the Cerebrum Flashcards

1
Q

sulci

A

grooves or depressions

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2
Q

gyri

A

ridges or elevations

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3
Q

corpus callosum

A

connects two cerebeal hemispheres togather

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4
Q

central sulcus

A

grooves seperating the frontal and parietal lobes

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5
Q

lateral sulcus

A

groove seperating the frontal and parietal lobes from the temporal lobe

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6
Q

precentral gyrus

A
  1. ridge directly anterior to the central sulcus

2. location of primary motor cortex

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7
Q

post central gyrys

A
  1. ridge directly posterior to the central sulcus

2. location of primary somatosensory cortex

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8
Q

superior temporal gyrys

A
  1. ridge located inferior to the lateral sulcus
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9
Q

function of frontal lobe

A
  1. personality
  2. mood
  3. language
  4. social conduct
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10
Q

anterior cerebral arteries

A

supply the anterior medial part of the cerebrum

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11
Q

middle cerebral arteries

A

supply most of the lateral portions of the cerebrum

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12
Q

posterior cerebral arteries

A
  1. branches of the basilar arteries

2. supply medial and lateral sides of the cerebrum posteriorly

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13
Q

cerebrovascular haemorrhage / Stroke

A

“an abrupt loss of focal brain function lasting more than 24 hours due to either spontaneous haemorrhage into brain substance or inadequate blood supply to part of the brain i.e. ischaemia (thrombosis, embolism)“.

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14
Q

frontal lobe stroke

A
  1. personality and behavioral chanages

2. inability to solve problems

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15
Q

parietal lobe stroke

A

typically presents with attention deficits e.g. contralateral hemispatial neglect syndrome: where the patient does not pay attention to the side of the body opposite to the lesion.

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16
Q

Temporal lobe stroke

A

presents with recognition deficits (agnosias) e.g. auditory agnosia: patient cannot recognise basic sounds, prosopagnosia: failure to recognise faces.

17
Q

Occipital lobe

A

visual field defects: contralateral hemianopia or quadrantanopia with macular sparing.