Psychology 103 - Physiological Psychology » Spring 2022 » Chapter 9 Quiz 2
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Question #1
Research on the migration in the neural tube of future neocortical neurons indicates that the destinations of migrating neurons are determined by the location and _____________ of their births.
A.
timing
B.
age
C.
experience
D.
genetics
E.
ease
Question #2
The pattern of migration of future neocortical neurons is referred to as
A.
ependymal.
B.
subventricular.
C.
insidious.
D.
inside out
E.
accelerated.
Question #3
During the formation of the neural tube, a few cells break off from the neural tube and form a structure that lies just dorsal to the tube. This structure is the neural
A.
crest.
B.
canal.
C.
zone.
D.
groove
E.
layer.
Question #4
The neural crest develops into the
A.
ventricular system.
B.
peripheral nervous system.
C.
circulatory system of the brain.
D.
neural tube.
E.
cortex.
Question #5
Cell adhesion molecules are thought to mediate
A.
cell death.
B.
differentiation.
C.
proliferation.
D.
aggregation.
E.
sprouting.
Question #6
Which of the following are amoebalike in their appearance and movements?
A.
B.
radial glial cells
C.
growth cones
D.
retinal ganglion cells
E.
ependymal cells
F.
neural cell-adhesion molecules
Question #7
Growth cones extend and retract finger-like cytoplasmic extensions as if they were feeling their way. These extensions are called
A.
pseudopodia.
B.
adhesion digits.
C.
siphons.
D.
filopodia
E.
growth cone adhesion digits.
Question #8
Sperry’s experiments on eye-rotation in frogs led to an influential hypothesis that explains how growth cones find their way to their targets: the
A.
CAM hypothesis
B.
chemoaffinity hypothesis
C.
radial glial hypothesis.
D.
growth cone hypothesis
E.
cell-adhesion hypothesis
Question #9
Frogs, unlike mammals, have retinal ganglion cells that are capable of
A.
degeneration.
B.
aggregation.
C.
proliferation.
D.
color vision.
E.
regeneration.
Question #10
In frogs, salamanders, and other simple vertebrates, retinal ganglion cells project primarily to the
A.
cerebellum.
B.
tectum.
C.
visual cortex.
D.
tegmentum.
E.
thalamus.
Question #11
In Sperry’s classic studies of eye rotation and regeneration of the optic nerves, he assessed the visual capacities of frogs by assessing their ability to
A.
detect the presence of dim lights
B.
identify colors.
C.
D.
solve maze problems
E.
perform a visual discrimination task
F.
strike accurately at fly-like stimuli
Question #12
The first growth cone of a developing tract to reach the target is called a __________ growth cone.
A.
premier
B.
quick
C.
early
D.
fast
E.
pioneer
Question #13
Only those growth cones that are not pioneer growth cones can normally find their way to their targets by
A.
blueprints
B.
chemoaffinity
C.
fasciculation
D.
topographic gradients
E.
stopping and asking for directions
Question #14
If an optic nerve of a mature frog is transected and half of the associated retina is destroyed,
A.
the axons grow out from the retinal ganglion cells in the remaining half of the retina to targets systematically distributed over the entire optic tectum.
B.
the destroyed retina regenerates and then axons grow out from the complete retina and innervate the optic tectum in the species-typical fashion.
C.
the axons grow out from the retinal ganglion cells in the remaining half of the retina to their original targets on the optic tectum.
D.
half of the optic tectum degenerates
Question #15
In support of the topographic-gradient hypothesis, it has been shown that
A.
axons do not grow out from the retinas until the retinas are fully grown, which is why babies have disproportionately large eyes.
B.
axons do not grow out from the retinas until their target structures (e.g., optic tectums) are fully grown.
C.
retinas and optic tectums always grow in precise proportion to one another.
D.
the synaptic connections originally formed by retinal ganglion cells on the optic tectums gradually shift as both the eyes and optic tectums grow at different rates during development.
Question #16
Synaptogenesis seems to depend on the presence of
A.
growth cones
B.
neurons
C.
pioneer cones
D.
guidance molecules
E.
astrocytes
Question #17
When it comes to synaptogenesis, neurons display a substantial degree of
A.
faithfulness
B.
specificity
C.
inertia.
D.
promiscuity.
E.
monogamy
Question #18
In vitro, neurons will form synapses
A.
only with neurons of the same type.
B.
only with their correct targets.
C.
only with the correct glial cells.
D.
only with glial cells
E.
with almost any neuron.
Question #19
Neuron death
A.
is a stage of normal early neural development
B.
is always followed by regeneration.
C.
is a common, but unfortunate, consequence of accidental exposure to neural gradients.
D.
starts to occur in humans around the age of 50.
E.
is rare in healthy humans until after puberty
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