Viscerosomatic/Chapman's Flashcards
What’s a reflex? myotactic reflex?
a. The common concept of the reflex is basically one of a relationship between an input stimulus to the body and an output action to either a muscle or a secretory organ
b. tonic contractions of the muscles in response to a stretching force due to stimulation of muscles receptors
What is the basis of activation of somatic muscle activity seen in visceral disturbances?
the overlap of visceral and somatic afferents
What is decompensation of homeostasis?
altered or impaired function thus becomes the basis for loss of health
What is habituation?
The process of decreasing response of a neural pathway with a continuous stimulation
Ubiquitous phenomenon
How are habituation and sensitization work together?
These two processes exist together to help maintain a homeostasis between over-reaction and under-reaction to a stimulus
What is pain?
conscious perception of nociception
What is the facilitated segment?
• Inflammation disrupts the balance between habituation and sensitization
Results in larger than normal motor outputs to the autonomics and somatic systems
This then is thought to set up the low-threshold spinal reflexes Korr and Denslow talked about:
THE FACILITATED SEGMENT
What is allostasis? central sensitization?
- long term neural effect of segmental facilitation
2. secondary hyperalgesia develops
What effects on the body can allostasis have?
CV – HTN, Increased risk of MI
Neuro – Depression, Anxiety, Memory loss, Decreased cognition
Immune – Immunosupression, autoimune disease
Somatosomatic
localized somatic stimuli producing patterns of reflex response in segmentally related somatic structures.
Somatovisceral
localized somatic stimulation producing patterns of reflex response in segmentally related visceral structures.
Viscerosomatic
localized visceral stimuli producing patterns of reflex response in segmentally related somatic structures.
Viscerovisceral
localized visceral stimuli producing patterns of reflex response in segmentally related visceral structures.
Withdrawal response
A somatosomatic reflex response that occurs when a noxious stimulus is applied to a somatic structure.
Complex withdrawal due to pain…
Myotatic response
The somatosomatic reflex response that occurs when a stretch receptor is stimulated and the stretched muscle receives the impulse to fire, while its antagonist receives an inhibitory message