Peripheral nerve injury of the upper extremity commonly occurs in patients who participate in recreational (e.g., sports) and occupational activities. Nerve injury should be considered when a patient experiences pain, weakness, or paresthesias in the absence of a known bone, soft tissue, or vascular injury.
Brain injury occurs when the tissues of the brain suffer an acute injury that results in temporary, chronic, or permanent damage and/or dysfunction. The brain is a very sensitive organ subject to injury from a variety of insults. Some of the major causes of brain injury include trauma, lack of oxygen (hypoxic/anoxic injury), lack of blood flow (ischemia), infection, and metabolic disorders.
Confidence votes 84.8K. Anoxic decomposition is a biological process in which a certain group of microorganisms use chemically combined oxygen, such as that found in nitrite and nitrate.The organic matter they consume supports their life functions and nitrogen gas, carbon dioxide, stable solids and more organisms are produced in the process.   Anoxic brain injury is the result of a major lack of oxygen to the brain. When the brain doesn't receive proper amounts of glucose and oxygen, nerves in the cortex â¦ where cells originate are damaged. It takes about five minutes for lack of oxygen to permanently damage the brain.