Chapman and Autonomics Flashcards
What is the facilitated segment?
constatn afferent barrage by injured somatic or visceral structures that leads to segmental excitation
What is facilitation?
Maintenance of a pool of neurons in a state of subthreshold excitation, due to sustained increase in afferent input, **aberrant patterns of afferent input, changes w/n participating neurons, or neuron chemical environment
Allostasis?
response to stress to regain homeostasis
What does long term spinal facilitation produce?
allostasis overload resulting in hyperalgesia
Example of somatosomatic reflex
Withdrawal response and myotatic response
Viscerovisceral reflex?
gastrocolic,
Somatovisceral reflex?
Somatocardiac, somatogastric, somatoadrenal
sympathetic for head and neck
T1-5
Sympathetic and PSNS for upper GI
- T5-10
- OA AA vagus
SNS and PSNS for SI and ascending colon?
- T9-11
- OA AA Vagus
SNS and PSNS input for Ascending and transverse colon?
- T10-L2
- OA AA Vagus
SNS and PSNS input for descending and sigmoid colon and the rectum?
- T12-L2
- S2-4
SNS and PSNS input for extremities?
- T2-7 UE
- T11-L2 LE
- None for PSNS
SNS and PSNS input for heart?
- T1-6
- OA AA Vagus
SNS and PSNS input for adrenals?
- T5-10
- OA AA Vagus