Autonomics And Chapmans Points Flashcards
A- Delta fibers
Fast pain fibers (acute pain)
Layers 1, 5
Myelinated
Capcasin ——I slow C fibers
Small C Fibers
Slow Pain fibers (chronic pain)
Layer 2
Unmyelinated
Cortical Influence
Is a long term excitation or inhibition of interneurons
Like yoga
Spinal levels that have over excitable reflexes
Show injury or disease of something being innervates at this level
Senseitization
Continued stimulus gets to a peak output and stays level
Like a burn
Habituation
Stimulus continues and decreased output at the end eventually
Where are there no nociceptors
What do nociceptors release
In brain and hyaline cartilage
Peptides
What do peptides cause from pain
Release of bradykinins, PGE, Histamines
= lower threshold for nociceptors
= higher reflex output
What do you need for short term sensitization
1-2 sec of afferent input
Excitability last for 90-120secs
Long term sensitization
Input fo several mins
Excitability lasts from several hours
Fixation
15-40mins f afferent input
Last for days to weeks
Permanent Excitability
2-3 weeks afferent input Last forever (maybe inhibitory interneurons dies)
Facilitation
Maintainers of the pool of neurons in a state of sub threshold (right on it not over it)
= left afferent stimulation is required to trigger impulses
Aberrant pattern
When some part of an area in body is really excited and some have no and there is a weird signal that doesn’t make sense
= injury
= facilitation
Autoimmune diseases
Can also cause facilitation
EX of sensitization
Stimulate n for a while causing a certain amount of
= stuffy neurons : stimulate so that nose can start run fro a while
Allostasis
Allostasis overload
Stress response that causes regain in homeostasis
Long-term neural effect of segmented facilitation
Sympathetic Head and Neck + upper esophagus
T1-T5
Sympathetic Upper GI + upper esophagus
T5-T10
SI + A.C.
Sympathetic
T9-T11
A.C. + T.C.
Sympathetic
T10-L2
D.C. and S.C. and Rectum
Sympathetic
T12-L2
Parasympathetic Upper GI + upper esophagus
OA, AA, Vagus
SI + A.C parasympathetic
OA, AA, Vagus