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Visceral pain is pain that results from the activation of nociceptors of the thoracic, pelvic, or abdominal viscera (organs). Visceral structures are highly sensitive to distension (stretch), ischemia and inflammation, but relatively insensitive to other stimuli that normally evoke pain such as cutting or burning.
Functional somatic syndrome (FSS) is any of a group of chronic diagnoses with no identifiable organic cause.This term was coined by Hemanth Samkumar. [citation needed] It encompasses disorders such as fibromyalgia, chronic widespread pain, temporomandibular disorder, irritable bowel syndrome, [1] lower back pain, tension headache, atypical face pain, non-cardiac chest pain, insomnia ...
Somatic symptom disorder is frequently associated with functional pain syndromes like fibromyalgia and irritable bowel syndrome (IBS). [11] Somatic symptom disorder typically leads to poor functioning, interpersonal issues, unemployment or problems at work, and financial strain as a result of excessive healthcare visits. [9]
In the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders the older term somatoform (DSM-IV) has been replaced by somatic symptom disorder, which is a disorder characterised by persistent somatic (physical) symptoms, and associated psychological problems to the degree that it interferes with daily functioning and causes ...
Functional weakness is weakness of an arm or leg without evidence of damage or a disease of the nervous system. Patients with functional weakness experience symptoms of limb weakness which can be disabling and frightening such as problems walking or a 'heaviness' down one side, dropping things or a feeling that a limb just doesn't feel normal or 'part of them'.
Autonomic nervous system, showing splanchnic nerves in middle, and the vagus nerve as "X" in blue. The heart and organs below in list to right are regarded as viscera. The autonomic nervous system has been classically divided into the sympathetic nervous system and parasympathetic nervous system only (i.e., exclusively motor).
Another medical or mental disorder does not better explain the symptom or deficit. The symptom or deficit results in clinically significant distress or impairment in social, occupational, or other vital areas of functioning or warrants medical evaluation. [23] The presence of symptoms defines an acute episode of functional neurologic disorder ...
In the abdomen, general visceral afferent fibers usually accompany sympathetic efferent fibers. This means that a signal traveling in an afferent fiber will begin at sensory receptors in the afferent fiber's target organ, travel up to the ganglion where the sympathetic efferent fiber synapses, continue back along a splanchnic nerve from the ganglion into the sympathetic trunk, move into a ...