20797027
Descripción
Test por Vincent Voltaire, actualizado hace más de 1 año
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Creado por Vincent Voltaire
hace alrededor de 4 años
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Pregunta 1
Pregunta
What happens to the perception of pressure if a stimulus is applied continuously to a specific spot on the skin?
Respuesta
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It fades in some receptive fields, but increases in others.
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It increases over time.
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It gradually fades.
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It fades only if the pressure is pulsatile.
Pregunta 2
Pregunta
What route is taken by nerve fibres that carry information about pressure from the surface of the skin on the left side of the body?
Respuesta
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past the spinal column and into the left temporal cortex
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along the spinal meninges and terminating in the left parietal somatosensory cortex
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through the spinal column and into the right frontal motor cortex
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through the spinal column and into the right parietal somatosensory cortex
Pregunta 3
Pregunta
Which pain pathway transmits information about an injury that has just occurred?
Respuesta
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fast
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geniculate
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slow
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medial
Pregunta 4
Pregunta
Which pathway for pain results in the experience of pain being less localized and longer lasting?
Respuesta
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endorphin
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generic
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slow
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thalamic
Pregunta 5
Pregunta
What structures do neural transmission in the slow pain pathway depend on?
Respuesta
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pulsating neural impulses called pain spindles
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opponent process receptors in the area surrounding the injury
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thicker, myelinated neurons called A-delta fibres
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thin, unmyelinated neurons called C fibres
Pregunta 6
Pregunta
Catelin has had a slow throbbing pain in her ankle since she twisted it while in-line skating last week. Where are these pain signals travelling?
Respuesta
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along thin, unmyelinated C fibres
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through periacqueductal gray neurons in the midbrain
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along ungated endorphin pathways in the hypothalamus
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through thick, myelinated A-delta fibres
Pregunta 7
Pregunta
Derek dropped a hammer on his foot and shrieked a split second later at the intense pain from a newly broken toe. How did the almost instantaneous pain signals travel?
Respuesta
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along thick, myelinated A-delta fibres
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through periacqueductal gray neurons in the midbrain
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along thin, unmyelinated C fibres
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through gated endorphin pathways in the hypothalamus
Pregunta 8
Pregunta
Which of the following accurately describes the role of culture for pain perception?
Respuesta
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Race has a larger impact on pain perception than does culture.
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Culture has no impact on pain perception or attitudes toward pain.
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Culture affects willingness to tolerate pain, but not the process of pain perception.
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Cultural rules dictate the amount of pain experienced, but only above a certain innate threshold.
Pregunta 9
Pregunta
Which theory can account for the fact that people suffering from pain sometimes report pain relief from a sugar pill placebo?
Respuesta
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cognitive control
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sensory adaptation
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perceptual constancy
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gate control
Pregunta 10
Pregunta
Which of the following helps to explain an athlete’s ability to play with a broken foot and not feel the pain until much later?
Respuesta
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overactive thyroid response
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hypnotic induction control theory of pain
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sympathetic nervous system control mechanisms
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gate-control theory of pain
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