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Brain Stem Anatomy and Functions

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Questions and Answers

What is the location of the ventral cochlear nucleus?

On the posterior aspect of the inferior cerebellar peduncle
On the anterior aspect of the inferior cerebellar peduncle (correct)
In the medial vestibular nucleus
On the lateral side of the fourth ventricle

Which tract is located posterior to the pyramid?

Pyramid
Medial lemniscus (correct)
Tectospinal tract
Medial longitudinal pundle

Which nucleus is situated on the anteromedial aspect of the inferior cerebellar peduncle?

Spinal tract of the trigeminal nerve
Inferior vestibular nucleus
Spinal nucleus of the trigeminal nerve (correct)
Inferior olivary nucleus

What is the function of the corticospinal fibers?

They descend to the spinal cord (D) Signup and view all the answers

Where is the inferior cerebellar peduncle situated?

In the posterolateral corner of the section on the lateral side of the fourth ventricle (A) Signup and view all the answers

Which of the following nuclei is not part of the vestibular nuclear complex?

Spinal nucleus of the trigeminal nerve (D) Signup and view all the answers

What is the location of the dorsal cochlear nucleus?

On the posterior aspect of the inferior cerebellar peduncle (B) Signup and view all the answers

What is the function of the corticonuclear fibers?

They are distributed to the motor nuclei of the cranial nerves (C) Signup and view all the answers

Which tract is situated near the surface in the interval between the inferior olivary nucleus and the spinal nucleus of the trigeminal nerve?

Anterior spinocerebellar tract (C) Signup and view all the answers

How many cochlear nuclei are present?

Two (A) Signup and view all the answers

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