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PCS Exam 2 Questions and Answers
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PCS Exam 2 Questions and Answers Electrical Synapse occurs in CNS, spanning protein connects cell 1 and 2, voltage change in 1 leads to voltage change in 2. Important in cardiac cells Ca++, into _____ flows _____ the cell when action potential reaches the axon terminal Excitatory s...

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  • November 21, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • pcs exam 2 questions and answers
  • electrical synapse occurs in cns spanning protein
  • ca into flows the cell when action

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  • PCSS

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PCS Exam 2 Questions and Answers
Electrical Synapse - answer occurs in CNS, spanning protein connects cell 1 and 2,
voltage change in 1 leads to voltage change in 2. Important in cardiac cells

Ca++, into - answer _____ flows _____ the cell when action potential reaches the
axon terminal

Excitatory synapse - answer postsynaptic channel voltage is greater than threshold

Inhibitory synapse - answer postsynaptic channel voltage is less than threshold

CNS - answer In the _____ 1 EPSP is usually not enough to reach threshold

peripheral neuromuscular synapse - answer In the _____ 1 EPSP is large enough
that a presynaptic AP always leads to a postsynaptic AP

spatial summation - answer multiple presynaptic neurons fire on one postsynaptic
cell

temporal summation - answer same presynaptic neuron fires multiple times in a row
on the postsynaptic cell

Ionotropic Excitatory - answer nAChR is a chemical ______ ______ synaptic
receptor

ACh - answer Neurotransmitter of nAChR

ACh, nicotine - answer Agonists of nAChR

curare, alpha-Bungurtoxin - answer Antagonist of nAChR

0 - answer approximate channel voltage of nAChR

Na and K - answer Conductance mechanism of nAChR

Ionotropic Excitatory - answer AMPAR is a chemical ______ ______ synaptic
receptor

Glutamate - answer Neurotransmitter of AMPAR

Glutamate, AMPA - answer Agonist of AMPAR

CNQX - answer Antagonist of AMPAR

, 0 - answer approximate channel voltage of AMPAR

Na and K - answer Conductance mechanism of AMPAR

Ionotropic Excitatory - answer NMDAR is a chemical _______ ______ synaptic
receptor

Glutamate - answer Neurotransmitter of NMDAR

Glutamate, NMDA - answer Agonists of NMDAR

APV - answer Antagonist of NMDAR

0 - answer approximate channel voltage of NMDAR

Na, K, Ca - answer Conductance mechanism of NMDAR

NMDAR - answer ______ is also voltage gated AKA it must be coupled with another
receptor to be effective

out, in - answer when considering nernst potential it is _____ concentration over
_______ concentration

Ionotropic Inhibitory - answer Glycine receptor is a chemical _____ ______ synaptic
receptor

glycine - answer neurotransmitter for Glycine receptor

glycine - answer agonist of glycine receptor

strychnine - answer Antagonist of glycine receptor

Chloride potential - answer Channel potential of glycine receptor

Ionotropic Inhibitory - answer GABA(A) receptor is a chemical _____ ____ synaptic
receptor

GABA - answer neurotransmitter for GABA(A)

GABA - answer agonist of GABA(A)

Chloride potential - answer Channel potential of GABA(A) receptor

Metabotropic Inhibitory - answer GABA(B) receptor is a chemical _____ ______
synaptic receptor

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