Anatomy and Physiology of the Spinal Cord Quiz

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It originates mainly from the spinal cord
It is a motor nerve
It is responsible for pain, temperature, and crude touch sensation for the entire body.
It contains mainly sensory fibers. (correct)

It is unchanged in this level. (correct)
It is located posterior to the central canal.
It is responsible for proprioception.
It contains the synapse of the 1st and 2nd order neurons of the posterior column-medial lemniscal pathway.

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The level of decussation of pyramids is at the primary pyramidal decussation.
The central canal is located anterior to the primary pyramidal decussation.
The nucleus gracilis and nucleus cuneatus are located posterior to the central canal.
The synapse of the 1st and 2nd order neurons of the posterior column-medial lemniscal pathway occurs in this area.
The spinal nucleus of trigeminal nerve is located posterolateral to the central canal.
The trigeminal nerve is a mixed nerve containing mainly sensory fibers.
The spinal nucleus of trigeminal nerve is responsible for pain, temperature, and crude touch sensation for the head and neck area.
Other cranial nerves can relay some sensation to the spinal nucleus of trigeminal nerve.
The trigeminal nerve originates mainly from the pons.
The anterolateral white column remains unchanged in this level.