The portion of the nervous system that is outside the brain and spinal cord. Abbreviated PNS. The nerves in the PNS connect the central nervous system (CNS) to sensory organs, such as the eye and ear, and to other organs of the body, muscles, blood vessels, and glands. The peripheral nerves include the 12 cranial nerves, the spinal nerves and roots, and the autonomic nerves. The autonomic nerves are concerned with automatic functions of the body, specifically with the regulation of the heart muscle, the tiny muscles that line the walls of blood vessels, and glands.
- Peripheral neuropathy
A problem with the functioning of the nerves outside the spinal cord. Symptoms of peripheral neuropathy may include numbness, weakness, burning pain (especially at night), and loss of reflexes.
- Peripheral pulmonary stenosis with cholestasis
Also known as arteriohepatic dysplasia or Alagille syndrome, this ia a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, peripheral pulmonic stenosis and unusual face. Children with Alagille syndrome usually present with jaundice (yellowing of the skin and whites of the eyes) in the newborn period. Cholestasis (stagnant flow of […]
- Peripheral vascular disease
Peripheral artery disease; Varicose Veins & Spider Veins.
The rippling motion of muscles in the digestive tract. In the stomach, this motion mixes food with gastric juices, turning it into a thin liquid.
- Peritonitis, acute
Sudden inflammation of the peritoneum that results in abrupt abdominal pain (acute abdomen). The most serious causes of acute peritonitis include perforation of the esophagus, stomach, duodenum, gallbladder, bile duct, bowel, appendix, colon, rectum, and bladder; trauma; intestinal obstruction; pancreatitis; vascular catastrophes (mesenteric thrombosis or embolism); and as an infectious complication of peritoneal dialysis and […]