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ACCESSORY NERVE (CN XI) SUPPLY

Neurology

ACCESSORY NERVE (CN XI) SUPPLY

CRANIAL COMPONENT - FORMS THE MOTOR PART OF THE VAGUS
1. Pharynx.
2. Larynx.
3. Soft palate.
4. Oesophagus.

SPINAL COMPONENT
1. Sternomastoid - fibres to the sternomastoid cross twice, hence control is ipsilateral. This means that the hemisphere that receives information from one side of the body also turns the head to face that side.
2. Trapezius.


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REFERENCES

1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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