The Arkansas Railroad Museum preserves the last steam-powered locomotive built in Arkansas and includes various artifacts of Arkansasâs railroad heritage. The Pine Bluff/Jefferson County Historical Museum opened in 1980 in the restored 1907 Union Pacific train depot.
Neuromuscular transmission defects. Only myasthenia gravis will be discussed further. This disease is characterized by abnormal fatigue with exercise. Myasthenia gravis commonly affects young woman and has a predilection for ocular, facial, masticator and proximal upper extremity muscles. Typically the patients recover to some degree after rest.
Parkinson disease. The pathophysiology of bowel dysfunction in PD is characterized by dystonia of striated muscles of the pelvic floor and external anal sphincter. Colonic transit time is prolonged as a consequence of loss of dopamine within the CNS and enteric nervous system.arkinson disease. The pathophysiology of bowel dysfunction in PD is characterized by dystonia of striated muscles of the pelvic floor and external anal sphincter. Colonic transit time is prolonged as a consequence of loss of dopamine within the CNS and enteric nervous system.