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CNS > Brodmann's Areas > Flashcards

Brodmann's Areas Flashcards

1
Q

Areas 1,2,3: Function

A
  • Pain
  • Thermal
  • Deep touch
  • Light touch
  • Vibratory
  • Kinesthetic input
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2
Q

Areas 1,2,3: Location

A
  • Post central gyrus of the parietal lobe
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3
Q

Areas 1,2,3: Affected aeas

A
  • Area 4,5,6
  • Lamina IV, V, VI developed
  • Thalamic efferent from VPL and VPM
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4
Q

Areas 1,2,3: Special notes

A
  • “Somesthetic cortex”

- Thick pallium

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5
Q

Area 4: Function

A
  • Motor initiation of distal limbs, facial and oral muscles
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6
Q

Area 4: Location

A
  • Precentral gyrus of frontal lobe
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7
Q

Area 4: Affected areas

A
  • Areas 5,6

- Lamina V, VI developed

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8
Q

Area 4: Special notes

A
  • Only area to contain Betz (large pyramidal) cells

- Contributes most to pyramidal system

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9
Q

Area 6: Function

A
  • Influences proximal portion of extremities
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10
Q

Area 6: Location

A
  • In front of area 4
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11
Q

Area 6: Special notes

A
  • “Premotor region”
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12
Q

Area 8: Functions

A
  • Initiates voluntary movements of the eye

- Stimulates LMN move 6 extraocular eye muscles

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13
Q

Area 8: Location

A
  • In front of area 4
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14
Q

Area 8: Special notes

A
  • “Premotor region”
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15
Q

Areas 9,10,11,12: Function

A
  • Elaboration of thought
  • Abstract reasoning
  • Imaginative and emotional reasoning
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16
Q

Areas 9,10,11,12: Location

A
  • Anterior and rostral part of frontal lobe
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17
Q

Areas 9,10,11,12: Affected areas

A
  • Lamina II, III developed (assocative cortex)
18
Q

Areas 9,10,11,12: Special notes

A
  • “Prefrontal cortex”
19
Q

Area 44: Function

A
  • Motor speech center
20
Q

Area 44: Location

A
  • Frontal operculum
21
Q

Area 44: Affected areas

A
  • Area 4: Muscles for speech, writing, signing

- Receives association fibers via parietal and temportal

22
Q

Area 44: Special notes

A
  • Broca’s Speech Area
  • Stroke = Motor aphasia
  • Connected to 22 arcuate fasciculi
23
Q

Areas 17,18,19: Functions

A
  • Receives fibers from lateral geniculate body

- 18,19: Integrating , memory storage from visual sensation

24
Q

Areas 17,18,19: Location

A
  • Calcarine sulcus
25
Q

Areas 17,18,19: Special notes

A
  • Primary visual cortex
  • “Striate cortex” relation to lamina IV
  • Damage 18,19 = Prosopagnosia
26
Q

Area 41: Functions

A
  • Hear
  • Integration of pitch
  • Tone loudness
27
Q

Area 41: Location

A
  • Transverse temporal gyrus (Heschl’s gyrus)
28
Q

Area 41: Special notes

A
  • Primary auditory cortex

- Input comes from Medial Geniculate Body

29
Q

Area 22: Functions

A
  • Hearing memory function
  • Brings underlying structure of utterance together
  • Formation of the written word
30
Q

Area 22: Location

A
  • Surrounds area 41

- Extends nearly into parietal lobe

31
Q

Area 22: Associated area

A
  • Info from parietal lobe (5,7,39,40)

- Info from occipital lobe (17,18,19)

32
Q

Area 22: Special notes

A
  • “Secondary Association Cortex”
  • Damage = dysphasia
  • Connected to 44 by arcuate fasciculi
33
Q

Areas 5,7,39,40: Functions

A
  • Synthesizing memory

- Sensation into creative function (reading, writing, and language)

34
Q

Areas 5,7,39,40: Location

A
  • Sandwiched between somesthetic, auditory, and visual reception region
  • Fills bulk of parietal lobe
35
Q

Areas 5,7,39,40: Special notes

A
  • Damage to 39 (angular gyrus) = alexia and agraphia
36
Q

Area 43: Function

A
  • Taste reception region
37
Q

Area 43: Location

A
  • Parietal operculum
38
Q

Areas 34,28: Function

A
  • Olfactory area
39
Q

Areas 34,28: Location

A
  • 34: Uncus

- 28: Parahippocampal gyrus

40
Q

Areas 34,28: Special notes

A
  • 1st memories probably of smell

- Does NOT touch the thalamus

CNS (3 decks)

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