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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Transcribed Image Text:Explain the physiology of ascending pathways by placing each word or phrase into the blanks to complete the sentences.
posterior horn
tactile corpuscles
spinoreticular tract
primary somatosensory
anterior horn
spinothalamic tract
contralateral
ipsilateral
prior to decussation
A feather is rubbed over a section of skin on the palm of the hand, eliciting an
action potential that was generated from neurons associated with
Action potentials traveling in the posterior root reach the synapse with second
order neurons located in the
of the spinal cord.
The transfer of electrical signals between first and second order neurons occurs
Second order neurons ascend the spinal cord in the
Arriving on the
transferred to third order neurons.
side of the thalamus, action potentials are
Third order neurons arrive in the
comprehension occurs.
Reset
cortex, where conscious
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