10 Questions
What is the primary effect of rapid inhibition on the postsynaptic membrane?
Hyperpolarization
Which of the following is an example of long-term inhibition?
Activation of the second messenger system
What is the main way of removing neuropeptides from the synaptic cleft?
Diffusion
Which ion channel is activated during rapid inhibition?
Cl channels and/or K+ channels
What is the effect of activating membrane enzymes that inhibit the metabolic machinery of the postsynaptic neuron?
Decreased excitability of the postsynaptic neuron
Which of the following is NOT a way of removing neurotransmitters from the synaptic cleft?
Phagocytosis
What is the net effect of the rapid inhibition on the postsynaptic membrane potential?
Hyperpolarization
Which of the following is an example of a second messenger system?
cAMP signaling pathway
What is the primary function of cholinesterase enzyme in the synaptic cleft?
To break down acetylcholine
Which of the following types of neurons primarily uses active re-uptake to remove neurotransmitters from the synaptic cleft?
Sympathetic neurons
This quiz covers the definition and structure of synapses, including the role of presynaptic and postsynaptic neurons, and the function of synaptic knobs. Test your knowledge of the area of contact between two neurons and how impulses are conducted. Learn about the key components of synapses and how they enable neural communication.
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