Which layer of peritoneum is pain sensitive?
parietal peritoneum
The parietal peritoneum is sensitive to pain, pressure, touch, friction, cutting and temperature. It is innervated by the phrenic nerves and by the sensitive spinal (lower thoracic) viscero-somatic nerves.
Is visceral peritoneum pain sensitive?
The visceral peritoneum is sensitive to stretch, distension, tearing, but insensitive to touch, cutting, and burning sensations, and the resulting pain is dull aching and poorly localized.
Why parietal peritoneum is pain sensitive?
The myelinated fibers can penetrate the PP to reach the peritoneal cavity, where they lose their myelin sheath and are exposed to somatic and nociceptive stimuli. PP is sensitive to pain, pressure, touch, friction, cutting and temperature.
What’s the difference between parietal and visceral pain?
Parietal pain, in contrast to visceral pain, can be localized to the dermatome superficial to the site of the painful stimulus. As the underlying disease process evolves, the symptoms of visceral pain give way to the signs of parietal pain, causing tenderness and guarding.
How might a patient describe parietal pain?
Parietal Pain The patient will typically present in a guarded position with shallow breathing. This minimizes the stretch of the abdominal muscles and limits the downward movement of the diaphragm, which reduces pressure on the peritoneum and helps ease the pain. Characteristics: More severe pain. Easily localized.
What causes visceral pain?
Visceral pain occurs when there is damage or disruption to internal organs and tissues. Causes include the following: injuries to internal organs, such as the gallbladder, intestines, bladder, or kidneys. damage to the core muscles or abdominal wall.
How might a patient describe visceral pain?
Visceral pain originates in the organs of the chest, belly, or pelvis. You might describe it as a dull ache, but other ways to describe it include: Gnawing. Twisting. Colicky.
What causes parietal pain in abdomen?
Parietal Pain When the peritoneal lining is irritated, the sharp, localized pain makes breathing difficult. The perineum is the membrane that lines the abdomen, supporting and protecting the organs. It has a large number of nerve fibers, so the resulting pain is keen.
What causes parietal pain?
Parietal pain arises from direct noxious (usually inflammation) stimu- lation of the contiguous parietal peritoneum (e.g., right lower quad- rant at the McBurney point, appendicitis) or the diaphragm (splenic rupture, subdiaphragmatic abscess).