Following administration of an opiate drug, "pain signals" are prevented from getting out of the spinal cord via two mechanisms. One inhibits spinal cord neurons that communicate with the parafascicular nucleus of the thalamus. What is the other way that pain signals are stopped? dendro-dendritic synapses that enhance IPSI's in somatosensory neurons. the disinhibition of long axons that start in the spinal cord and influence free nerve endings directly. feedback loop to the periaquedictal grey of the midbrain, which enhances neural activity in that area. axo-axonic synapses that prevents somatosensory neurons from releasing neurotransmitter.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Following administration of an opiate drug, "pain signals" are prevented from getting out of the
spinal cord via two mechanisms. One inhibits spinal cord neurons that communicate with the
parafascicular nucleus of the thalamus. What is the other way that pain signals are stopped?
dendro-dendritic synapses that enhance IPSI's in somatosensory neurons.
the disinhibition of long axons that start in the spinal cord and influence free nerve endings directly.
O a feedback loop to the periaquedictal grey of the midbrain, which enhances neural activity in that area.
axo-axonic synapses that prevents somatosensory neurons from releasing neurotransmitter.
Transcribed Image Text:Following administration of an opiate drug, "pain signals" are prevented from getting out of the spinal cord via two mechanisms. One inhibits spinal cord neurons that communicate with the parafascicular nucleus of the thalamus. What is the other way that pain signals are stopped? dendro-dendritic synapses that enhance IPSI's in somatosensory neurons. the disinhibition of long axons that start in the spinal cord and influence free nerve endings directly. O a feedback loop to the periaquedictal grey of the midbrain, which enhances neural activity in that area. axo-axonic synapses that prevents somatosensory neurons from releasing neurotransmitter.
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