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John has suffered a crushing injury to his chest and is unable to breathe properly. This is
primarily due to damage to the
O transverse cervical nerve
accessory nerve
O phrenic nerve
sciatic nerve
O greater auricular nerve

Sagot :

GinnyAnsweridn

Final answer:

The phrenic nerve plays a vital role in controlling ventilation by innervating the diaphragm. Damage to this nerve can lead to breathing difficulties, as seen in cases like John's chest injury.


Explanation:

The phrenic nerve is primarily responsible for controlling the muscle contractions that drive ventilation by innervating the diaphragm. Damage to the phrenic nerve can lead to difficulties in breathing, as seen in cases like John's chest injury.

The phrenic nerve is connected to the spinal cord at cervical levels 3 to 5 and plays a crucial role in the respiratory function. It allows for the contraction of the diaphragm, enabling the process of breathing to occur smoothly.

Understanding the role of the phrenic nerve in breathing mechanisms and its connection to the diaphragm is essential in comprehending respiratory physiology and potential complications resulting from nerve damage.


Learn more about Phrenic nerve and respiratory function here:

https://brainly.com/question/24233188


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