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Referred pain, also called reflective pain, [1] is pain perceived at a location other than the site of the painful stimulus.An example is the case of angina pectoris brought on by a myocardial infarction (heart attack), where pain is often felt in the left side of neck, left shoulder, and back rather than in the thorax (chest), the site of the injury.
The pathway crosses over at the level of the spinal cord, rather than in the brainstem like the dorsal column-medial lemniscus pathway and lateral corticospinal tract. It is one of the three tracts which make up the anterolateral system : anterior and lateral spinothalamic tract, spinotectal tract , spinoreticular tract .
Another type of pain, known as neuropathic pain, is caused by a direct problem or disease that affects the nerves in the central nervous system. [11] The sensory pathways the WDR neurons can play a role in. A subset of this neuropathic pain, known as chronic neuropathic pain, is characterized by its long lasting and high pain intensity.
The first neuron in this pathway is referred to as the preganglionic or presynaptic neuron. Its cell body sits in the central nervous system and its axon usually extends to synapse with the dendrites of a postganglionic neuron somewhere else in the body. The axons of presynaptic parasympathetic neurons are usually long, extending from the CNS ...
The course of GVA fibers from organs in the pelvis, in general, depends on the organ's position relative to the pelvic pain line.An organ, or part of an organ, in the pelvis is said to be "above the pelvic pain line" if it is in contact with the peritoneum, except in the case of the large intestine, where the pelvic pain line is said to be located in the middle of the sigmoid colon. [6]
' pain receptor ') is a sensory neuron that responds to damaging or potentially damaging stimuli by sending "possible threat" signals [1] [2] [3] to the spinal cord and the brain. The brain creates the sensation of pain to direct attention to the body part, so the threat can be mitigated; this process is called nociception .
Neuropathic pain syndromes are caused by lesions or diseases of the parts of the nervous system that normally signal pain. [13] There are four main classes: peripheral focal and multifocal nerve lesions traumatic, ischemic or inflammatory; peripheral generalized polyneuropathies. toxic, metabolic, hereditary or inflammatory; CNS lesions
The tract transmits slow nociceptive/pain information (but thermal, and crude touch information as well) from the spinal cord to reticular formation which in turn relays the information to the thalamus via reticulothalamic fibers as well as to other parts of the brain (as opposed to the spinothalamic tract - the direct pathway of the ...