Mastering A&P Chapter 12 Homework – Flashcards
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Which of the following is NOT associated with region B (the region the arrow is pointing to)?
A. post-central gyrus
B. conscious control of skeletal muscles
C. origin of corticospinal tracts
D. cell bodies of pyramidal neurons
answer
A. post-central gyrus
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Which of the following are motor areas of the cerebral cortex that lie in the posterior part of the frontal lobes and control voluntary movement?
A. primary motor cortex; premotor cortex; prefrontal cortex; gustatory cortex
B. primary somatosensory cortex; somatosensory association cortex; visual areas
C. Broca's area; posterior association area; auditory areas; visual areas
D. primary motor cortex; premotor cortex; Broca's area; frontal eye field
answer
D. primary motor cortex; premotor cortex; Broca's area; frontal eye field
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Patients who have lesions involving Broca's area __________.
A. do not understand written communications, but they can speak clearly and intelligibly
B. can understand language, but have difficulty speaking
C. can communicate through writing or sign language, but they cannot speak
D. do not understand language
answer
B. can understand language, but have difficulty speaking
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__________ is a progressive degenerative disease of the brain in which beta-amyloid peptide deposits and neurofibrillary tangles appear and that ultimately results in dementia (mental deterioration).
A. Huntington's disease
B. Alzheimer's disease
C. Parkinson's disease
D. mad cow disease
answer
B. Alzheimer's disease
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Which protective covering of the brain provides passageways for cerebrospinal fluid (CSF) to drain into the superior sagittal sinus?
A. membranous part of the dura mater
B. periosteal part of the dura mater
C. pia mater
D. arachnoid mater
answer
D. arachnoid mater
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Which of the following regions of the brain provides the precise timing and appropriate patterns of skeletal muscle contraction for the smooth, coordinated movements and agility that are needed for our daily living?
A. medulla oblongata
B. midbrain
C. pons
D. cerebellum
answer
D. cerebellum
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Which of the following is NOT a feature of the major spinal cord tracts (pathways)?
A. decussation
B. relay
C. memory
D. somatotopy
answer
C. memory
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What part of the spinal cord represents the collection of nerve roots at the inferior end of the vertebral canal?
A. cauda equina
B. lumbar enlargement
C. conus medullaris
D. cervical enlargement
answer
A. cauda equina
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After Joe has a stroke, his doctor asks Joe to touch his right pointer finger to his chin—but Joe is unable to move his right hand. However, when the doctor stimulates Joe's pointer finger with a painful stimulus, Joe's muscles quickly move his hand away from the stimulus. The doctor concludes that ______.
A. the stroke caused damage to Joe's frontal eye field which interfered with his effort to touch his chin
B. the stroke caused damage to Joe's right primary motor cortex
C. the stroke caused damage to Joe's right premotor cortex
D. based on the doctor's observations, none of the listed answers are correct conclusions
answer
D. based on the doctor's observations, none of the listed answers are correct conclusions
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Which of the following hypothalamic control centers would you predict is the LEAST important for survival?
A. suprachiasmatic nucleus
B. autonomic control center
C. temperature control center
D. thirst center
answer
A. suprachiasmatic nucleus
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Which of the following is a characteristic of a coma but is NOT a characteristic of sleep?
A. absence of brain waves ("flat EEG")
B. irreversible brain damage
C. continuously reduced mitochondrial activity in brain neurons
D. All of the listed responses are correct.
answer
C. continuously reduced mitochondrial activity in brain neurons
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What area does the arrow indicate?
answer
primary visual cortex
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Region A includes which of the following?
A. Primary somatosensory cortex
B. Primary motor cortex
C. Broca's area
D. Pre-frontal cortex
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D. Pre-frontal cortex
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The groove indicated by C is the..
A. transverse fissue
B. post-central gyrus
C. longitudinal fissure
D. central sulcus
answer
D. central sulcus
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The cortical regions indicated by E are involved in which functions?
A. The production and interpretation of language.
B. The storage of motor patterns for skilled movements of skeletal muscles.
C. The generation of emotional responses.
D. The control centers for homeostatic and endocrine functions.
answer
A. The production and interpretation of language.
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The letter A in the figure below represents which of the following structures?
