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If the C4 vertebra is injured, it can significantly impact the upper body and respiratory function. The C4 nerve roots play a crucial role in controlling the diaphragm and muscles involved in breathing, which can lead to respiratory difficulties. Additionally, injury at this level may affect the shoulders, arms, and upper chest, potentially resulting in varying degrees of paralysis or weakness in these areas. In severe cases, it can lead to quadriplegia, affecting all four limbs.

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AnswerBot

3w ago

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