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PMU - 2nd/2t Semester Anatomy - CNS (Cerebellum)

PMU - 2nd/2t Semester Anatomy - CNS (Cerebellum)

Question 1 of 30

1

The cerebellum is located in the posterior cranial fossa:

Select one of the following:

  • True
  • False

Explanation

Question 2 of 30

1

The Purkinje cells are the only efferent neurons of cerebellar cortex

Select one of the following:

  • True
  • False

Explanation

Question 3 of 30

1

The cerebellar blood supply is through branches of basilar and vertebral arteries:

Select one of the following:

  • True
  • False

Explanation

Question 4 of 30

1

The cerebellum is a derivate of the rhombencephalon.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 30

1

The mossy fibers end on the purkinje cells.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 30

1

The cerebellum is a voluntary somatomotor center.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 30

1

Cerebellar disorders are associated with increased muscular tone.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 30

1

The cerebellar vermis contains archi-, paleo- and neocerebellar structures.

Select one of the following:

  • True
  • False

Explanation

Question 9 of 30

1

The golgi cells are excitatory cell in the cerebellar cortex.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 30

1

The cerebellum contains the greatest number of neurons in the brain.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 30

1

One of the following is NOT TRUE for the dentate nucleus

Select one of the following:

  • It is in the dorsal part of the pons

  • The dentorubral tract starts from it.

  • The dentothalamic tract starts from it.

  • It receives afferents from Purkinje cells.

  • It receives afferents from olivocerebellar tract

Explanation

Question 12 of 30

1

The inferior cerebellar peduncle contains all of the following afferent connections EXCEPT the

Select one of the following:

  • Cuneocerebellar tract

  • Ventral spinocerebellar tract

  • Dorsal spinocerebellar tract

  • Olivocerebellar tract

  • Trigeminocerebellar fibers

Explanation

Question 13 of 30

1

All of the following statements concerning the superior cerebellar peduncle are correct EXCEPT it

Select one of the following:

  • Connects the cerebellum to the midbrain

  • Is primarily an efferent bundle of fibers

  • Represents the major output from the cerebellum

  • Contains dentatothalamic fibers

  • Contains the juxtarestiform body

Explanation

Question 14 of 30

1

All of the following statements concerning the neocerebellar pathway are correct EXCEPT

Select one of the following:

  • The neocerebellar pathway influences the motor cortex via the ventral anterior thalamic nucleus

  • The dentatothalamic tract decussates in the midbrain

  • The corticopontocerebellar tract decussates in the base of the pons

  • The neocerebellum expresses itself via the corticospinal tract

  • The dentate nucleus is reciprocally connected with the inferior olivary nucleus

Explanation

Question 15 of 30

1

All of the following statements concerning the cerebellum are correct EXCEPT it

Select one of the following:

  • Contains four pairs of nuclei within its medullary body

  • Contains two pairs of cerebellar peduncles

  • Consists of a midline vermis and two lateral hemispheres

  • Is located infratentorially within the posterior fossa

  • Has a three-layered cortex

Explanation

Question 16 of 30

1

All of the following statements concerning the cerebellum are correct EXCEPT it

Select one of the following:

  • Projects to the red nucleus

  • Projects to the vesticular nuclei

  • Projects to the lateral ventral nucleus of the thalamus

  • Receives input from the superior olivary nucleus

  • Receives the olivocerebellar tract via the inferior cerebellar peduncle

Explanation

Question 17 of 30

1

All of the following statements concerning the cerebellum are correct EXCEPT it

Select one of the following:

  • Is derived from the alar plate

  • Develops from the rhombic lips

  • Is part of the metencephalon

  • Is part of the rhombencephalon

  • Is part of the brainstem

Explanation

Question 18 of 30

1

All of the following statements concerning the dentate nucleus are correct EXCEPT it

Select one of the following:

  • Receives input from climbing the mossy fibers

  • Receives inhibitory input from Purkinje cells

  • Gives rise to the superior cerebellar peduncle

  • Gives rise to the fascia dentata (dentate gyrus)

