Podcast
Questions and Answers
What is the primary effect of an excitatory neurotransmitter on an ionotropic receptor?
What is the primary effect of an excitatory neurotransmitter on an ionotropic receptor?
- Depolarization of the postsynaptic membrane (correct)
- Blockage of the release of transmitter
- Hyperpolarization of the postsynaptic membrane
- Increase in anion permeability
Which of the following drugs blocks the uptake of catecholamine at the adrenergic synapse?
Which of the following drugs blocks the uptake of catecholamine at the adrenergic synapse?
- Cocaine (correct)
- Reserpine
- Amphetamine
- Tetanus toxin
What is the effect of opioids on the postsynaptic region?
What is the effect of opioids on the postsynaptic region?
- They cause the release of peptide substance P from sensory neurons
- They induce the release of catecholamine from adrenergic synapse
- They block the receptor for the inhibitory transmitter glycine
- They mimic the action of enkephalin or block its function (correct)
What type of ion channels are directly opened by the binding of a neurotransmitter ligand?
What type of ion channels are directly opened by the binding of a neurotransmitter ligand?
Which of the following receptors is blocked by ketamine?
Which of the following receptors is blocked by ketamine?
Which type of receptor is involved in a membrane-delimited pathway, interacting directly with voltage-gated channels?
Which type of receptor is involved in a membrane-delimited pathway, interacting directly with voltage-gated channels?
What is the site of action of reserpine?
What is the site of action of reserpine?
What is a characteristic of the axons of local circuit neurons?
What is a characteristic of the axons of local circuit neurons?
What is the effect of capsaicin on sensory neurons?
What is the effect of capsaicin on sensory neurons?
What is the effect of metabotropic receptor activation on neurotransmitter release?
What is the effect of metabotropic receptor activation on neurotransmitter release?
What is the result of beta-adrenoreceptor activation?
What is the result of beta-adrenoreceptor activation?
What type of system is composed of large myelinated fibers that can conduct action potentials at a rate of more than 50 m/s?
What type of system is composed of large myelinated fibers that can conduct action potentials at a rate of more than 50 m/s?
Which type of neurons forms interconnecting pathways that transmit signals over long distances?
Which type of neurons forms interconnecting pathways that transmit signals over long distances?
What type of ion channels are highly concentrated in the initial segment of the axon?
What type of ion channels are highly concentrated in the initial segment of the axon?
Which type of receptor has a longer activation time course?
Which type of receptor has a longer activation time course?
What is a characteristic of the diffuse system?
What is a characteristic of the diffuse system?
What is the main difference between relay or projection neurons and local circuit neurons?
What is the main difference between relay or projection neurons and local circuit neurons?
Flashcards are hidden until you start studying
