Agriculture. Over 100 farmers from across Southeast Arkansas recently converged at the McGehee Men's club to learn about the changes in this years Farm Bill. This is just one of the many programs that Desha County Extension provides to our Community. Photo: The Desha County Extension Staff offers non-formal educational opportunities including field days, production meetings, and one-on-one consultations.
Myasthenia gravis, a rare, chronic disorder that causes weakness and rapid muscle fatigue. Muscle weakness that is slowly getting worse requires a visit to a doctor. Sudden muscle weakness and loss of function in one area of the body can indicate a serious problem within the brain (such as a stroke or transient ischemic attack) or spinal cord or with a specific nerve in the body.
1 Because alpha motor neurons are the only way to stimulate extrafusal muscle fibers, the loss of these neurons causes a decrease in muscle tone. 2  Hyporeflexia. 3  The myotatic (stretch) reflex is weak or absent with lower motor neuron disorders, because the alpha motor neurons that cause muscle contraction are damaged. Fibrillation. 2  With further degeneration of the alpha motor neuron, only remnants of the axons near the muscle fibers remain. 3  These individual axon fibers can also generate spontaneous action potentials; however, these action potentials will only cause individual muscle fibers to contract.