  • Projects to the ventral lateral nucleus of the thalamus

Explanation

Question 19 of 30

1

One of the following is NOT a part of neocerebellum:

Select one of the following:

  • Uvula

  • Lobulus simplex

  • Lobulus semilunaris superior

  • Lobulus biventer

  • Tonsil

Explanation

Question 20 of 30

1

The cerebellum:

Select one or more of the following:

  • Through the inferior cerebellar peduncle receives a large number of fibres which are associated with proprioception

  • Has connections with the frontal lobe through the superior cerebellar peduncle and thalamus

  • Has no grey matter other than that of the cerebellar cortex

  • Has a uniform structure throughout its cortex

  • Receives fibres from the olivary nucleus mainly of the same side.

Explanation

Question 21 of 30

1

The inferior cerebellar peduncles

Select one or more of the following:

  • Contain fibres most of which end in the cerebellar cortex

  • Form part of the lateral boundaries of the lower part of the fourth ventricle.

  • Contain fibres from the opposite olivary nucleus

  • Are medial to the glossopharyngeal nerves

  • Contain fibres from the vestibular nuclei of the same side.

Explanation

Question 22 of 30

1

The superior cerebellar peduncles

Select one or more of the following:

  • Contain the fibres of the posterior spinocerebellar tract

  • Contain fibres whose cell bodies are usually in the cerebellar cortex

  • Contain fibres which go to the red nucleus

  • Contain fibres which decussate in the midbrain

  • Contain fibres which go to the thalamus.

Explanation

Question 23 of 30

1

The following are efferents of the cerebellum:

Select one or more of the following:

  • Tractus cerebelloolivaris

  • Fibrae cerebelloreticularis

  • Tractus cerebellocochlearis

  • Tractus cerebellovestibularis

  • Tractus cerebellolenticularis

Explanation

Question 24 of 30

1

Cerebellar cortex has direct connections with

Select one or more of the following:

  • Vestibular nuclei

  • Forebrain cortex

  • Substantia nigra

  • Nucleus ambiguus

  • Red Nucleus

Explanation

Question 25 of 30

1

The pathway ensuring feedback in the cortico-cerebellar circuit are:

Select one or more of the following:

  • Tractus corticopontinus

  • Tractus pontocerebellaris

  • Fibae arcuatae

  • Tractus dentatoolivaris

  • Fibrae thalamocorticales

Explanation

Question 26 of 30

1

The afferent pathways to the cerebellum convey the following sensation:

Select one or more of the following:

  • General conscious sensation

  • Specific conscious sensation

  • General unconscious sensation

  • Specific unconscious sensation

  • A and D

Explanation

Question 27 of 30

1

Afferent pathways to cerebellum pass:

Select one or more of the following:

  • Only through the middle cerebellar peduncles

  • Only through the middle and inferior cerebellar peduncles

  • Through the superior cerebellar peduncles

  • Only through the inferior and superior cerebellar peduncles) .

  • Through the three peduncles

Explanation

Question 28 of 30

1

The neocerebellum includes

Select one or more of the following:

  • Uvula

  • Lobulus simplex

  • Lobulus semilunaris superior

  • Lobulus biventer

  • Lingula

Explanation

Question 29 of 30

1

Efferent pathways of the cerebellum reach

Select one or more of the following:

  • Directly the somatomotor cell of the spinal cord

  • Only nuclei of the extrapyramid system

  • Nuclei of the extrapyramid system and diencephalon

  • Thalamus

  • Nucleus vestibularis lateralis

Explanation

Question 30 of 30

1

Purkinje cells:

Select one or more of the following:

  • Are large pyramid cells

  • Are efferent cells of the cerebellar cortex

  • End by inhibitory synapses on the cerebellar nuclei

  • Their dendrites enter the molecular layer of the cerebellar cortex

  • Are GABA mediated

Explanation

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