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CNS Questions > CNS > Flashcards

CNS Flashcards

1
Q

subdural hermatoma can result from

A

rupture of a cerebral vein entering the superior sagittal sinus

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2
Q

cerebrospinal fluid absorped through

A

arachnoid villi

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3
Q

regeneration of neurons is possible in presence of available blood supply

A

false

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4
Q

Mylenation is necessary for transmission of the nerve impulses

A

true

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5
Q

nucleus of the neurons is normally central in position

A

true

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6
Q

astrocytes form the blood brain barrier( BBB)

A

true

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7
Q

corticospinal tract descend through the posterior limb of the internal capsule

A

true

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8
Q

tectospinal tract responsible for the movement of neck muscles mainly

A

true

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9
Q

vestibulospinal tract is responsible for equilibrium and posture

A

true

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10
Q

lower motor neurons lies in the posterior horn of grey matter

A

false found in anterior horn of grey matter

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11
Q

concerning the thalamus which of the following is true …

A.) VPL(ventral posterior lateral nucleus) receive all
ascending sensory inputs

B.) Lateral geniculate body is the third order neuron of
audition

C.) It related medially to the anterior limb of the internal
capsule

D.) Anterior nucleus is part of the memory processing
circuit

A

D.

anterior nucleus of thalamus (ANT) is a key component of the hippocampal system for episodic memory. The ANT consist of 3 subnuclei with distinct connectivity with the subicular cortex, retrosplenial cortex, and mammillary bodies

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12
Q

concerning the hypothalamus which of the following is false …

A.) It connect to the anterior pituitary via portal system

B.) Paraventricular nucleus release oxytocin

C.) It regulate the body homeostasis

D.) It lies just inferior & lateral to the thalamus

A

D.

hypothalamus is located on the undersurface of the brain. It lies just below the thalamus and above the pituitary gland

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13
Q

hypothalamus is connected to the anterior pituitary via

A

hypophyseal portal system

within the infundibulum is a bridge of capillaries that connects the hypothalamus to the anterior pituitary this network, called the hypophyseal portal system, allows hypothalamic hormones to be transported to the anterior pituitary without first entering the systemic circulation

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14
Q

paraventricular nucleus of the hypothalamus release

A

Oxytocin

bonding hormone

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15
Q

regulates the body homeostasis

A

hypothalamus

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16
Q

regarding the hypoglossal nerve (12th ) which of the following is true …

A.) It is component is SSE

B.) It leave the medulla oblongata via the posterior lateral
aspect

C.) Hypoglossal nucleus locate in the upper medulla close
to the fourth ventricle

D.) It supply the entire muscles of the tongue

A

C.

hypoglossal nerve (12TH CN) is GSE

hypoglossal nerve (12TH CN) leaves the medulla anterior lateral to pyramids and medial to olives

hypoglossal nucleus is located in tegmentum of upper medulla close to the midline, lying deep to the hypoglossal trigone

hypoglossal nerve supplies …
All of the intrinsic muscles of the tongue.
Three extrinsic muscles of the tongue: the genioglossus, hyoglossus and styloglossus muscles.
As well as the geniohyoid muscle (a suprahyoid muscle

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17
Q

loss of tast sensations from the tip of the tongue occurs in lesions of which nerve?

A.)Vagus

B.)Glosso pharyngeal

C.)Facial

D.)Hypoglossal

A

C.

tip of tongue - 7
middle of tongue - 9
posterior of tongue - 10

18
Q

which of the following nucleus is common to IX, X and XI cranial nerves…

A.) Nucleus ambiguous

B.) Dentate nucleus

C.) Red nucleus

A

A.

glossopharyngeal
vagus
accessory nerve

19
Q

which of the followings is correct regarding to functions of limbic system…

A.) Is concerned with reward system that is strong factor in learning

B.) Is concerned with understanding of ideas

C.) Is located in the neocortex

D.) Is concerned with understanding meaning of sensory in put

A

C.

limbic system is a set of structures in the brain that deal with emotions and memory. consists of fornix, hippocampus, cingulate gyrus, amygdala, the parahippocampal gyrus, and parts of the thalamus. The hippocampus is one of the first areas affected by Alzheimer’s disease

20
Q

which of the followings is correct regarding to the Broca’s area…

A.) Site for of processing idea into motor program

B.) Is located in the occipital lobe

C.) Involve motor control area of muscles of the hand

D.) Receives information from auditory area

A

A.

Broca’s area region in the frontal lobe of the dominant hemisphere, usually the left, of the brain with functions linked to speech production.

21
Q

which of the following cell is responsible for myelination in peripheral nervous system…

A.) Kupffer cell

B.) Fibroblast cell

C.) Mesangial cell

D.) Schwann cell

A

D. Schwann cell

22
Q

which of the followings is correct regarding the functions of cerebellum..

A.) Is responsible for swinging of upper limbs during
walking

B.) Coordinate movements

C.) Is responsible for initiation of the gross movement

D.) Its lesion cause flaccid paralysis

A

B. Coordinate movements

23
Q

conserning the motor area of cerebral cortex which of the followings is true…

A.) Is responsible for initiation of gross movement

B.) Control muscle movement via spinothalamic tract

C.) left cortex is concerned with control muscles of the
face right side only

D.) Localized lesion cause complete spastic paralysis

A

D. Localized lesion cause complete spastic paralysis

24
Q

the visual area is found around the _____ sulcus:

A.) Parieto-occipital

B.) Callosal

C.) Collateral

D.) Calcarine

A

D. Calcarine

calcarine is part of occipital lobe

25
Q

which of the followings is correct regarding Hemisection of the spinal cord..

