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group_4_presentation_3_-_concussions [2020/03/25 23:48]
baign [Second impact syndrome]
group_4_presentation_3_-_concussions [2020/03/26 02:11]
hunteh2
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 ====== Pathogenesis ====== ====== Pathogenesis ======
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 +**Figure 3: During injury, neurons release potassium out of the cell body and calcium ions rush into the cell causing metabolic dysfunction.** ​
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 Concussions occur with any type of external force to the head, these events cause the brain to accelerate and decelerate with either translational,​ rotational, and/or angular force. The injury can result through the initial movement of the skull, onto the frontal lobe being stuck inside of the skull (known as contusion). This then leads to the rebound injury to the occipital lobe which results in the stretching and tearing of neurons in the brain stem and throughout the brain. This is a form of deceleration injury in a linear manner. ​ Concussions occur with any type of external force to the head, these events cause the brain to accelerate and decelerate with either translational,​ rotational, and/or angular force. The injury can result through the initial movement of the skull, onto the frontal lobe being stuck inside of the skull (known as contusion). This then leads to the rebound injury to the occipital lobe which results in the stretching and tearing of neurons in the brain stem and throughout the brain. This is a form of deceleration injury in a linear manner. ​
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-**Figure ​3: Comparison between a healthy brain on the left and an advanced CTE brain on the right.** ​+**Figure ​4: Comparison between a healthy brain on the left and an advanced CTE brain on the right.** ​
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-**Figure ​4: Rowan Stringer** ​+**Figure ​5: Rowan Stringer** ​
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