Anatomy: Accessory Nerve Roots and Pathway

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What structures does the accessory nerve consist of?

Cranial and spinal roots (correct)

Cranial root only

Spinal root only

Inferior ganglion root

From where does the spinal root of the accessory nerve arise?

Spinal cord (correct)

Medulla oblongata

The skull

Inferior cerebellar peduncle

Where do the two roots of the accessory nerve unite?

Jugular foramen (correct)

Medulla oblongata

Foramen magnum

Inferior ganglion

Which muscle is supplied by the cranial root of the accessory nerve?

Tensor palati Signup and view all the answers

What happens when there is an injury to the cranial part of the accessory nerve?

Deviation of uvula Signup and view all the answers

Where might the spinal part of the accessory nerve be injured due to its superficial position?

Posterior triangle of neck Signup and view all the answers

What is the consequence of an injury to the spinal part of the accessory nerve?

Shoulder drop Signup and view all the answers

Which ganglion does the cranial root of the accessory nerve join?

Inferior ganglion of vagus nerve Signup and view all the answers

What is the manifestation of an injury to the cranial part of the accessory nerve?

Deviation of the uvula toward the affected side Signup and view all the answers

Which muscles are supplied by the spinal root of the accessory nerve?

Trapezius muscle Signup and view all the answers

What is the function of the cranial root of the accessory nerve?

Supply muscles of pharynx and larynx Signup and view all the answers

Where does the spinal root of the accessory nerve enter the skull?

Foramen magnum Signup and view all the answers

Which muscle is not supplied by the cranial part of the accessory nerve?

Trapezius muscle Signup and view all the answers

What could be a consequence of an injury to the spinal part of the accessory nerve?

Shoulder drop Signup and view all the answers

Which area is prone to injury for the spinal part of the accessory nerve due to its superficial position?

Posterior triangle of neck Signup and view all the answers

What happens when there is a lesion affecting both roots of the accessory nerve?

Loss of shoulder abduction Signup and view all the answers

Anatomy: Accessory Nerve Roots and Pathway

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