Flashcards in mini exam 2 Deck (68):
if you fell asleep on a sunny beach lying on your stomach then your dorsal side would likely be sunburned.
what are the tw parts of the central nervous system?
brain and spinal cord
together the somatic nervous system and the autonomic nervous system make up the____ nervous system
the somatic division of the nervous system carries signals from the ___ to the ___.
senses; central nervous system
which division of the nervous system consists of neurons that control the heart, intestines, and other organs
which of the following means "toward the side, away from the midline"?
which plane shows the brain structures as they would be seen from the side?
if one structure is on the left side of the body and the another is on the right, they are said to be ___ to each other.
what is the name given to a cluster of neurons inside the CNS?
what is the name given to a cluster of neurons outside the CNS?
the cell bodies of sensory neurons that are in clusters of neurons outside the spinal cord are called?
dorsal root ganglia
according to the bell-magendie law;
ventral roots carry motor information while dorsal roots carry sensory information
after damage to the ventral roots of the spinal cord, an individual will suffer what kind of loss
control of the peripheral muscles in the affected body area
a cross section of the spinal cord indicates that gray matter is;
densely packed with cell bodies and dendrites
which part of the nervous system prepares the body for "fight or flight" activities?
you are walking after dark. a sudden noise frightens you. your heart pounds, your pulse races, and your breathing rate increases. these responses are due to your:
sympathetic nervous system
what generally is the relationship between the activity of the sympathetic and the parasympathetic nervous systems?
they usually have opposite effects on the same organ
digestive activity is increased by the activation of which branch of the autonomic nervous system?
which kinds of activities are produced from activation of the parasympathetic nervous system?
calmness and relaxation
the parasympathetic nervous system has;
long preganglionic and short postganlionic axons
what structures is composed of the medulla, pons, the midbrain, and certain central structures to the forebrain?
acetylcholine is the only neurotransmitter released by'
the parasympathetic nervous system's postganglionic axons
most of the postganglionic synapses of the sympathetic nervous system use
given their effects on the nervous system, one side effect of over-the-counter cold remedies is increased;
reflexive changes in hear rate and breathing when you are exercising for example, are regulated by which of the following
damage to which hindbrain structure would be most life-threatening
the pons acts as a bridge between
one side of the nervous systems and the other
the cranial nerve nuclei for servers ___ through ___ aren the medulla and pons
vision is to ___ as hearing is to ___
cranial nerve II; cranial verve VIII
the ascending portion of the reticular formation sends outputs to
much of the cerebral cortex
the raphe system ___ the brains readiness to respond to stimuli, and sends axons to the ___
the cerebellum contributes to the control of what function?
in which area of the brain would one find the tectum, tegmenjtum, superior and inferior colliculi and substantial nigra
the limbic system is important for
damage to the thalamus would most likely result in
loss of sensory input to the cortex
sensory information which is not processed by the thalamus includes
although the pituitary is often called the master gland, its activity is regulated by the
which structure is likely to be damaged in parkinson's disease, Huntingtons disease, and other conditions that impair movement
dory, the fish from the movie finding memo had trouble remembering things. she had to repeat things over and over to keep them in her short-term memory, or else the memories were lost. dory most likely had damage to which brain region
the ventricles, central canal, and subarachnoid space are all
filled with cerebrospinal fluid
the choroid plexus
forms the cerebrospinal fluid
membranes that surround the brain and spinal cord are called
cerebrospinal fluid is gradually reabsorbed in the ___ of the brain
a function of the cerebrospinal fluid is to
cushion the brain
hydrocephalus is usually associated with
an obstruction of the flow of CSF
each hemisphere of the cerebral cortex receives most of its input from ___ side of the body and controls the muscles on the ___ side
what do the corpus callousum and anterior commissure have in common
they both connect the two hemispheres
if you could selectively damage the individual laminae of the cortex, damage o which layer would most likely affect visual sensations
layer IV of the occipital cortex
which lobe of the cerebral cortex is most important for visual information
what is one important difference between people who are blind b/c of cortical blindness and others who are blind b/c of problems with their eyes
people with damage to their eyes can still imagine visual scenes
which part of the cerebral is most important for the sense of touch?
the ___ monitors all the information about eye, hand, and body positions and passes it on to the brain areas that control movement
which lobe contributes to perception of movement and recognition of faces?
the "binding problem" is the issue of how we
perceive visual, auditory and other aspects of a stimulus as a single object
damage to the __ often causes people to lose their social inhibitors and to ignore the rules of polite conduct
people with damage of parietal cortex tend to have trouble ___
locating objects in space
the study of relating skull anatomy (bumps and depressions) to behavior is known as
computerized axial tomography creates an image from
an MRI DEVICE CREATS AN IMAGE OF THE BRAIN BASED on
release of electromagnetic energy from atomic nuclei
an electroencephalograph measures
the average activity of the cells in a given region of the brain
which of the following brain imaging techniques measures faint magnetic fields
which of he following methods is dependent upon injection a radioactive chemical into the blood to measure blood flow?
A Lesion is
an area that has been damaged
an ablation is
a brain area that has been removed
so far it appears that the brain features most strongly correlated with intelligence in humans is the
amount of gray matter
what type of brain slice is being shown in hw #3