Synapses
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What is a synapse
The junction between one neurone and another
What is the change in firing rate caused by
A change in the signal from upstream neurone
What does it mean when synaptic transmission is excitatory
Varying in the same direction
What does it mean when synaptic transmission is inhibitory
Varying in different directions
What happens to amount of neurotransmitter when rate increases
A higher concentration of
What happens to action potential with higher neurotransmitter conc
A greater probability of new action potential downstream
What can enzymes do to neurotransmitters
Takes them away and breaks them down when there’s excess to keep levels under control
What do pumps do
Pumps in upstream neurone sits in membrane and takes excess neurone transmitters called reuptake
Are ion channels complementary?
Yes,neurotransmitter fits perfect because they are a specific shape