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NU 673 MIDTERM EXAM
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COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) A+ GRADED
,This consists of aggregations of neuro- nal cell bodies. It rims the surfaces of the
cerebral hemispheres, forming the cerebral cortex
A. Gray matter
B. White matter
A. Gray matter
- Deep in the brain lie additional clusters of gray matter (Fig. 17-2). These include the
basal ganglia, which affect movement, and the thalamus and the hypothala- mus
structures in the diencephalon. The thalamus processes sensory impulses and relays
them to the cerebral cortex. The hypothalamus maintains homeostasis (Bickley)
- and regulates temperature, heart rate, and blood pressure. The hypothalamus affects
the endocrine system and governs emotional behaviors such as anger and sexual drive.
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Hormones secreted in the hypothalamus act directly on the pitu- itary gland. (Bickley)
Bickley, Lynn S. Bates' Guide to Physical Examination and History Taking, 12th Edition.
Wolters Kluwer Health, 20160620. VitalBook file.
This consists of neuronal axons that are coated with myelin. The myelin sheaths, which
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create the white color, allow nerve impulses to travel more rapidly.
A. Gray matter
B. White matter
B. White matter
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- The internal capsule is a white-matter structure where myelinated fibers converge from
all parts of the cerebral cortex and descend into the brainstem. The brainstem, which
connects the upper part of the brain with the spinal cord, has three sec- tions: the
midbrain, the pons, and the medulla. (Bickley)
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Bickley, Lynn S. Bates' Guide to Physical Examination and History Taking, 12th Edition.
Wolters Kluwer Health, 20160620. VitalBook file.
Consciousness relies on the interaction between intact cerebral hemispheres and a
structure in the diencephalon and upper brainstem
A. Reticular activating system
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B. Cerebellum
A. Reticular activating system
- Consciousness relies on the interaction between intact cerebral hemispheres and a
structure in the diencephalon and upper brainstem, the reticular activating (arousal)
system.
- The cerebellum, which lies at the base of the brain, coordinates all movement and
helps maintain the body upright in space. (Bickley)
Bickley, Lynn S. Bates' Guide to Physical Examination and History Taking, 12th Edition.
Wolters Kluwer Health, 20160620. VitalBook file.
,Determine how many segements of the ff
A. Cervical
B. Thoracic
C. Lumbar
D. Sacral
A. Cervical C1-C8
B. Thoracic T1-T12
C. Lumbar L1-L5
D. Sacral S1-S5
This regulates muscle movements and response to the sensations of touch and pain
A. Somatic
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B. Autonomic
A. Somatic
- The peripheral nervous system (PNS) consists of both CNs and periph- eral nerves
that project to the heart, visceral organs, skin, and limbs. It controls the somatic nervous
system, which regulates muscle move- ments and response to the sensations of touch
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and pain, and the autonomic nervous system that connects to internal organs and
gener- ates autonomic reflex responses. The autonomic nervous system consists of the
sympathetic nervous system, which "mobilizes organs and their functions during times
of stress and arousal, and the para- sympathetic nervous system, which conserves
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energy and resources during times of rest and relaxation."5 (Bickley)
Bickley, Lynn S. Bates' Guide to Physical Examination and History Taking, 12th Edition.
Wolters Kluwer Health, 20160620. VitalBook file.
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Determine the pairs of peripheral nerves
A. Cervical
B. Thoracic
C. Lumbar
D. Sacral
E. Coccygeal
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A. Cervical- 8
B. Thoracic- 12
C. Lumbar- 5
D. Sacral- 5
E. Coccygeal- 1
- The PNS includes spinal and peripheral nerves that carry impulses to and from the
cord. A total of 31 pairs of spinal nerves attach to the spinal cord: 8 cervical, 12 thoracic,
5 lumbar, 5 sacral, and 1 coccygeal. Each nerve has an anterior (ventral) root
containing motor fibers, and a posterior (dorsal) root containing sensory fibers. The
anterior and posterior roots merge to form a short spinal nerve, <5 mm long. Spinal
, nerve fibers commingle with similar fibers from other levels in plexuses outside the cord,
from which peripheral nerves emerge. Most peripheral nerves contain both sensory
(afferent) and motor (efferent) fibers. (Bickley)
Bickley, Lynn S. Bates' Guide to Physical Examination and History Taking, 12th Edition.
Wolters Kluwer Health, 20160620. VitalBook file.
Determine the Cranial Nerve:
Oflactory: sense of smell
A. I
B. Ii
C. III
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D. IV
E. V
F. Vi
G. VII
H. VIIi
I. IX
J. X
K. Xi
L. XIIlo
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XII Hypoglossal motor tongue
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Determine the Cranial Nerve:
Optic: vision
A. II
B. I
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C. III
D. IV
E. VI
F. V
G. VIII
H. VII
I. IX
J. XI
K. X
L. XII