PMU - 2nd/2t Semester Anatomy - CNS (Brain Stem)

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MCQ questions upload - 2nd semester/2nd test - PMU
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Resumen del Recurso

Pregunta 1

Pregunta
The pons connects with the cerebellum through pedunculus cerebellaris medius:
Respuesta
  • True
  • False

Pregunta 2

Pregunta
The basilar part of the pons is made of fibers only.
Respuesta
  • True
  • False

Pregunta 3

Pregunta
Within the pons tegmentum are located the nuclei of the cranial nerves IX, X and XI.
Respuesta
  • True
  • False

Pregunta 4

Pregunta
The roots of XII cranial nerve appear in the retroolivary sulcus.
Respuesta
  • True
  • False

Pregunta 5

Pregunta
The midbrain is delineated from the diencephalon by the optic tracts.
Respuesta
  • True
  • False

Pregunta 6

Pregunta
The nuclei of the caudal colliculus are relay station in the auditory pathway.
Respuesta
  • True
  • False

Pregunta 7

Pregunta
CN VI (Abducens) appears in the interpenduncular fossa.
Respuesta
  • True
  • False

Pregunta 8

Pregunta
The brainstem contains reflex centers for respiration and cardiovascual control
Respuesta
  • True
  • False

Pregunta 9

Pregunta
Phylogenically new parts of the brain stem are located on its ventral aspect
Respuesta
  • True
  • False

Pregunta 10

Pregunta
Substantia nigra is part of the pyramid system
Respuesta
  • True
  • False

Pregunta 11

Pregunta
The following structures are found in the opened part of the dorsal surface of medulla oblongata:
Respuesta
  • Pyramidal decussation
  • Olive
  • Vagal trigone
  • Facial colliculus
  • Gracile tubercle

Pregunta 12

Pregunta
Breathing centers accessory to the medulla oblongata are located in which brain area?
Respuesta
  • Cerebellum
  • Pons
  • Hypothalamus
  • Midbrain

Pregunta 13

Pregunta
The brain stem includes all of the following except
Respuesta
  • Medulla
  • Pons
  • Midbrain
  • Cerebral cortex

Pregunta 14

Pregunta
The area that coordinates visual reflexes is the:
Respuesta
  • Cerebellum
  • Superior Colliculus
  • Inferior Colliculus
  • Cerebral peduncles

Pregunta 15

Pregunta
How many of the pairs of cranial nerves originate from the brain stem?
Respuesta
  • Ten
  • All of them arise from the brain stem
  • Two
  • None of them arise from the brain stem
  • One

Pregunta 16

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

Pregunta 17

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

Pregunta 18

Pregunta
Which of the following IS NOT a medullary vital center
Respuesta
  • Blood pressure
  • Cardiac
  • Vasomotor
  • Respiratory

Pregunta 19

Pregunta
Three nuclei within the medulla oblongata function as vital centers for controlling heart rate, blood pressure and ............................................
Respuesta
  • Rate and depth of breathing
  • Emotions
  • Body temperature
  • Water and electrolyte balance

Pregunta 20

Pregunta
The centres that control vital visceral activities are located within the .............. area of the brain.
Respuesta
  • Hypothalamus
  • Cerebral cortex
  • Pons
  • Medulla oblongata

Pregunta 21

Pregunta
In the floor of the fourth ventricle
Respuesta
  • 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

Pregunta 22

Pregunta
The following structures are found in the midbrain
Respuesta
  • 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.

Pregunta 23

Pregunta
The following nuclei are found in the pons:
Respuesta
  • The facial nucleus
  • The oculomotor nucleus
  • The descending or spinal nucleus of the trigeminal nerve
  • The abducent nucleus
  • The inferior salivary nucleus

Pregunta 24

Pregunta
In the medulla oblongata:
Respuesta
  • 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

Pregunta 25

Pregunta
The medial lemniscus
Respuesta
  • 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.

Pregunta 26

Pregunta
The pyramid of the hind brain
Respuesta
  • 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

Pregunta 27

Pregunta
The pons
Respuesta
  • 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.

Pregunta 28

Pregunta
The following are found in the midbrain
Respuesta
  • The medial lemniscus
  • The frontopnontine fibres
  • The lateral lemniscus
  • The red nucleus
  • The medial geniculate body

Pregunta 29

Pregunta
The Pons:
Respuesta
  • 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

Pregunta 30

Pregunta
The following are found in the midbrain:
Respuesta
  • The nucleus of the oculomotor nerve
  • The tectospinal tract
  • The medial longitudinal bundle
  • The superior salivary nucleus
  • The nucleus of the tractus solitarius
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