mastering map3
The layer of the meninges that closely follows every gyrus and sulcus is the ANSWER: neural cortex. pia mater. arachnoid membrane. subarachnoid mater. dura mater.
pia mater.
There are ________ pairs of cranial nerves. ANSWER: 6 22 12 2 31
12
Which of the following help to protect the brain? ANSWER: the bones of the skull the blood-brain barrier the CSF the cranial meninges All of the answers are correct.
All of the answers are correct.
The cerebellum can be permanently damaged by stroke or temporarily affected by drugs or alcohol. The resulting disturbance in motor control is known as ANSWER: ataxia. dysphagia. aphasia. Parkinson's. epilepsy.
ataxia.
The medulla oblongata, pons, and midbrain comprise the ANSWER: basal ganglia. mesencephalon. ventricles. brain stem. cortical lobes of the cerebrum.
brain stem.
Overseeing the postural muscles of the body and making rapid adjustments to maintain balance and equilibrium are functions of the ANSWER: mesencephalon. medulla oblongata. pons. cerebrum. cerebellum.
cerebellum.
The visual cortex is located in the ANSWER: frontal lobe. occipital lobe. temporal lobe. insula. parietal lobe.
occipital lobe.
The surface of the postcentral gyrus contains the ________ cortex. ANSWER: primary sensory visual auditory primary motor olfactory
primary sensory
The auditory cortex is located in the ANSWER: parietal lobe. insula. frontal lobe. temporal lobe. occipital lobe.
temporal lobe.
The ________ filters and relays sensory information to cerebral cortex. ANSWER: cerebellum medulla oblongata pons thalamus cerebrum
thalamus
Damage to the medulla oblongata can result in death because ANSWER: the blood might not be able to circulated properly around the brain. digestive processes are controlled by the medulla. electrical activity originates within the medulla. control of body temperature and thermoregulation are its functions. the vital centers for blood pressure, heart rate, and breathing are located there.
the vital centers for blood pressure, heart rate, and breathing are located there.
Jean needs to have a tooth in her mandible filled. Her dentist injects a local anesthetic to block pain afferents in one of her cranial nerves. What cranial nerve does the dentist numb? ANSWER: glossopharyngeal hypoglossal trigeminal trochlear facial
trigeminal
Chambers within the brain that contain cerebrospinal fluid are called ANSWER: aqueducts. plexuses. ganglia. ventricles. sinuses.
ventricles
Which of the following is a property of the blood-brain barrier? ANSWER: Astrocytes surround the CNS capillaries. It is absent in portions of the hypothalamus. The capillary endothelial cells are interconnected by tight junctions. It is generally permeable to lipid-soluble compounds. All of the answers are correct.
All of the answers are correct.
Which of these is found in the pons? ANSWER: nuclei for four cranial nerves respiratory control nuclei tracts to the cerebellum All of these are found in the pons.
All of these are found in the pons.
Damage to the substantia nigra causes a decrease in the neurotransmitter dopamine. This causes a gradual, generalized increase in muscle tone, which is the main symptom of ANSWER: Alzheimer's disease. rabies. tetanus. myasthenia gravis. Parkinson's disease.
Parkinson's disease.
Which of the cranial nerves is named for the fact that it "wanders," that is, innervates structures throughout the thorax and abdomen? ANSWER: XII VIII X IX XI
X
A(n) ________ is a printed record of the brain's electrical activity over a period of time. ANSWER: electrocardiogram CT scan MRI x-ray electroencephalogram
electroencephalogram
Which sensation(s) does the vestibulocochlear nerve carry? ANSWER: hearing and equilibrium atmospheric pressure equilibrium hearing hearing, equilibrium, and taste
hearing and equilibrium
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? ANSWER: basal nuclei hypothalamus reticular formation prefrontal cortex postcentral gyrus
hypothalamus
The ________ provides the principal link between the nervous and endocrine systems. ANSWER: cerebellum medulla oblongata pons hypothalamus cerebrum
hypothalamus
The brain requires a substantial blood supply. The vessels that deliver blood to the brain are the ANSWER: facial arteries. external carotid arteries. dural sinuses. jugular veins. internal carotid and vertebral arteries.
internal carotid and vertebral arteries.
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. ANSWER: right frontal left frontal occipital left temporal right temporal
left frontal
The cerebrum is divided into two hemispheres by the __________. ANSWER: longitudinal fissure corpus callosum central sulcus postcentral gyrus
longitudinal fissure
What symptoms would you expect to see in a patient with damage to the basal nuclei? ANSWER: problems in rhythmic movements related to skeletal muscles visual problems inability to process thoughts in a rational way facial tics anger problems
problems in rhythmic movements related to skeletal muscles
Which of the following is not a function of cerebrospinal fluid? ANSWER: acts as a transport medium for nutrients provides buoyant support for the brain provides cushioning for delicate neural tissues provides ATP for impulse transmission acts as a transport medium for waste products
provides ATP for impulse transmission
Which of these is NOT a property of the limbic system? ANSWER: It regulates body temperature. It includes the hippocampus. It is central to our ability to experience emotions. It is important in learning and memory.
t regulates body temperature.
Damage to the corpora quadrigemina would interfere with ANSWER: visual and auditory reflex movements of the head and neck. control of breathing. regulation of body temperature. control of autonomic function. conscious control of skeletal muscles.
visual and auditory reflex movements of the head and neck.