A.) Normal sensory functions at the same side at the same level of the lesion

B.) Flaccid paralysis at the same side at the same level of the lesion

C.) Flaccid paralysis the same side at the above level of the lesion

D.) Loss of vibration sense just above the side of the lesion

A

B Flaccid paralysis at the same side at the same level of the lesion

26
Q

deep cerebellar nuclei include the following except…

A.) Embliform nucleus ,fastigial

B.) Dentate nucleus

C.) Amygdaloid nucleus

D.) Globose nucleus

A

C. Amygdaloid nucleus

27
Q

Which of the following statement concerning the olfactory nerve is false..

A.) It projects directly to the forebrain

B.) It synapses with mitral cells +SSA SVA

C.) Its GSA nerve

D.) It enters the skull via cirbriform plate

A

C. Its GSA nerve XXXXXXX

olfactory nerve is a ?

28
Q

which of the following statement concerning the trigeminal nerve is false…

A.) Contains SVE and GSA fibers

B.) It innervates the tensor tympani muscle

C.) It innervates the supra tectorial dura

D.) It innervates the skin over the angle of the jaw

A

D. It innervates the skin over the angle of the jaw XXXXX

trigeminal nerve innervates the muscles of mastication: medial pterygoid, lateral pterygoid, masseter and temporalis. The mandibular nerve also supplies other 1st pharyngeal arch derivatives: anterior belly of digastric, mylohyoid, tensor veli palatini and tensor tympani.

29
Q

which of the following cranial nerve that contains parasympathetic functions?

A.) Abducent

B.) Facial

C.) Trigeminal

D.) Vistibulocochlear

A

B. Facial

nerves with parasympathetic fibres include
oculomotor nerve facial nerve
glossopharyngeal nerve vagus nerve

30
Q

which of the following is not part of basal ganglia…

A.) Amygdaloid nucleus
B.) Uncus
C.) Caudate nucleus
D.) Lentiform nucleus

A

B. Uncus

uncus is an anterior extremity of the parahippocampal gyrus

31
Q

which of the following is not white matter of the brain…

A.) Internal capsule

B.) Foriceps minor

C.) Corpus callous

D.) Lentiform nucleus

A

D. Lentiform nucleus

lentiform nucleus comprises the putamen and the globus pallidus within the basal ganglia. With the caudate nucleus, it forms the striatum. It is a large, lens-shaped mass of gray matter just lateral to the internal capsule

32
Q

the posterior horn of the spinal cord contains the following nuclei except…

A.) Nucleus dorsalis

B.) Gracile

C.) Proporius

D.) Substantiaglatinosa

A

B.Gracile

gracile fasciculus carries sensory information from the lower half of the body entering the spinal cord at the lumbar level. The cuneate fasciculus carries sensory information from the upper half of the body (upper limbs, trunk, and neck) entering the spinal cord at the cervical level

33
Q

which of the following arteries supply the internal capsule…

A.) Anterior cerebral

B.) Superior cerebellar

C. Thalamostriate

D.) Posterior cerebral

A

C. Thalamostriate

34
Q

the main neurotransmitters involved in the mood control are

A.) Acetylcholine and dopamine

B.) Acetylcholine and nor epinephrine

C.) Nor epinephrine and serotonin

D.) Serotonin and dopamine

A

D. Serotonin and dopamine

35
Q

anti psychotic drugs are also known as…

A.) Minor tranquillisers

B.) Neuroleptics

C.) Thymoleptics

D.) Hallucinogens

A

B. Neuroleptics

36
Q

hypnotic drugs are used to treat…

A.) Psychosis

B.) Sleep disorders

C.) Narcolepsy

D.) Parkinsonian disorders

E.) Epilepsy

A

B. Sleep disorders

37
Q

The major cause of bacterial meningitis in adults is…

A.) S.aglactiae

B.) H.influenzae

C.) N.meningitidis

D.) L.monocytogens

E.) S.aureus

A

C. N.meningitidis

38
Q

what is the main procedure for diagnosis of meningitis …

A.) C.T brain

B.) Lumbar puncture for bacteriological investigations

C.) MRI for the brain and the spinal cord

D.) CBC for total and differential count of the white blood
cells

E.) Thorough clinical examination looking for Kerning’s sign

A

B. Lumbar puncture for bacteriological investigations

39
Q

what is the commonest cause of encephalitis…

A.) N.meningitidis

B.) S.agalactiae

C.) Viruses

D.) NaegleriafowlerI

E.) H.influenzae

A

C. Viruses

40
Q

a blood film stained with Geimsa stain is the best method for diagnosis of…

A.) Meningitis

B.) Trypanosomiasis

C.) Encephalitis

D.) Rabeis

E.) Mumps

A

B. Trypanosomiasis

41
Q

the following is true for tetanus…

A.) It is caused by infection of the clostridium bacteria of nervous tissue

B.) Is due to septicemia caused by clostridium

C.) Is due to the toxin tetanospsmin spreading through the
blood

D.) Is due to the toxin tetanospsmin ascending through the peripheral nerves

E.) Is caused by consumption of contaminated meat

A

A.) It is caused by infection of the clostridium bacteria of nervous tissue

CNS Questions (1 decks)

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