PATHOLOGY MCQ
NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Receptors ____
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react to a specific stimulus by sending impulses
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carry motor impulses from the central nervous system
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are connections with different nerves
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are directed towards the peripheral nervous system
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Explanation:
Detailed explanation-1: -Sensory receptors. Sensory receptors have specialized functions, and respond to environmental changes in stimuli. Usually, activation of these receptors by stimuli causes graded potentials triggering nerve impulses along the afferent PNS fibers reaching the CNS.
Detailed explanation-2: -A tonic receptor is a sensory receptor that adapts slowly to a stimulus, while a phasic receptor is a sensory receptor that adapts rapidly to a stimulus.
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