Serotonin and Mood Disorders

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Which neurotransmitter is responsible for making muscles fire in the peripheral nervous system?

Serotonin

GABA

Acetylcholine (correct)

Dopamine

Where in the central nervous system is the major concentration of Acetylcholine found?

Dorsolateral pons (correct)

Hippocampus

Cerebellum

Frontal cortex

Which receptors are stimulated by nicotine and blocked by curare?

Nicotinic receptors (correct)

Dopamine receptors

Serotonin receptors

Muscarinic receptors

Which neurotransmitter is a catecholamine synthesized from L-DOPA?

Dopamine Signup and view all the answers

Which dopamine system plays a major role in movement, particularly in the initiation of voluntary movements?

Nigrostriatal system Signup and view all the answers

Which dopamine system is involved in the phenomenon of drug tolerance?

Mesolimbic system Signup and view all the answers

Which dopamine system plays a role in high-level cognitive processes such as attention and working memory?

Mesocortical system Signup and view all the answers

Which neurotransmitter is primarily responsible for mood regulation in the brain?

Serotonin Signup and view all the answers

Which class of antidepressants selectively agonizes serotonin, resulting in fewer side effects compared to other classes?

Selective serotonin reuptake inhibitors Signup and view all the answers

Which neurotransmitter is blocked by drowsiness-inducing antihistamines?

Histamine Signup and view all the answers

Which drug inhibits the reuptake of serotonin, thereby increasing its availability in the synapses?

Fluoxetine Signup and view all the answers

Which neurotransmitter is the primary inhibitory neurotransmitter?

GABA Signup and view all the answers

What happens when there is too much glutamate in the brain?

Seizures and excitotoxicity Signup and view all the answers

Which receptors control a sodium (Na+) channel?

AMPA receptors Signup and view all the answers

What is the role of NMDA receptors in increasing synaptic connection strength?

They let in Cu+ ions to build new AMPA receptors Signup and view all the answers

Which of the following is true about dopaminergic drugs?

Dopaminergic drugs can cause hyperactivity due to overstimulation of the mesocortical system Signup and view all the answers

Which of the following is the most potent dopamine agonist?

Methamphetamine Signup and view all the answers

What is the role of norepinephrine and epinephrine as neurotransmitters in the brain?

They put you on alert and are highly excitatory Signup and view all the answers

What is the precursor to serotonin?

5-HTP Signup and view all the answers

Which of the following is the correct order of benzodiazepines from shortest to longest half-life?

Xanax, Ativan, Valium, Klonopin Signup and view all the answers

Which of the following is true about GABA receptors in non-drug addicts' brains?

They have balanced excitatory and inhibitory neurotransmitter levels Signup and view all the answers

What is the main function of Long-Term Depression?

To weaken synaptic strength Signup and view all the answers

What is the effect of adenosine build-up in neurons?

Tiredness and a foggy head Signup and view all the answers