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Multiple Choice Quiz
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1
A person can consciously inhibit a reflex because
A)the reflex occurs exclusively in the spinal cord
B)all body responses are under voluntary control
C)the impulse goes to the cerebral cortex
D)repolarization occurs in an upward direction
2
Anything that inflames the CNS will cause
A)pain
B)the blood-brain barrier to become more permeable
C)motor tremors
D)abnormal respirations
3
The cervical enlargement of the spinal cord contains
A)a viscous liquid
B)sensory neurons
C)motor neurons
D)muscle fibers
4
Which of these electrolytes plays and important role in the generation of nerve impulses?
A)calcium
B)potassium
C)phosphate
D)magnesium
5
The spinal cord ends at which vertebral level?
A)first lumbar
B)first sacral
C)twelfth thoracic
D)coccyx





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