ANA 303 PQ Flashcards

1
Q

Broca’s area is found in the inferior frontal gyrus (describe its location)

A

True

Frontal lobe, Brodmann area 44 and 45 usually on the left side of the brain

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2
Q

The Broca’s area is only found on one hemisphere of the brain so if damaged would impair the ability of an individual to speak

A

True

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3
Q

Grey matter has many cells containing myelin sheath which gives its grey color

A

false

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4
Q

The anterior association area is primarily involved in intellectual reasoning and socially acceptable behaviour

A

False

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5
Q

The cerebral hemispheres are cound by a thick band of association fibres called corpus callosum

A

True

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6
Q

The corticospinal, and spinothalamic tracts as well as the medial, lateral, trigeminal and spinal menisci are examples of projection fibres

A

True

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7
Q

The fissure of Rolando aka central sulcus arises in the middle of each hemisphere, and separates the frontal lobe from the parietal, while the Sylvian fissure separates the cerebrum from the cerebellum

A

False

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8
Q

Commissural fibers like anterior and hippocampal commissures are involved in inter-hemispheric communication

A

True

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9
Q

Uncaltranstentorial herniation can be seen pushing through the horizontal fissure that separates the cerebrum from the cerebellum

A

True

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10
Q

Ventricular system

They arise as craniocaudal dilatations of the neural tube.

A

True

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10
Q

The prosencephalic dilatation leads to the formation of the lateral ventricles and third ventricle.

A

True

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10
Q

The lateral ventricles are paired laterally and medially.

A

False

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10
Q

The blood-CSF barrier is formed by choroid plexus’ endothelial cells and its sinusoidal capillaries.

A

True

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10
Q

The right and left lateral apertures of Luschka carries CFS from the fourth ventricle to the subarachnoid space via the cistern of the great cerebral vein.

A

False

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10
Q

Communicating hydrocephalus is due to
obstruction in the Foramen of Magendie

A

False

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10
Q

During examinition at a clinic, it was
noticed that the size of an infant’s head
was larger than normal expected of
age. Radiological examination indicate
an obstruction of the cerebral aqueduct
draining the fourth ventricle

A

True

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10
Q

Ventricles

Lined by a specialized stratified
squamous neurospithelium called
ependyma

A

False

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10
Q

The membranes that surround the cisterns in the cranial
cavity are;

  1. Dura and arachnoid mater
  2. Dura mater and ependymal cell layer
  3. Neuronal cell membrane and pia mater
  4. Pia and arachnoid mater
  5. Periosteal and meningeal layers of dura mater
A
  1. Dura and arachnoid mater F
  2. Dura mater and ependymal cell layer F
  3. Neuronal cell membrane and pia mater F
  4. Pia and arachnoid mater T
  5. Periosteal and meningeal layers of dura mater F
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11
Q

Regarding spinal cord lesions;
24.
Lesions of a single posterior root will cause pain in the skin and muscles innervated by that root

A

True

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12
Q

25.
Damage to the anterolateral system Will cause contralateral loss of pain, temperature and crude touch below the level of the lesion.

A

True

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13
Q

26.
Damage to the dorsal column causes ipsilateral disruption of proprioception and pressure above the level of the lesion

A

False, below

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14
Q

27.
Lesion of a single anterior root will cause paralysis to any muscle supplied exclusively by the root

A

True

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15
Q

A 50-year-old man was admitted to the emergency room after a head injury resulting from a motorcycle accident. The patient was diagnosed as having an accumulation of fluid in the cranial cavity. Which space will this quid likely occupy?
28.Sub-pia space
29Subarachnoid space
30. Sub-meningeal space
31. Epidural space
32. Sub-dural space

A

28.Sub-pia space F
29Subarachnoid space T
30. Sub-meningeal space F
31. Epidural space F
32. Sub-dural space F

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16
Q

A patient suffers an embolism
affecting posterior inferior cerebellar artery (PICA), what are the clinical manifestations of this stroke

33 Loss of discriminative touch and
vibratory sense on ipsilateral side of the
body
34 Loss of temperature and pain senses on the ipsilateral side of the body
35 Tongue paralysis that will deviate to
ipsilateral side of artery affected
36. Lower motor neuron paralysis
37. Tongue paralysis that will deviate to
contralateral side of artery affected

A

33 Loss of discriminative touch and
vibratory sense on ipsilateral side of the
body
34 Loss of temperature and pain senses on the ipsilateral side of the body F (contralateral)

35 Tongue paralysis that will deviate to
ipsilateral side of artery affected
36. Lower motor neuron paralysis
37. Tongue paralysis that will deviate to
contralateral side of artery affected

17
Q
  1. Mammalian brain constitutes basically two mode of synaptic transmission
A

True

18
Q

Electrical synapse is the major type of
symapse in the brain

A

False

19
Q

Electrical synapse involves the use of Ca?* channels.

