Abdomen: Visceral referred pain

Question 1

Organic pain, pain from an organ varies from dull to severe and in refered pain it radiates to the dermatome level, which receives GVA fibers from the organs concerned.

Answer 1

Visceral referred pain

Question 2

Referred pain from a gastric ulcer is referred to the __A__ region b/c the stomach is supplied by pain afferents that reach__B_spinal sensory ganglia snd spinal cord segments via the _C___. The brain interprets the pain as though the irritation occurred in the skin of the epigastric region which is also supplied by _B__sensory ganglia and spinal cord segments.

Answer 2

A. Epigastric region

B. T7 and T8

C. Greater splanchnic n.

Question 3

Referred pain from the parietal peritoneum is somatic and is usually severe, so its site can be localized. The anatomical basis for this localization iof pain is that the parietal peritoneum is supplied by somatic sensory fibers through thoracic nerves, while visceral referred pain from an organ would be through greater or lesser splanchnic nerves. Inflamed parietal peritoneum is extremely sensitive to stretching. When digital pressure is applied to the anterolateral abdominal wall over the site of inflammation, the parietal peritoneum is stretched. When the fingers are suddenly removed, extreme localized pain is usually felt, known as rebound tenderness.

Answer 3

Referred pain from the parieal peritoneum info