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Explain the difference between slow and fast chemical transmission. Fig. 8.23

Explain the difference between slow and fast chemical transmission. Fig. 8.23

Phlebotomy Essentials
Phlebotomy Essentials
6th Edition
ISBN:9781451194524
Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)
Chapter1: Phlebotomy: Past And Present And The Healthcare Setting
Section: Chapter Questions
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  1. Explain the difference between slow and fast chemical transmission. Fig. 8.23

 

FIG. 8.23 ESSENTIALS Fast and slow postsynaptic responses Presynaptic axon terminal Fast responses are mediated by ion channels. Slow responses are mediated by G protein-coupled receptors. Neurotransmitters create Neuromodulators create rapid, short-acting fast synaptic potentials. slow synaptic potentials and long-term effects. Neurocrine Chemically gated ion channel G protein-coupled receptor R Inactive Postsynaptic cell pathway Alters open state of ion channels Activated second messenger pathway Modifies existing proteins or regulates synthesis of new proteins lon channels open lon channels close More K* More Nat in Less Na* in Less K+ out out or CIF in IPSP = Coordinated intracellular EPSP = excitatory depolarization inhibitory hyperpolarization EPSP = excitatory depolarization response
Transcribed Image Text:FIG. 8.23 ESSENTIALS Fast and slow postsynaptic responses Presynaptic axon terminal Fast responses are mediated by ion channels. Slow responses are mediated by G protein-coupled receptors. Neurotransmitters create Neuromodulators create rapid, short-acting fast synaptic potentials. slow synaptic potentials and long-term effects. Neurocrine Chemically gated ion channel G protein-coupled receptor R Inactive Postsynaptic cell pathway Alters open state of ion channels Activated second messenger pathway Modifies existing proteins or regulates synthesis of new proteins lon channels open lon channels close More K* More Nat in Less Na* in Less K+ out out or CIF in IPSP = Coordinated intracellular EPSP = excitatory depolarization inhibitory hyperpolarization EPSP = excitatory depolarization response
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