Abdominal Pain Flashcards
location of visceral pain receptors of GI tract
located on serosal surface, in the mesentery, within intestinal muscle and mucosa of hollow organ
location of somato-parietal pain receptors
pariteal peritoneum
muscle
skin
referred pain sensation
well localised but felt in distant areas of the same cutaneous dermatome as the effected organ
what do visceral pain receptors respond to
mechanical and chemical stimuli - stretching, tension, ischaemia
sensation of visceral pain
dull
poorly localised - perceived in the middle
this is due to them being C-fibres
broad pain areas of visceral pain
foregut felt in middle
midgut felt in suprapubic
hindgut felt in lower abdomen
what do somato-parietal pain receptors respond to
inflammation
stretching or tearing of parietal peritoneum
transmission of somato-parietal pain receptors
via mialinated A-delta to specific dorsal root ganglia
sensation of somato-parietal pain
sharp
intense
localised sensation
movement may aggravate pain
characteristics of pain
associated symptoms
relieving factors
aggravating factors
features of acute pain
sudden, sharp, intense, localised
self limiting
associated with physiological changes - tachycardia, temerpature
features of chronic pain
gnawing, aching, diffuse
no clear beginning or end
varies in intensity
associated with physiological and social difficulties
