All of the following are ways in which a neurotransmitter is quickly removed from
receptor sites and from the synaptic cleft, EXCEPT: correct answers exocytosis
Changes in activity in this activating system are related to symptoms observed in
obsessive-compulsive disorder. correct answers serotonergic system
Schizophrenia has been linked to excessive ____ levels. correct answers dopamine
Relative to a control neuron, the number and size of synapses: correct answers
decrease in habituated animals and increase in sensitized animals
Axon terminals are found on the ______ whereas dendritic spines are found on the
______. correct answers presynaptic membrane; postsynaptic membrane
Parkinson's disease is linked with the loss of ______ neurons in the midbrain. correct
answers dopamine
Which of the following best characterizes Type I and/or Type II synapses? correct
answers Type I synapses are excitatory and have round synaptic vesicles
Which of the following is not an amino acid neurotransmitter? correct answers
dopamine
Acetylcholine has been related to: correct answers Alzheimer's disease
Mania has been related to: correct answers norepinephrine
Habituation is the result of: correct answers excitatory postsynaptic potentials being
smaller
L-dopa is effective in the treatment of Parkinson's disease because it correct answers
increases the amount of dopamine in remaining synapses.
Which is the correct order of methods of drug administration, from least efficient to most
efficient? correct answers oral administration, inhalation, injection
Glucose and amino acids, which are required for proper brain function, gain access to
the brain via: correct answers active transport; these molecules cannot cross the blood-
brain barrier without assistance.