neurotransmitters and neuromodulators DP 2

Question 1

neurotransmitters glutamate

Answer 1

primary excitatory neurotransmitter in brain
enhances neural transmission by making the post synaptic neuron more likely to fire action potential

Question 2

neurotransmitters GABA

Answer 2

primary inhibitory neurotransmitter in brain
makes post synaptic neurons less likely to fire an action potenial slowing down the neural transmission

Question 3

neuromodulator dopamine

Answer 3

responsible for regulating voluntary movement, experience of pleasure, reward base learning

Question 4

neuromodulator serotonin

Answer 4

responsible for regulating mood and sleep and generally has an inhibitor effects on post synaptic neuron

Question 5

communication across synapse

Answer 5

1. electrical impulse (action potential) reaches axon terminal
2. calcium ions enter, causing the neurotransmitters to be released into the synaptic gap
3. if the neurochemicals that acts as an key and the receptors that act as an lock have complementary shapes they will bind together
4. the post synaptic neuron will respond(release action potential)

Question 6

how neuromodulators effect the neurotransmitters

Answer 6

changes the responsiveness of receptor sites, therefor enhancing the excitatory and inhibitory effects of neurotransmitters
changes the release pattern of a neurotransmitter from the pre synaptic neuron