receptor
binding of GABA-A leads to influx of
Cl-
GABA-A has IPSP —
-70 mV
What med binds to GABA-A receptor
BZD
what type of receptor is GABA-B
metabotropic receptor
activation of presynaptic GABA-B receptor leads to
decreased Ca2+ influx
activation of postsynaptic GABA-B receptor leads to
increased K+ efflux
GABA-B has IPSP —
-100 mV
between GABA-A and GABA-B which has more hyperpolarization
GABA-B
a stimulus causes what type of change to a sodium channel
conformational change
what is the fast response in voltage gated channels
sodium influx
sodium influx leads to
depolarization
K+ efflux leads to
hyperpolarization
most pharmacotherapy for seizure is directed at regulating the
voltage gated ion channels
prolong the inactivation phase of Na+ channels
Na+ channel blockers