Quiz
CNS-Brain Stem- Anatomy PMU 1st Year 2nd Semester
Questions in this quiz (30)
1The pons connects with the cerebellum through pedunculus cerebellaris medius:
- ATrue
- BFalse
2The basilar part of the pons is made of fibers only.
- ATrue
- BFalse
3Within the pons tegmentum are located the nuclei of the cranial nerves IX, X and XI.
- ATrue
- BFalse
4The roots of XII cranial nerve appear in the retroolivary sulcus.
- ATrue
- BFalse
5The midbrain is delineated from the diencephalon by the optic tracts.
- ATrue
- BFalse
6The nuclei of the caudal colliculus are relay station in the auditory pathway.
- ATrue
- BFalse
7CN VI (Abducens) appears in the interpenduncular fossa.
- ATrue
- BFalse
8The brainstem contains reflex centers for respiration and cardiovascual control
- ATrue
- BFalse
9Phylogenically new parts of the brain stem are located on its ventral aspect
- ATrue
- BFalse
10Substantia nigra is part of the pyramid system
- ATrue
- BFalse
11The following structures are found in the opened part of the dorsal surface of medulla oblongata:
- APyramidal decussation
- BOlive
- CVagal trigone
- DFacial colliculus
- EGracile tubercle
12Breathing centers accessory to the medulla oblongata are located in which brain area?
- ACerebellum
- BPons
- CHypothalamus
- DMidbrain
13The brain stem includes all of the following except
- AMedulla
- BPons
- CMidbrain
- DCerebral cortex
14The area that coordinates visual reflexes is the:
- ACerebellum
- BSuperior Colliculus
- CInferior Colliculus
- DCerebral peduncles
15How many of the pairs of cranial nerves originate from the brain stem?
- ATen
- BAll of them arise from the brain stem
- CTwo
- DNone of them arise from the brain stem
- EOne
16All of the following statements concerning the vestibulocerebellar pathway are correct except it:
- APlays a role in the initiation, planning and the timing of voluntary motor activities.
- BProject via the medial longitudinal fasciculus (MLF)
- CReceives input from the cristae ampullares
- DReceives input from the macular of the utricle and saccule
- EIncludes the flocculonodular lobe
17All of the following statements concerning the red nucleus are correct except:
- AIt influences the cerebellum via the inferior olivary nucleus.
- BIts primary effect is on truncal and proximal muscles.
- CIt receives bilateral input from the motor and premotor cortext
- Dit receives contralateral input from the nucleus interpositus.
- EIt receives modest input from the contralateral dentate nucleus
18Which of the following IS NOT a medullary vital center
- ABlood pressure
- BCardiac
- CVasomotor
- DRespiratory
19Three nuclei within the medulla oblongata function as vital centers for controlling heart rate, blood pressure and ............................................
- ARate and depth of breathing
- BEmotions
- CBody temperature
- DWater and electrolyte balance
20The centres that control vital visceral activities are located within the .............. area of the brain.
- AHypothalamus
- BCerebral cortex
- CPons
- DMedulla oblongata
21In the floor of the fourth ventricle
- AThe trigonum vagi is at the inferior angle next to the midline.
- BThe facial colliculus is next to the midline in its upper half.
- CThe vestibular area is adjacent to the lateral angle.
- DThe trigonum hypoglossi is lateral to the trigonum vagi
- EThe abducent nucleus lies deep to the facial colliculus
22The following structures are found in the midbrain
- AThe substantia nigra
- BThe superior colliculi (Corpora Quadrigemina)
- CThe motor nucleus of the trigeminal nerve
- DThe nucleus of the abducent nerve
- EThe decussation of the superior cerebellar peduncles.
23The following nuclei are found in the pons:
- AThe facial nucleus
- BThe oculomotor nucleus
- CThe descending or spinal nucleus of the trigeminal nerve
- DThe abducent nucleus
- EThe inferior salivary nucleus
24In the medulla oblongata:
- AThe olive lies between the pyramid and the inferior cerebellar peduncle
- BThe vagus nerve emerges between the pyramid and the olive
- CThe decussation of the pyramids in found in the posterior median sulcus.
- DThe gracile tubercle lies posteriorly next to the midline
- EThe spinal nucleus of the trigeminal nerve lies dorsilaterally
25The medial lemniscus
- AIs formed by fibres which come mainly from the gracile and cuneate nuclei of the same side
- BIs part of the proprioceptive pathway from the periphery to the cerebral cortex
- CForms a bundle of fibres lying anteroposteriorly in the pons
- DForms a bundle of fibres lying anteroposteriorly in the medulla oblongata
- EEnds in the lateral nucleus of the thalamus.
26The pyramid of the hind brain
- AIs medial to the roots of the hypoglossal nerve.
- BIs medial to the olive
- CConsists mainly of descending fibres
- DConsists of fibres all of which decussate in the medulla oblongata.
- EConsists of fibres all of whose cells bodies are in the precentral gyrus of the cerebral hemispheres
27The pons
- AContain nuclei whose neurones have fibres which go to the cerebellum.
- BContains nuclei which connect the cerebral cortex with the cerebellar cortex
- CLies on the basilar part of the occipital bone.
- DIs anterior to the basilar artery.
- EIs superior to the emerging facial nerve.
28The following are found in the midbrain
- AThe medial lemniscus
- BThe frontopnontine fibres
- CThe lateral lemniscus
- DThe red nucleus
- EThe medial geniculate body
29The Pons:
- AHas the trigeminal nerve emerging from its superior border
- BContains in its anterior (basilar) part the nuclei pontis
- CContains in its anterior part the pyramidal (corticospinal) tracts
- DIs connected to the cerebellum by the superior cerebellar peduncle.
- EContains the upward continuation of the medial lemniscus
30The following are found in the midbrain:
- AThe nucleus of the oculomotor nerve
- BThe tectospinal tract
- CThe medial longitudinal bundle
- DThe superior salivary nucleus
- EThe nucleus of the tractus solitarius
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- MCQ questions upload - 2nd semester/2nd test - PMU
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- Med Student
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