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Topic starter
Which chemicals pass across the synaptic gap and increase the possibility the next neuron in the chain will fire?
(A) synaptic peptides
(B) inhibitory neurotransmitters
(C) adrenaline-type exciters
(D) excitatory neurotransmitters
(E) potassium and sodium
Spoiler
Answer
(D) excitatory neurotransmitters
Spoiler
Explanation
Excitatory neurotransmitters increase the likelihood that the next neuron will fire. Inhibitory neurotransmitters actually decrease the chance the next neuron will fire when received by the cells’ dendrites. Synaptic peptides and adrenaline-type exciters are not relevant to neuroanatomy (or any other anatomy—they are nonsense terms!). Potassium and sodium are integral in the process of depolarization but are not secreted from terminal buttons into the synaptic gap.
Posted : 25/01/2024 2:26 pm