Chpt 14 anatomy
Sensory information is processed and relayed to the cerebrum by the -pons. -thalamus -midbrain. -cerebellum. -medulla oblongata.
thalamus
The ________ filters and relays sensory information to cerebral cortex. -thalamus -cerebellum -medulla oblongata -pons -cerebrum
thalamus
There are ________ pairs of cranial nerves. -22 -31 -12 -2 -6
12
The choroid plexus produces CSF at a rate of about -150 mL/day. -250 mL/day. -500 mL/day. -50 mL/day. -1000 mL/day.
500 mL/day
The adult human brain contains almost ________ of the body's neural tissue. -15 percent -97 percent -35 percent -25 percent -68 percent
97 percent
________ is a disorder affecting the ability to speak or read. -Apraxia -Ataxia -Bell's palsy -Aphasia -Dysphagia
Aphasia
The cranial nerves that innervate the eye muscles are -II and VI. -II, III, and IV. -I, II, and III. -III, IV, and VI. -III and V.
III, IV, and VI
Which of these is not a property of cerebrospinal fluid (CSF)? -It is produced at the arachnoid granulations. -It protects the brain and spinal cord. -It circulates in the subarachnoid space. -It supports the brain.
It is produced at the arachnoid granulations.
Which of these is not a property of the limbic system? -It is important in learning and memory. - It includes the hippocampus. -It regulates body temperature. -It is central to our ability to experience emotions.
It regulates body temperature
The general interpretive area -is responsible for predicting future consequences. -allows us to interpret what is read or heard. -is the site of long-term memory storage. -is the speech center of the brain. -may be damaged by even a small stroke.
allows us to interpret what is read or heard
Which of these electroencephalogram (EEG) waveforms is characteristic of a resting, healthy adult? -alpha waves -theta waves -beta waves -delta waves
alpha waves
The CSF leaves the CNS and enters the circulation at the __________. -arachnoid trabeculae -arachnoid granulations -denticular ligaments -pia mater
arachnoid granulations
The white matter of the cerebellum forms the -folia. -arbor vitae. -pyramid. -flocculonodular lobe. -vermis.
arbor vitae
The cells that cover the outer surfaces of CNS capillary endothelial cells are the -astrocytes. -monocytes. -leukocytes. -blastocytes. -lymphocytes.
astrocytes
The presence of many large, highly-branched Purkinje cells in a sample of brain tissue indicates that it came from the -cerebellar cortex. -arbor vitae. -medulla. -cerebral cortex. -pons.
cerebellar cortex
Making rapid postural adjustments is a major function of the __________. -medulla oblongata -cerebrum -diencephalons -cerebellum
cerebellum
The center in the medulla oblongata where the first synapse in the auditory pathway is made is the __________. -reticular formation -posterior column nucleus -vestibular nucleus -cochlear nucleus
cochlear nucleus
The corpus callosum is composed of -commissural fibers. -arcuate fibers. -association fibers. -projection fibers. -longitudinal fasciculi.
commissural fibers
The mamillary bodies of the hypothalamus -control feeding reflexes. -control heart rate and blood pressure. -secrete oxytocin. -secrete antidiuretic hormone. -regulate lactation.
control feeding reflexes
A(n) ________ is a printed record of the brain's electrical activity over a period of time. -electrocardiogram -x-ray -electroencephalogram -CT scan -MRI
electroencephalogram
Which of the following is not a component of the limbic system? -fornix -globus pallidus -amygdaloid body -cingulate gyrus
globus pallidus
Specialized ________ cells form the secretory component of the choroid plexus. -epididymal -astrocytes -blood -ependymal -appended
ependymal
Which of the following is (are) true of the epithalamus? -processes sensory information and relays it to the cerebrum -forms the cerebrum -contains the mamillary body -forms the roof of the diencephalon -creates the lateral ventricles
forms the roof of the diencephalon
The region of cerebrum anterior to the central sulcus is the __________ lobe. -occipital -frontal -parietal -temporal
frontal
Which sensation(s) does the vestibulocochlear nerve carry? -hearing -hearing, equilibrium, and taste -equilibrium -hearing and equilibrium -atmospheric pressure
hearing and equilibrium
The ________ is important in storage and recall of new long-term memories. -fornix -hippocampus -mamillary bodies -amygdaloid body -cingulate gyrus
hippocampus
The ________ provides the principal link between the nervous and endocrine systems. -pons -medulla oblongata -cerebrum -hypothalamus -cerebellum
hypothalamus
Parkinson's disease is the result of -inadequate production of dopamine by substantia nigra neurons. -hyperactivity of the limbic system. -decreased levels of acetylcholine from neurons in the substantia nigra. -inadequate production of GABA by neurons in the basal nuclei. -weak response of the red nuclei of the mesencephalon.
inadequate production of dopamine by substantia nigra neurons
Autonomic centers that control blood pressure, heart rate, and digestion are located in the -diencephalon. -cerebellum. -medulla oblongata. -mesencephalon. -pons.
