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CNS-Brain Stem- Anatomy PMU 1st Year 2nd Semester

Question 1 of 30

1

The pons connects with the cerebellum through pedunculus cerebellaris medius:

Select one of the following:

  • True
  • False

Explanation

Question 2 of 30

1

The basilar part of the pons is made of fibers only.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 30

1

Within the pons tegmentum are located the nuclei of the cranial nerves IX, X and XI.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 30

1

The roots of XII cranial nerve appear in the retroolivary sulcus.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 30

1

The midbrain is delineated from the diencephalon by the optic tracts.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 30

1

The nuclei of the caudal colliculus are relay station in the auditory pathway.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 30

1

CN VI (Abducens) appears in the interpenduncular fossa.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 30

1

The brainstem contains reflex centers for respiration and cardiovascual control

Select one of the following:

  • True
  • False

Explanation

Question 9 of 30

1

Phylogenically new parts of the brain stem are located on its ventral aspect

Select one of the following:

  • True
  • False

Explanation

Question 10 of 30

1

Substantia nigra is part of the pyramid system

Select one of the following:

  • True
  • False

Explanation

Question 11 of 30

1

The following structures are found in the opened part of the dorsal surface of medulla oblongata:

Select one of the following:

  • Pyramidal decussation

  • Olive

  • Vagal trigone

  • Facial colliculus

  • Gracile tubercle

Explanation

Question 12 of 30

1

Breathing centers accessory to the medulla oblongata are located in which brain area?

Select one of the following:

  • Cerebellum

  • Pons

  • Hypothalamus

  • Midbrain

Explanation

Question 13 of 30

1

The brain stem includes all of the following except

Select one of the following:

  • Medulla

  • Pons

  • Midbrain

  • Cerebral cortex

Explanation

Question 14 of 30

1

The area that coordinates visual reflexes is the:

Select one of the following:

  • Cerebellum

  • Superior Colliculus

  • Inferior Colliculus

  • Cerebral peduncles

Explanation

Question 15 of 30

1

How many of the pairs of cranial nerves originate from the brain stem?

Select one of the following:

  • Ten

  • All of them arise from the brain stem

  • Two

  • None of them arise from the brain stem

  • One

Explanation

Question 16 of 30

1

All of the following statements concerning the vestibulocerebellar pathway are correct except it:

Select one of the following:

  • Plays a role in the initiation, planning and the timing of voluntary motor activities.

  • Project via the medial longitudinal fasciculus (MLF)

  • Receives input from the cristae ampullares

  • Receives input from the macular of the utricle and saccule

  • Includes the flocculonodular lobe

Explanation

Question 17 of 30

1

All of the following statements concerning the red nucleus are correct except:

Select one of the following:

  • It influences the cerebellum via the inferior olivary nucleus.

  • Its primary effect is on truncal and proximal muscles.

  • It receives bilateral input from the motor and premotor cortext

  • it receives contralateral input from the nucleus interpositus.

  • It receives modest input from the contralateral dentate nucleus

Explanation

Question 18 of 30

1

Which of the following IS NOT a medullary vital center

Select one of the following:

  • Blood pressure

  • Cardiac

  • Vasomotor

  • Respiratory

Explanation

Question 19 of 30

1

Three nuclei within the medulla oblongata function as vital centers for controlling heart rate, blood pressure and ............................................

Select one of the following:

  • Rate and depth of breathing

  • Emotions

  • Body temperature

  • Water and electrolyte balance

Explanation

Question 20 of 30

1

The centres that control vital visceral activities are located within the .............. area of the brain.

Select one of the following:

  • Hypothalamus

  • Cerebral cortex

  • Pons

  • Medulla oblongata

Explanation

Question 21 of 30

1

In the floor of the fourth ventricle

Select one or more of the following:

  • The trigonum vagi is at the inferior angle next to the midline.

  • The facial colliculus is next to the midline in its upper half.

  • The vestibular area is adjacent to the lateral angle.

  • The trigonum hypoglossi is lateral to the trigonum vagi

  • The abducent nucleus lies deep to the facial colliculus

Explanation

Question 22 of 30

1

The following structures are found in the midbrain

Select one or more of the following:

  • The substantia nigra

  • The superior colliculi (Corpora Quadrigemina)

  • The motor nucleus of the trigeminal nerve

  • The nucleus of the abducent nerve

  • The decussation of the superior cerebellar peduncles.

Explanation

Question 23 of 30

1

The following nuclei are found in the pons:

Select one or more of the following:

  • The facial nucleus

  • The oculomotor nucleus

  • The descending or spinal nucleus of the trigeminal nerve

  • The abducent nucleus

  • The inferior salivary nucleus

Explanation

Question 24 of 30

1

In the medulla oblongata:

Select one or more of the following:

  • The olive lies between the pyramid and the inferior cerebellar peduncle

  • The vagus nerve emerges between the pyramid and the olive

  • The decussation of the pyramids in found in the posterior median sulcus.

  • The gracile tubercle lies posteriorly next to the midline

  • The spinal nucleus of the trigeminal nerve lies dorsilaterally

Explanation

Question 25 of 30

1

The medial lemniscus

Select one or more of the following:

  • Is formed by fibres which come mainly from the gracile and cuneate nuclei of the same side

  • Is part of the proprioceptive pathway from the periphery to the cerebral cortex

  • Forms a bundle of fibres lying anteroposteriorly in the pons

  • Forms a bundle of fibres lying anteroposteriorly in the medulla oblongata

  • Ends in the lateral nucleus of the thalamus.

Explanation

Question 26 of 30

1

The pyramid of the hind brain

Select one or more of the following:

  • Is medial to the roots of the hypoglossal nerve.

  • Is medial to the olive

  • Consists mainly of descending fibres

  • Consists of fibres all of which decussate in the medulla oblongata.

  • Consists of fibres all of whose cells bodies are in the precentral gyrus of the cerebral hemispheres

Explanation

Question 27 of 30

1

The pons

Select one or more of the following:

  • Contain nuclei whose neurones have fibres which go to the cerebellum.

  • Contains nuclei which connect the cerebral cortex with the cerebellar cortex

  • Lies on the basilar part of the occipital bone.

  • Is anterior to the basilar artery.

  • Is superior to the emerging facial nerve.

Explanation

Question 28 of 30

1

The following are found in the midbrain

Select one or more of the following:

  • The medial lemniscus

  • The frontopnontine fibres

  • The lateral lemniscus

  • The red nucleus

  • The medial geniculate body

Explanation

Question 29 of 30

1

The Pons:

Select one or more of the following:

  • Has the trigeminal nerve emerging from its superior border

  • Contains in its anterior (basilar) part the nuclei pontis

  • Contains in its anterior part the pyramidal (corticospinal) tracts

  • Is connected to the cerebellum by the superior cerebellar peduncle.

  • Contains the upward continuation of the medial lemniscus

Explanation

Question 30 of 30

1

The following are found in the midbrain:

Select one or more of the following:

  • The nucleus of the oculomotor nerve

  • The tectospinal tract

  • The medial longitudinal bundle

  • The superior salivary nucleus

  • The nucleus of the tractus solitarius

Explanation

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