Tag Info

New answers tagged

4

As far as I know, adaptation of peripheral receptors, including pain receptors, is transient (Giniatullin & Nistri, 2013) Instead, my educated guess is that the increase in subjective pain threshold plays an important role. Pain thresholds differ between the sexes (Chesterton et al., 2003), and depend on disease and physical status (Kosak et al., ...


4

Short answer Sciatic nerve pain cannot be caused by a full colon. background The sciatic nerve runs at the back of the pelvis down the the leg. The sciatic nerve exits the spine from the lumbar spine to S3 in the sacrum (Fig. 1). Fig.1. Left: sciatic nerve overview. Right: Sacral plexus. Source: Manchester Bedford Clinic Hence the sciatic nerve does ...


1

Firstly you have to take into consideration that nociceptors do not adapt to stimulus. This means that a nociceptor will not only fire at the beginning of the stimulus, as seen in mechanoreceptors that have phasic responses, but will fire as long as the stimulus lasts. This type of response is called tonic response (see figure). Figure A shows the tonic ...


1

Pain receptors, more precisely pain signal propagation, can be inhibited in several ways. One is, for example, fine touch receptors (mechanoreceptor in illustration) inhibit propagation of pain signal in spinal cord (a lot of pain processing happens in spinal cord): That is why humans often rub skin around or nearby injury, whether it is in joints or ...



Top 50 recent answers are included