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Ascending Sensory Tracts Quiz

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Questions and Answers

What is the origin of the first-order afferent neuron in the spinocerebellar tracts?

Cerebellar nuclei
Dorsal root ganglion (correct)
Ventral horn of the spinal cord
Cerebral cortex

What is the pathway of the anterior spinocerebellar tract?

It remains ipsilateral throughout its course and terminates in the cerebral cortex.
It remains ipsilateral and terminates in the cerebellum.
It decussates in the spinal cord, recrosses, and terminates in the ipsilateral cerebellum. (correct)
It decussates in the midbrain and terminates in the contralateral cerebellum.

Which of the following terms refers to the outermost layer of the brain?

Ganglion
Cerebrum
Cortex (correct)
Cerebellum

What does the term 'decussation' mean?

The crossing-over of nerve fibers (A) Signup and view all the answers

Which of the following terms refers to a group of nerve cell bodies in the peripheral nervous system?

Ganglion (B) Signup and view all the answers

What does the term 'ipsilateral' mean?

Same side (C) Signup and view all the answers

Which of the following terms refers to a wedge-shaped structure?

Cuneate (D) Signup and view all the answers

What does the term 'contralateral' mean?

Opposite side (C) Signup and view all the answers

Which of the following terms refers to a bundle of nerve fibers?

Fasciculus (C) Signup and view all the answers

What does the term 'lamina' refer to in the context of the nervous system?

A layer or sheet of tissue (C) Signup and view all the answers

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