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Anatomy & Physiology 101 Mastering A&P Ch 13 Practice

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Which CNS structure is a thick tract of white matter that interconnects the two cerebral hemispheres?
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corpus callosum
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The limbic system:
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is also known as the motivational system.
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Which is correct regarding the prefrontal cortex?
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It coordinates information relayed from the association areas of the cortex.
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Which general sensory receptors are fast-adapting receptors and are most sensitive to pulsing or high-frequency vibrating stimuli?
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lamellated corpuscles
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Which of the following lies between the cerebrum and the brainstem?
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diencephalon
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________ are chambers within the brain that contain cerebrospinal fluid.
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Ventricles
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Sensory information is processed and relayed to the cerebrum by the
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thalamus
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Autonomic centers that control blood pressure, heart rate, and digestion are located in the
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medulla oblongata
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The neural tissue is isolated from the general circulation by the ________.
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blood-brain barrier
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The layer of the meninges that closely follows every gyrus and sulcus is the
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pia mater
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The cells that cover the outer surfaces of CNS capillaries cells are the
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astrocytes
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What is produced by the structure labeled “2”?
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cerebrospinal fluid
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Absorption at the arachnoid granulations returns CSF to the
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venous circulation
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Which of the following is not a function of cerebrospinal fluid?
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provides ATP for impulse transmission
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What structure is covered by many blood vessels and adheres tightly to the surface of the brain?
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pia mater
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What contains a spiderweb-like network of cells and fibers through which cerebrospinal fluid flows?
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subarachnoid space
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Identify the structure labeled “8.”
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arachnoid granulation
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Which structure coordinates complex motor patterns through feedback loops?
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cerebellum
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The pons contains
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sensory and motor nuclei for four cranial nerves. nuclei concerned with the control of respiration. tracts that link the cerebellum with the brainstem. all of the above
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The control of heart rate and blood pressure is based in the
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medulla oblongata
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Overseeing the postural muscles of the body and making rapid adjustments to maintain balance and equilibrium are functions of the
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cerebellum
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The ________ provides the principal link between the nervous and endocrine systems.
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hypothalamus
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Which of the following is a function of the thalamus?
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process sensory information and relay it to the cerebrum
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Joe begins to experience mood swings and disturbed thirst and hunger. Imaging studies indicate that a brain tumor is the likely cause of these disorders. In what part of the brain is the tumor most likely located?
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hypothalamus
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Which of the following is a function of the hypothalamus?
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coordinates day-night cycles of activity/inactivity controls autonomic centers regulates body temperature secretes hormones all of the above
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Terry suffers from dissociation of memories from their emotional content as the result of an automobile accident. What system of the brain is probably damaged?
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the limbic system
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Which of the following is not a property of the limbic system?
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functions in maintaining homeostasis in cold weather
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The basal nuclei
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provide the general pattern and rhythm for movements such as walking
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The basal nuclei
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provide the background patterns of movement involved in voluntary motor activities
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Divisions of the cerebral hemispheres that are named after the overlying skull bones are
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lobes
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The primary motor cortex is the surface of the
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precentral gyrus
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The surface of the postcentral gyrus contains the ________ cortex
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primary sensory
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The hemisphere of the brain that performs spatial visualization and analysis is the ________ hemisphere.
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right
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The auditory cortex is located in the
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temporal lobe
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The highest levels of information processing occur in the
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cerebrum
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Bob is struck on the left side of the head and is knocked unconscious. When he recovers consciousness, he can hear individual words but cannot understand the meaning of phrases or sentences. This implies damage to his
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general interpretive area
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In most cases, the general interpretive center and the speech center are located in the ________ cerebral hemisphere.
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left
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After suffering a stroke, Mary finds that she cannot move her right arm. This would suggest that the stroke damage is in the area of the ________ lobe.
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left frontal
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The visual cortex is located in the
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occipital lobe
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The region of the brain responsible for predicting the consequence of events or actions is the
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prefrontal cerebral cortex
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The general interpretive area
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allows us to interpret what is read or heard
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After suffering a blow to the back of the head, Phil loses his vision. The blow probably caused damage to the
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occipital lobe
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________ centers receive information from many association areas and direct extremely complex motor activities such as speech.
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Integrative
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Olfactory receptors send axons through the cribriform plate and synapse on neurons in the
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olfactory bulb
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There are ________ pairs of cranial nerves
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12
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You suspect your friend has damage to cranial nerve I when he is unable to
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smell his food
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________ is a conscious awareness of a sensation.
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Perception
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The term general senses refers to sensitivity to all of the following, except
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taste
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The general senses
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involve receptors that are relatively simple in structure
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A receptor that responds to chemicals dissolved in solution is a ________
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chemoreceptor
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The ________ is the area monitored by a single receptor cell.
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receptive field
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A receptor that contains many mechanically gated ion channels would function best as a
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tactile receptor
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________ is a reduction in sensitivity in the presence of a constant stimulus.
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Adaptation
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Thermoreceptors
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are found within the dermis. are free nerve endings. for “cold” are structurally indistinguishable from those for “warm.” all of the above
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Receptors that monitor the position of joints belong to the category called
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proprioceptors
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Mechanoreceptors that respond to changes in blood pressure are called
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baroreceptors
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Mechanoreceptors might detect which of the following sensations?
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pressure touch vibration muscle length all of the above
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Autonomic motor neurons
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conduct impulses to smooth and cardiac muscles and glands
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Each of the following effects is associated with stimulation by sympathetic nerves, except
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decreased heart rate
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Stimulation of the reticular formation region of the midbrain results in
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increased consciousness
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The respiratory rhythmicity center is located in the
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medulla oblongata
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The cerebellum adjusts motor activity in response to all of the following, except
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smell sensations