10 Questions
Which ion is responsible for the resting membrane potential (RMP) of -70mV?
K+
At what voltage do voltage-gated channels open?
-40mV
What happens when an action potential (AP) arrives at the synaptic terminal?
Voltage-gated Ca2+ channels open
What is the purpose of neurotransmitters (NT) in the synapse?
To bind to receptors in the postsynaptic membrane
Which types of receptors are considered classical neurotransmitters?
Ligand-gated
What is the main factor that determines the frequency of action potentials (APs)?
The strength of the stimulus
Which type of receptor is classified as a ligand-gated receptor?
Muscarinic receptor
What is the definition of a classical neurotransmitter?
A molecule that acts like a neurotransmitter experimentally
Which type of neurotransmitter acts as a fast-acting neurotransmitter in the central nervous system (CNS)?
GABA
What is the main role of voltage-gated calcium (Ca2+) channels in the synaptic terminal?
To cause vesicle fusion with the presynaptic membrane
Test your knowledge on the fundamentals of neural membrane potential, action potentials, and synaptic transmission in this quiz.
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