PSYC 312 Ch. 3
How many pairs of cranial nerves do humans have?
12
If you were interested in determining if the volume of the hippocampus is associated with the amount of stress a person was experiencing, which of the following methods would be the best choice?
CAT
Evoked potentials in the brain are most likely to be detected by a(n):
EEG
Which of the following methods provides the best temporal resolution?
EEG and ERPs
Which of the following brain imaging techniques does NOT provide a functional measure of brain activity?
MRI
Which of the following methods is dependent upon injecting a radioactive chemical into the blood to measure blood flow?
PET
A lesion is:
an area that has been damaged.
Sympathetic is to ____ as parasympathetic is to ____.
arousal; relaxation
The purpose of creating a sham lesion is to:
assess the effects of invasive surgery separately from the effects of the lesion itself
Which division of the nervous system consists of neurons that control the heart, intestines, and other organs?
autonomic
What is contained in the ventricles of the brain?
cerebrospinal fluid
Which plane shows brain structures as they would be seen from the front?
coronal
The large bundle of axons connecting the two hemispheres of the brain is called the:
corpus callosum.
Which of the following methods provides the best spatial resolution?
fMRI
Which of the following techniques is dependent upon the release of oxygen from hemoglobin molecules?
fMRI
What is the name given to a cluster of neurons outside the CNS?
ganglion
Cell bodies of motor neurons would most likely be found in which of the following?
gray matter
The hills and valleys of the brain are called ____ and ____, respectively.
gyri, sulci
Which activity is increased by the sympathetic nervous system?
heart rate
What consists of the medulla, the pons, and the cerebellum?
hindbrain
An individual has difficulty remembering certain things after brain damage, but all memories stored before the damage are intact. The brain area most likely damaged is the:
hippocampus.
An impairment of eating, drinking, temperature regulation, or sexual behavior suggests possible damage to which brain structure?
hypothalamus
Which of the following means "toward the side, away from the midline"?
lateral
Membranes that surround the brain and spinal cord are called:
meninges
The cerebellum contributes to the control of what function?
movement
In the spinal cord, white matter is comprised mostly of ____, while gray matter is mostly ____.
myelinated axons, cell bodies
Together, the somatic nervous system and the autonomic nervous system make up the ____ nervous system.
peripheral
A stereotaxic instrument would most likely be used for:
placing an electrode in the brain.
What is the primary target area on the cerebral cortex for touch and other skin sensations?
postcentral gyrus
An MRI device creates an image of the brain based on:
release of electromagnetic energy from atomic nuclei.
Which plane shows brain structures as they would be seen from the side?
sagittal
Which major functions are controlled by the cranial nerves?
sensation and muscle control of the head
After damage to the dorsal roots of the spinal cord, an individual will suffer what kind of loss?
sensation from the affected body area
When someone tickles you, the tickling sensation will be carried by neurons that are part of the ____ nervous system.
somatic
Nerves from the central nervous system convey information to the muscles and glands by way of the:
somatic nervous system.
Which part of the nervous system prepares the body for "fight or flight" activities?
sympathetic
Which of the following structures provides the main source of input to the cerebral cortex?
thalamus
If the spinal cord is cut at a given segment, the brain loses sensation at:
that segment and all segments below it.
An electroencephalograph measures:
the average activity of the cells in a given region of the brain.
Transcranial magnetic stimulation is often used:
to temporarily inactivate part of the brain
Computerized axial tomography creates an image from:
x-rays.