A. thalamus
B. midbrain
C. hypothalamus
D. medulla
answer
A. thalamus
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Which part of the brain is the "executive suite" for all brain activity?
A. cerebellum
B. cerebral cortex
C. diencephalon
D. brain stem
answer
B. cerebral cortex
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Which parts of the brain constitute the "emotional brain" known as the limbic system?
A. diencephalic and brain stem structures
B. cerebral and diencephalic structures
C. cerebral and brain stem structures
D. diencephalic and mesencephalic structures
answer
B. cerebral and diencephalic structures
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1. Thalamus: Gateway to the cerebrum
2. Cerebellum: Motor command center
3. Brain stem: Survival center
4. Cerebrum: Executive suite
5. Hypothalamus: Visceral command center
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STUDY
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1. Thalamus: A major relay station for sensory information ascending to primary sensory areas of the cerebral cortex. Contains many specialized nuclei.
2. Prefrontal area: This brain area associates experiences necessary for the production of abstract ideas, judgment, and conscience.
3. Primary motor cortex: The axons from this area form the major pyramidal tracts.
4. Hypothalamus: This area is the main visceral control center of the body.
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STUDY
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1. Temporal lobe: Auditory area.
2. Parietal lobe: Primary sensory cortex.
3. Frontal lobe: Somatic motor cortex.
4. Frontal lobe: Motor speech area.
5. Frontal lobe: Premotor area.
6. Occipital lobe: Visual area.
7. Insula: Taste (gustatory) area.
8. Frontal lobe: Seat of intelligence, abstract reasoning.
answer
STUDY
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The frontal lobe is separated from the temporal lobe by the ________.
A. cranial fossa
B. lateral sulcus
C. longitudinal fissure
D. central sulcus
answer
B. lateral sulcus
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Broca's area ________.
A. corresponds to Brodmann's area 8
B. is considered a motor speech area
C. serves the recognition of complex objects
D. is usually found in the right hemisphere
answer
B. is considered a motor speech area
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The blood-brain barrier is effective against ________.
A. alcohol
B. anesthetics
C. nutrients such as glucose
D. metabolic waste such as urea
answer
D. metabolic waste such as urea
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All of the following are structures of the limbic system except the ________.
A. amygdaloid nucleus
B. cingulate gyrus
C. caudate nucleus
D. hippocampus
answer
C. caudate nucleus
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Tremor at rest, shuffling gait, stooped posture, and expressionless face are characteristics of ________.
A. Parkinson's disease
B. Huntington's disease
C. spinal cord disease
D. cerebellar disease
answer
A. Parkinson's disease
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The area of the cortex that is responsible for sensations of the full bladder and the feeling that your lungs will burst when you hold your breath too long is the ________.
A. vestibular cortex
B. gustatory cortex
C. olfactory cortex
D. visceral sensory area
answer
D. visceral sensory area
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A disturbance of posture, muscle tremors at rest, and uncontrolled muscle contraction are all symptoms of damage to the basal nuclei.
A. True
B. False
answer
A. True
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What CNS associated structure is illustrated in this figure?
A. choroid plexus
B. cerebral aquaduct
C. hypothalamus
D. proprioceptor
answer
A. choroid plexus
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Which meninx is a delicate connective tissue membrane that clings tightly to the brain like cellophane wrap following its every convolution?
A. periosteal layer of the dura mater
B. meningeal layer of the dura mater
C. pia mater
D. arachnoid mater
answer
C. pia mater
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The subarachnoid space lies between what two layers of meninges?
A. dura and epidura
B. arachnoid and epidura
C. arachnoid and dura
D. arachnoid and pia
answer
D. arachnoid and pia
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Which of the following is not a site where a tumor is likely to cause hydrocephalus?
A. fourth ventricle
B. cerebral aqueduct
C. pia mater
D. subarachnoid space
answer
C. pia mater
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In spina bifida, the cerebrum and part of the brain stem never develop.
A. True
B. False
answer
B. False
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Which of the following is the LEAST likely to be structurally affected if spina bifida develops in a fetus?
A. cauda equina
B. roots of sacral spinal nerves
C. sacrum
D. laminae of thoracic vertebrae
answer
D. laminae of thoracic vertebrae