medulla oblongata
Stimulation of the reticular formation results in -increased consciousness. -sleep. -coughing. -decreased cerebral function. -coma.
increased consciousness
The medulla oblongata relays auditory information to the -inferior colliculi. -cerebral peduncles. -superior colliculi. -substantia nigra. -red nuclei.
inferior colliculi
Cerebrospinal fluid -has almost the same composition as blood plasma. -is normally produced twice as fast as it is removed. -is secreted by ependymal cells. -is formed by a passive process. -contains blood cells and blood plasma.
is secreted by ependymal cells
Cerebrospinal fluid enters the subarachnoid space through the -interventricular foramina. -aqueduct of Sylvius. -dural sinus. -falx cerebri. -lateral and median apertures.
lateral and median apertures
The optic tracts carry visual information from the retina to the -supraoptic nuclei. -lateral geniculates. -pulvinar. -paraventricular nuclei. -medial geniculates.
lateral geniculates
The cerebrum is divided into two hemispheres by the __________. -sagittal sulcus -central sulcus -sagittal sinus -longitudinal fissure
longitudinal fissure
The ________ relay auditory information to the auditory cortex. -lateral geniculates -medial geniculates -supraoptic nuclei -paraventricular nuclei -pulvinar
medial geniculates
The cardiovascular reflexes are based in the -spinal cord. -medulla oblongata. -mesencephalon. -cerebrum. -cerebellum.
medulla oblongata
The control of heart rate and blood pressure is based in the -diencephalon. -medulla oblongata. -cerebrum. -cerebellum. -heart.
medulla oblongata
The tract that links the cerebellum with the pons is the -superior cerebellar peduncle. -longitudinal fibers. -obverse fibers. -middle cerebellar peduncle. -inferior cerebellar peduncle.
middle cerebellar peduncle
The visual cortex is located in the -insula. -occipital lobe. -parietal lobe. -temporal lobe. -frontal lobe.
occipital lobe
Droopy eyelids and double vision can result from injury to the ________ nerve. -abducens -optic -oculomotor -olfactory -trochlear
oculomotor
The primary somatosensory cortex is found on the __________. -precentral gyrus -postcentral gyrus -cingulate gyrus -frontal lobe
postcentral gyrus
The primary motor cortex is the surface of the -arcuate gyrus. -precentral gyrus. -corpus callosum. -postcentral gyrus. -insula.
precentral gyrus
Which of the following is a function of the thalamus? -store memories -regulate food intake -secrete cerebrospinal fluid -secrete melatonin -process sensory information and relay it to the cerebrum
process sensory information and relay it to the cerebrum
Which of the following is not a function of cerebrospinal fluid? -acts as a transport medium for nutrients -acts as a transport medium for waste products -provides cushioning for delicate neural tissues -provides ATP for impulse transmission -provides buoyant support for the brain
provides ATP for impulse transmission
Damage to the superior colliculi would interfere with the reflex ability to -react to a bright light. -voluntarily move the arm. -express rage. -maintain proper posture. -react to loud noises.
react to a bright light
The tympanic reflex -causes the pupil of the eye to constrict when subjected to a bright light. -triggers a blink in response to sudden noises. -restricts the movement of auditory ossicles. -produces rapid blinking when something comes into contact with the cornea. -causes the eyes to move in the opposite direction of a rotational movement of the head.
restricts the movement of auditory ossicles.
You suspect your friend has damage to cranial nerve I when he is unable to -blink his eyes. -nod his head. -smell his food. -smile. -hear your voice.
smell his food
What contains a spider web-like network of cells and fibers through which cerebrospinal fluid flows? -falx cerebri -subarachnoid space -pia mater -dural sinus -subdural space
subarachnoid space
Injury to this center in the mesencephalon may lead to Parkinson's disease. -mamillary bodies -substantia nigra -superior colliculi -red nuclei
substantia nigra
The ________ receive visual input from the lateral geniculates. -superior colliculi -substantia nigra -inferior colliculi -cerebral peduncles -red nuclei
superior colliculi
Which part of the mesencephalon coordinates reflex eye movements? -superior colliculi -substantia nigra -red nuclei - mamillary bodies
superior colliculi
The auditory cortex is located in the -frontal lobe. -parietal lobe. -insula. -occipital lobe. -temporal lobe.
temporal lobe
The respiratory rhythmicity center is located in -the cerebrum. -the midbrain. -the cerebellum. -the pons. -the medulla oblongata.
the medulla oblongata
Which of the following is a function of the diencephalon? -to secrete CSF -to regulate body temperature -to process and transmit sensory information -All of these are functions of the diencephalon.
to regulate body temperature
The cranial nerve that has three major branches is the -abducens. -facial. -trigeminal. -glossopharyngeal. -vagus.
trigeminal
The cerebellar hemispheres are separated by a band of cortex called the -arbor vitae. -vermis. -pyramid. -flocculonodular lobe. -folia.
vermis
