New study could change assumptions about helmet safety nyit
b). The reticular activating system is a network of neurons located in the brain stem. The mechanism of concussion is often defined as dysfunction of the RAS as it is believed to control consciousness.Athletes tend to neglect reporting symptoms for various reasons, e.g., not thinking the injury is serious enough to need medical attention , a desire to remain in competition , and/or lack of awareness of what to consider as a symptom [].
While the relationship between brain structure and function is still debated, the Brodmann’s map of cytoarchitectonics is widely used for that purpose. Inthe first deviatoric principal stress at the point when the brain rebounds, i.e., contrecoup injury, is superimposed with the Brodmann’s map. It can be seen that region 18 has the highest area covered by the stress maximum.
The ventricles are where CSF is produced and can serve as an important cushion for brain parenchyma when encountering impacts. In, it is shown that certain areas of the ventricles are affected, particularly the anterior horn of the left ventricle and the posterior horn of the right ventricle. These impacts are likely to cause injury to the corpus callosum which contains large numbers of neuronal axons running along these ventricular structures.
Several limitations can be considered. The results presented here are from a single case study. However, in professional boxing, this is a very typical punch that often leads to a knockout. Hence, the same study applies to many other reported cases. Moreover, the boxer suffered several other punches before the final knockout punch; these prior punches are not considered in this study. A major limitation of this model is the omission of the cerebral vasculature.
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