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Signal Transmission

Terms in this set (32)

The neuron sending the signal is the
Presynaptic neuron
The neuron receiving the message is the
postsynaptic neuron
Axodendritic
axon to dendrite
Axoaxonic
axon to axon
Action potential moves from one cell to the
other as a flow of ions through gap junction
Electrical synapses
Action potential moves from one cell to the
other by means of a neurotransmitter
Chemical synapse
Which synapse can synchronize groups of
neurons or muscle fibers
Electrical synapses via gap junctions that utilize direct cell to cell contact
At the motor end plate of a post synaptic neuron, once neurotransmitters are diffused across the synaptic cleft where do they go?
Bind to neurotransmitter receptor proteins
Neurotransmitters that cause
hyperpolarization (further polarization) of
the postsynaptic membrane are
Inhibitory
Neurotransmitters that depolarize the
postsynaptic membrane cause an
Excitatory graded potential
inhibitory postsynaptic potential (IPSP) cause depolarization or hyperpolarization of the cell
Hyperpolarization
3 ways for neurotransmitter removal
Disunion
Enzymatic degradation
Uptake/reuptake by the cells
if neurotransmitters taken back up by the same cell that released the neurotransmitter
Reuptake
Which membrane proteins helps take excess neutransmitter from the synaptic cleft to another cell
Neurotransmitter transporters
The process by which graded potentials are add together
Summation
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