A

False

20
Q

Chemical synapse is slow compared to electrical synapse.

A

True

21
Q

A security guard at a bank was shot in the bank during an attempted bank robbery. He was admitted to the emergency room, and when he regained consciousness, he was given a neurologic examination. The neurologist concluded that the guard has suffered from Brown-Sequard syndrome at the lower left of the thoracic segment of spinal cord. What symptoms will the guard present with?

  1. Loss of tactile stimulation on both legs
  2. Loss of pain sensation on the left leg
  3. Paraplegia
  4. Loss of pain sensation in both upper limbs
A
  1. Loss of tactile stimulation on both legs F
  2. Loss of pain sensation on the left leg F
  3. Paraplegia
  4. Loss of pain sensation in both upper limbs F
22
Q

The limbic system:
46. Comprises the hippocampal forration, pons, Septal area,
Amygdala, and the cingulate gyrus.

A

False

No pons

23
Q
  1. Structures directly or indirectly communicate with the hypothalamus and midbrain PAG.
A

True

24
Q

48.Double vision is related to oculomotor nerve damage.

A

True

25
Q

Limbic system Extends from the ventricular surface to the dentate gyrus.

A

False

It’s the hippocampus that does that

26
Q

In animals, there exists a dorsal septal area.

A

True

27
Q

Circle of Willis is:
51.around the medulla.

A

False

28
Q

The circle of Willis is
Formed by the branches of both carotid and vertebral

A

True

29
Q

The internal carotid arteries branch into smaller arteries that supply oxygenated blood to over 80% of the cerebrum.

A

True

30
Q

Distinction

A

Amen

31
Q

The circle is Willis
Is absent around the anterior commissure.

A

True/false

32
Q

Arachnoid mater is avascular.

A

True

33
Q

The anterior cerebral artery anastomoses with posterior

A

False

34
Q

About Syringomylia:
Bilateral spastic paralysis of the right leg

A

False

35
Q

Syringomyelia

Loss of A Delta, and C fiber receptors in chromosomes innervated by the affected segments

A

False

36
Q

About Syringomyelia

It’s characterized by cavitation and gliosis

A

True

37
Q

About Syringomyelia

It’s a non-developmental abnormality in the central canal of the cervical spinal cord only

A

False

38
Q

Foatures of tethered cord syndrome:

Presents as progressive cauda squina disorder

A

?

39
Q

Tethered cord syndrome

Perineal or perianal pain

A

False

40
Q

Tethered cord syndrome
Low-lying conus (below/ L1-12)

A

False

41
Q

Tethered cord syndrome
Spinal stenosis

A

False

42
Q

Regarding openings in the ventricular system:

Lumbar cistern is the site of lumbar puncture.

A

False

43
Q

Lumbar puncture is contraindicated in intracranial hypertension.

A

False

44
Q

Level of injection for lumbar puncture in both children and adult is the same.

A

False

45
Q

The frontal lobe, the largest of the cerebral lobes:

Extends from the central sulcus to the frontal pole of the brain.

A

True

46
Q
  1. The frontal cortex also extends onto the medial surface of the brain, where it borders the corpus callosum inferiorly
A

True

47
Q

During a routine examination, a physician attempted to ellcit a gag reflex response in a patient by stroking the posterior pharynx with a cotton-tipped robe. This reflex is initiated primarily by activation the sensory endings of
72.Cranial nerve IX
73.Cranial nerve XI
74. Cranial nerve XIl

A

72.Cranial nerve IX T
73.Cranial nerve XI F
74. Cranial nerve XII F

48
Q

A. 57-year-old astronaut was transferred from a psychiatric clinic to the local hospital for neurological examination because he showed signs of Klüver-Bucy syndrome. An MRI revealed the presence of a small tumour in the brain, the locus of this tumour Ilkely includes the:
75. Hippocampal formation
76. Septal area
77. amygdala

A
  1. Hippocampal formation F
  2. Septal area F
  3. amygdala T
49
Q

Dr Olayinka was experiencing difficulfes in a card-sorting test (as a measure of cognitive function) and failed to accurately peroeive the vertical when seated in a tilted chair. Imaging revealed lesion in the;
78. hippocampus
79 septal area
80. prefrontal cortex

A
  1. hippocampus F
    79 septal area F
  2. prefrontal cortex T
50
Q

L3-L4 is ideal for lumbar puncture

A

True