40 terms

Psyc 220 Exam 2 Review

Caudal is to rostral as
posterior is to anterior
administration of a drug that binds at a postsynaptic site different from that of the neurotransmitter, and facillitates the opening of ion channels would be termed an
indirect agonist
repeated administration of a constant drug typically produces ___________, which is defined as a(n) ________ effect of the drug.
tolerance; reduced
Identifies function by eliminating structure
In Situ Hybridization
visualize region of gene expression
mesures amount of neurotransmitters in the brain
examines functions of neurons
visualizes where neurotransmitters act
A _________________ is a large groove in the surface of the human cortex.
a ________________ is a bulge located between adjacent grooves in the surface of human cortex.
NOT: ventricle, sulcus, cerebral aqueduct or fissure
Regions of cortex NOT DIRECTLY concerned with sensation or movement
association cortex
regions of left and right hemispheres are interconnected via axons of the _____________.
corpus callosum
"nucleus" refers to
none of the above
in mammals, the superior colliculi are involved in ___________
visual reflexes
which structure is comprises the metecephalon?
pons and cerebellum
which structure is NOT part of peripheral nervous system?
spinal cord
Which is true about spinal nerves?
the cell bodies of outgoing fibers lie in the grey matter of spinal cord
the ____________ drug route of drug administration is commonly used to treat small lab animals
____________ fibers send messages toward the brain
the _______________ branch of the nervous system receives sensory info and controls muscle movement
a key function of the automatic nervous system involves control of
smooth muscle, cardiac muscle, glands and "vegetative bodily processes.
the parasympathetic division of the ANS is involved in
activities that increase levels of stored energy within the body
________________ refers to the process by which drugs are absorbed, distributed within the body, and excerted from it.
A _________ section is made through the human brain parallel to the ground
which of the following is true of the relation between drug affinity and drug effects?
a drug with high affinity for a receptor wil exert an effect at a low dose.
Terms that are alike
sagittal, horizontal, transverse
drugs that block or inhibit postsynaptic receptor effects are termed
a key advantage of an fMRI is that the method can
identify where a particular brain region is active
administration of a drug that blocks acetycholinesterase in the brain would be expected to
increase the amount of acetycholine in the synapse
the key rationale for lesion (ablation) studies is
the change in behavior that follows a brain lesion can give important clues about a function of an ablated brain area
the _________ is a device that holds an animal head fixed in space that can be used to implant an electrode into the brain
stereotaxic apparatus
more neurons of the sympathetic division of the ANS project from the ________ to the ________.
gray matter of the thoratic and lumbar spinal cord; sympathetic ganglia
The three numbers listed on a page of a stereotaxic atlas describe _______.
location of the brain structure in 3 planes relative to reference point
the most commonly used method for tracing efferent axons involvews the infusion of _______ into the brain region.
damage to the __________ would most likely be fatal.
medulla oblongata
which device records the electrical activity of a single neuron in a animal brain?
primary auditory cortex is located within which cortical lobe?
Differetiation is ____________.
the forming of dendrites and axon within a cell.
A drug the hyperpolarizes the postsynaptic membrane, similar to what occurs at a synapse that usually generates IPSP is a(n)
the hindbrain
does not contain inferior or superior colliculi, is not part of cerebellum, and does not control sense of smell.