TEST BANK FOR PSYCHOPHARMACOLOGY:
DRUGS, THE BRAIN AND BEHAVIOR 4TH
EDITION BY MEYER,100% CORRECT
ANSWERS, GRADED A+
absolute refractory period - ANSWER-Short period of time after an action potential
characterized by the inability to open Na+ channels and the inability to respond to
subsequent stimuli.
action potential - ANSWER-Rapid change in electrical signal that is transmitted down
the axon.
amygdala - ANSWER-Part of the limbic system that helps to modulate emotional
behavior.
arachnoid - ANSWER-Membrane consisting of a weblike sublayer that covers the
brain and spinal cord. One of the three meninges.
area postrema - ANSWER-Area in the medulla of the brain stem that is not isolated
from chemicals in the blood. It is responsible for inducing a vomiting response when
a toxic substance is present in the blood.
astrocytes - ANSWER-Star-shaped cells of the nerve tissue that have numerous
extensions and that modulate the chemical environment around neurons,
metabolically assist neurons, and provide phagocytosis for cellular debris.
axon - ANSWER-Long tubular extention from the soma of the nerve cell that
conducts electrical signals away from the cell body and toward the axon terminals.
axon collaterals - ANSWER-Branches formed when an axon splits, giving the neuron
the ability to signal more cells.
axoplasmic transport - ANSWER-Method of transporting proteins along the
microtubules of the cytoskeleton to designations throughout a neuron.
basal ganglia - ANSWER-Nuclei of the telencephalon that includes the caudate,
putamen, and globus pallidus. The structures help regulate motor control.
, brainstem - ANSWER-Portion of the brain, consisting of the medulla, pons, and
midbrain.
central canal - ANSWER-Channel within the center of the spinal cord filled with CSF.
cerebellar peduncles - ANSWER-Large bundles of axons that connect the cerebellum
to the pons, midbrain, or medulla oblongata.
cerebellum - ANSWER-Large structure of the metencephalon that is located on the
dorsal surface of the brain and that is connected to the pons by the cerebellar
peduncles. It is an important sensorimotor control center of the brain.
cerebral ventricles - ANSWER-Cavities within the brain filled with CSF.
chromatin remodeling - ANSWER-One type of environmentally-induced epigenetic
modification that increases or decreases gene transcription.
chromosomes - ANSWER-Linear strands of DNA that carry genes.
coding region - ANSWER-Portion of the gene that codes for the amino acid sequence
of a protein.
convergence - ANSWER-Process by which neurons receive and integrate the
numerous signals from other cells.
corpus callosum - ANSWER-Large pathway connecting corresponding areas of the
two brain hemispheres, allowing communication between each half of the brain.
cytoplasm - ANSWER-Salty gelatinous fluid of the cell, outside of the nucleus and
bounded by the cell membrane.
cytoskeleton - ANSWER-Structural matrix of a cell that is composed of tubular
materials.
dendrites - ANSWER-Projections from the soma that receive signals and information
from other cells.
dendritic spines - ANSWER-Projections from dendrites that increase the receiving
surface area.
depolarization - ANSWER-Change in membrane potential making the inside of the
cell more positive.
divergence - ANSWER-Process by which neurons transmit their integrated signals
back out to many neurons.
DRUGS, THE BRAIN AND BEHAVIOR 4TH
EDITION BY MEYER,100% CORRECT
ANSWERS, GRADED A+
absolute refractory period - ANSWER-Short period of time after an action potential
characterized by the inability to open Na+ channels and the inability to respond to
subsequent stimuli.
action potential - ANSWER-Rapid change in electrical signal that is transmitted down
the axon.
amygdala - ANSWER-Part of the limbic system that helps to modulate emotional
behavior.
arachnoid - ANSWER-Membrane consisting of a weblike sublayer that covers the
brain and spinal cord. One of the three meninges.
area postrema - ANSWER-Area in the medulla of the brain stem that is not isolated
from chemicals in the blood. It is responsible for inducing a vomiting response when
a toxic substance is present in the blood.
astrocytes - ANSWER-Star-shaped cells of the nerve tissue that have numerous
extensions and that modulate the chemical environment around neurons,
metabolically assist neurons, and provide phagocytosis for cellular debris.
axon - ANSWER-Long tubular extention from the soma of the nerve cell that
conducts electrical signals away from the cell body and toward the axon terminals.
axon collaterals - ANSWER-Branches formed when an axon splits, giving the neuron
the ability to signal more cells.
axoplasmic transport - ANSWER-Method of transporting proteins along the
microtubules of the cytoskeleton to designations throughout a neuron.
basal ganglia - ANSWER-Nuclei of the telencephalon that includes the caudate,
putamen, and globus pallidus. The structures help regulate motor control.
, brainstem - ANSWER-Portion of the brain, consisting of the medulla, pons, and
midbrain.
central canal - ANSWER-Channel within the center of the spinal cord filled with CSF.
cerebellar peduncles - ANSWER-Large bundles of axons that connect the cerebellum
to the pons, midbrain, or medulla oblongata.
cerebellum - ANSWER-Large structure of the metencephalon that is located on the
dorsal surface of the brain and that is connected to the pons by the cerebellar
peduncles. It is an important sensorimotor control center of the brain.
cerebral ventricles - ANSWER-Cavities within the brain filled with CSF.
chromatin remodeling - ANSWER-One type of environmentally-induced epigenetic
modification that increases or decreases gene transcription.
chromosomes - ANSWER-Linear strands of DNA that carry genes.
coding region - ANSWER-Portion of the gene that codes for the amino acid sequence
of a protein.
convergence - ANSWER-Process by which neurons receive and integrate the
numerous signals from other cells.
corpus callosum - ANSWER-Large pathway connecting corresponding areas of the
two brain hemispheres, allowing communication between each half of the brain.
cytoplasm - ANSWER-Salty gelatinous fluid of the cell, outside of the nucleus and
bounded by the cell membrane.
cytoskeleton - ANSWER-Structural matrix of a cell that is composed of tubular
materials.
dendrites - ANSWER-Projections from the soma that receive signals and information
from other cells.
dendritic spines - ANSWER-Projections from dendrites that increase the receiving
surface area.
depolarization - ANSWER-Change in membrane potential making the inside of the
cell more positive.
divergence - ANSWER-Process by which neurons transmit their integrated signals
back out to many neurons.
