23 Questions
Which part of the nervous system is responsible for the release of acetylcholine at the neuromuscular junction?
Peripheral nervous system
What is the role of acetylcholine in the central nervous system?
Initiation of REM sleep
Which receptors are stimulated by nicotine and blocked by curare?
Nicotinic acetylcholine ionotropic receptors
Which neurotransmitter is synthesized from L-DOPA?
Dopamine
Which dopamine system plays a major role in movement, particularly in the initiation of voluntary movements?
Nigrostriatal system
Which dopamine system is involved in reward and reinforcement?
Mesolimbic system
Which dopamine system plays a role in high-level cognitive processes such as attention and working memory?
Mesocortical system
Which neurotransmitter is the primary inhibitory neurotransmitter?
GABA
What happens when there is too much glutamate in the brain?
Seizures, excitotoxicity, and brain death
Which receptors control a sodium (Na+) channel?
AMPA receptors
What is the role of NMDA receptors in increasing synaptic connection strength?
They let in Cu+ ions that build new AMPA receptors
Which of the following is true about Long-Term Depression (LTD)?
LTD weakens synaptic strength
What happens when knowledge learned in a semester is not regularly used?
Synaptic strength weakens
Which of the following is true about benzodiazepines (benzos)?
Benzos act as an indirect agonist of GABA
What happens when a person addicted to inhibitory drugs such as benzos stops taking them?
Withdrawal symptoms occur due to imbalanced neurotransmitter levels
Which neurotransmitter is primarily responsible for mood regulation in the brain?
Serotonin
Which class of antidepressants selectively agonizes serotonin and is as effective as tricyclic antidepressants and monoamine oxidase inhibitors, but with fewer side effects?
Selective serotonin reuptake inhibitors
Which drug inhibits the reuptake of serotonin, thereby increasing the availability of serotonin in the synapses?
Fluoxetine
Which class of antidepressants non-selectively agonizes the entire monoamine family, including serotonin, and has a high effectiveness equal to modern antidepressants but with more side effects?
Monoamine oxidase inhibitors
Which of the following is true about dopaminergic drugs and their effects on Parkinson's disease patients?
Dopaminergic drugs cause strange behaviors such as pleasure-seeking, cognitive problems, and psychosis in Parkinson's disease patients.
Which of the following correctly describes the effect of dopamine agonists on the nigrostriatal system?
Dopamine agonists cause hyperactivity by overstimulating the nigrostriatal system.
Which of the following is a dopamine antagonist used in the treatment of schizophrenia?
Chlorpromazine
Which of the following correctly describes the role of norepinephrine and epinephrine?
Norepinephrine and epinephrine act as neurotransmitters in the brain and hormones in the body.
Test your knowledge on the neuromodulatory effects of serotonin and its impact on mood disorders. Explore symptoms such as elevated mood, increased or decreased appetite, and disrupted sleep patterns in this informative quiz.
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