Autonomics and Chapman Points Flashcards
where do the mechanoreceptors go through?
layer 3 and 4
where do the fast pain fibers (A-delta) go through?
layers 1 and 5
where do the small slow C fibers go through?
layer 2
what part of the spinal cord gray matter do the afferents from the body synapse?
the upper layers (layer 1-6)
where are the interneurons and the motorneuron cell bodies found?
in the lower layers of the spinal cord gray matter
interneurons receive inputs from where?
both visceral and somatic afferents
the visceral afferents activate what?
both the sympathetic and somatic outflows
how can a visceral issue create a joint dysfunction?
because of its activation of a somatic pathway
what is the facilitated segment concept?
constant afferent barrage by injured somatic or visceral structures would lead to segmental excitation
what is sensitization?
the process of increasing response of a neural pathway with repetitive stimulation
what is habituation?
the process of decreasing response of a neural pathway with a continuous stimulation
what is facilitation?
maintenance of a pool of neurons in a state of subthreshold excitation (so less afferent stimulation is required to trigger the discharge of impulses)
what could cause facilitation?
aberrant patterns of afferent input
what is allostasis?
the response to stress in attempt to regain homeostasis
what are two examples of a somatosomatic reflex?
withdrawl response and the myotatic response
