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The somatosensory system, or somatic sensory system is a subset of the sensory nervous system. It has two subdivisions, one for the detection of mechanosensory information related to touch, and the other for the nociception detection of pain and temperature. [ 1 ]
Nociceptive pain may also be classed according to the site of origin and divided into "visceral", "deep somatic" and "superficial somatic" pain. Visceral structures (e.g., the heart, liver and intestines) are highly sensitive to stretch, ischemia and inflammation , but relatively insensitive to other stimuli that normally evoke pain in other ...
Some non-neuropathic chronic pain conditions have been shown to decrease tactile acuity, the ability to precisely detect touch. [5] There is a difference between different chronic pain conditions and how they affect tactile acuity deficits. One of the conditions with the most profound deficits in tactile acuity is arthritis.
Bone pain belongs to the class of deep somatic pain, often experienced as a dull pain that cannot be localized accurately by the patient. This is in contrast with the pain which is mediated by superficial receptors in, e.g., the skin. Bone pain can have several possible causes ranging from extensive physical stress to serious diseases such as ...
In somatic disorder, there is a negative connection between elevated pain scores and 5-hydroxy indol acetic acid (5-HIAA) and tryptophan levels. [26] It has been suggested that proinflammatory processes may have a role in somatic symptom disorder, such as an increase of non-specific somatic symptoms and sensitivity to painful stimuli. [28]
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 ...
Deep pain at the back of the hip. Pain near the rear of your hip could be a sign of sciatica, a ligament injury, or one of the numerous small muscles on the back outer portion of your hip socket ...
The somatic nervous system (SNS), also known as voluntary nervous system, is a part of the peripheral nervous system (PNS) that links brain and spinal cord to skeletal muscles under conscious control, as well as to sensory receptors in the skin. [1] [2] The other part complementary to the somatic nervous system is the autonomic nervous system ...