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Block 12 Ellen > L16: An approach to disorders of the nervous system > Flashcards

L16: An approach to disorders of the nervous system Flashcards

1
Q

CNS=

A

brain and spinal cord

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2
Q

7 features of the frontal lobe

A
  • intellectual function
  • praxis
  • inhibition
  • bladder continence
  • saccadic eye movement
  • motor function
  • expressive language (dominant lobe)
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3
Q

frontal lobe dementia= (5)

A
  • disinhibited behaviour
  • sweet tooth
  • reduced sense of smell
  • bladder dysfunction
  • gait apraxia
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4
Q

what is the medial motor homoculus (legs) supplied by

A

anterior cerebral artery

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5
Q

what is the lateral motor homoculus (arm) supplied by

A

middle cerebral artery

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6
Q

2 parts of corticospinal tract

A
  • lateral corticospinal tract

- anterior corticospinal tract

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7
Q

where does the lateral corticospinal tract decussate

A

medullary pyramids

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8
Q

where does the anterior corticospinal tract decussate

A

spinal level

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9
Q

when does the corticospinal tract become fully myelinated

A

2 years old

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10
Q

midbrain cranial nerves=

A

3 and 4

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11
Q

pons cranial nerves=

A

5,6 and 7

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12
Q

medulla cranial nerves=

A

9,10,11,12

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13
Q

left middle cerebral artery stroke= (3)

A
  • right upper motor facial weakness (lower face)
  • expressive dysphasia
  • right arm weaker than leg
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14
Q

anterior cerebral artery stroke =

A
  • leg affected more than arm

- speech not affected

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15
Q

temporal lobe features

A
  • memory
  • smell
  • hearing
  • vestibular
  • emotion
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16
Q

emotion in which system

A

limbic

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17
Q

temporal lobe epilepsy –>

A
  • dejavu
  • hallucinations of smell, taste, visual and spatial recognition
  • panic
  • tonic clonic seizures
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18
Q

occipital lobe feature

A

vision

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19
Q

parietal lobe features=

A

-sensory integration
-receptive language
dyslexia

20
Q

2 main sensory tracts=

A
  • DCML

- Spinothalamic

21
Q

what kind of fibers does spinothalamic run through

A

small myelinated fibers

22
Q

where do the sensory nerves of spinothalamic run

A

into dorsal root ganglion at each dermatome

23
Q

where do spinothalamic decussate

A

ascend 1-2 spinal levels and decussate

24
Q

anterior spinothalamic tract=

A

crude touch and pressure

25
Q

lateral spinothalamic tract=

A

pain and temperature

26
Q

where does spinothalamic terminate

A

sensory parietal cortex

27
Q

dorsal columns sense

A

joint position, deep pressure and vibration

28
Q

where does DCML decussate

A

medulla

29
Q

where does DCML terminate

A

thalamus

30
Q

left sided spinal cord injury–>

A
  • right sided loss of pain, temp, crude touch

- left sided loss of proprioception

31
Q

substania nigra produces

A

dopamine

32
Q

red nucleus used for

A

-coordination

33
Q

what is dopamine the precursor of

A

melanin

34
Q

weber syndrome=

A

midbrain stroke
-oculomotor palsy
contralateral motor dysfunction

35
Q

wallenburgs syndrome=

A

lateral medullary syndrome

36
Q

lateral medullary syndrome caused by

A

posterior inferior cerebellar artery stroke

37
Q

lateral medullary syndrome causes

A
  • impaired gag reflex
  • ipsilateral facial sensory loss
  • ipsilateral horner’s
  • vertigo
  • altered taste
38
Q

4 other brain stem functions

A
  • respiratory centre
  • cardiac centre
  • reticular activating centre
  • conduit for white matter tracts
39
Q

3 parts of the cerebellum

A
  • spinocerebellum
  • vestibulocerebellum
  • cerebrocerebellum
40
Q

middle of the cerebellum=

A

vermis

41
Q

anterior cerebellum damage=

A

lower limbs affected by alcohol

42
Q

vestibulocerebellum used for

A

posture and balance

43
Q

spinocerebellum used for

A

postural tone

44
Q

cerebrocerebellum used for

A

fine coordination

45
Q

Vanish’d features of cerebellar dysfunction

A 
Vertigo 
Ataxia 
Nystagmus 
Intention tremor 
Slurred speech 
Hypotonia 
Dysmetria
46
Q

what side do cerebellar lesions always affect

A

ipsilateral

Block 12 Ellen (25 decks)

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