Cerebral Cortex Org & Fxn Flashcards

1
Q

Broca’s Area

A
  • WORD Formation area

- Works closely with Wernicke’s area

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2
Q

Short-Term Memory: Def and Examlple

A
  • Lasts only as long as person thinks of it

- Ex: Telephone number

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3
Q

Motor areas for controlling Hands are also dominant on which hemisphere?

A

Left

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4
Q

What happens if you cut the Corpus Callosum?

A
  • Block of transfer info from Wernicke’s area to Non-dominant Motor Cortex
  • Prevention of the transfer and visual information from Right side to Wernicke’s area
  • 2 SEPARATE conscious portions of the Brain
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5
Q

Structural changes in Long Term Memory

A
  1. Increase in
    - Vesicle release
    - # of transmitter vesicles released
    - # of presynaptic terminals
  2. Changes in DENDRITIC spines
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6
Q

Intra-Cortical Associations fxn are associated with which Cerebral Cortex Layer?

A

I, II, and III

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7
Q

Ex of Association Areas

A
  • Broca’s Area
  • Wernicke’s Area
  • Prefrontal
  • Limbic
  • Parieto-Occipito-Temporal Area
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8
Q

Fibers of the Thalamus are from what layer of the Cerebral Cortex?

A

VI

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9
Q

Secondary Motor Area

A

Provide PATTERNS of Motor ACTIVITY

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10
Q

The Termination of most incoming specific sensory signals are from what layers of the Cerebral Cortex?

A

IV only

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11
Q

Reflexive Memory

A

Aka Skill memory

  • Associated with MOTOR activities
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12
Q

Pyramidal Neurons

A
  • LARGE output neurons

- Cell bodies are TRIANGULAR in shape

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13
Q

Prosopagnosia

A

Inability to recognize faces

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14
Q

Primary Motor areas

A

DIRECT connections with specific MUSCLES

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15
Q

Primary Sensory Areas

A

Detect Specific SENSATIONS

  • Hot
  • Cold
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16
Q

Characteristics of Wernicke’s Area

A
  • Associated with Language COMPREHENSION

- Where Somatic, Visual & Auditory assoc areas MEET

17
Q

Immediate Long Term Memory

A
  • Last Minutes to Weeks

- May become Long-term memory if memory traces are activated enough

18
Q

Origins of MOST output signals come from what layers of the Cerebral Cortex?

A

V and VI

19
Q

Prefrontal Association Area Characteristics

A
  • Receives Pre-analyzed sensory info (Planning)

- Carries out “THOUGHT” Processes

20
Q

Propose of the Corpus Callosum?

A

Connects one hemisphere to another

21
Q

The types of Cortical Neurons in the Cerebral cortex

A
  1. Granular (Stellate)
  2. Fusiform
  3. Pyramidal

“GPF”

22
Q

Prefrontal LOBOTOMY Characteristics

A
  • Loss to solve COMPLEX problems
  • Inappropriate social responses
  • Cannot carry long trains of thought
  • Decrease in levels of aggressiveness
23
Q

T/F: When the Thalamic connections are cut, the fxn of many cortical areas. Become almost completely lost.

A

True

24
Q

How many neurons are in the Cerebral cortex?

A

100 Billion

25
Q

Fusiform Neurons

A
  • Smaller Output neurons

- Send info OUT from the Cerebral Cortex

26
Q

Broca’s Area is almost always dominant on what side of the brain?

A

LEFT

27
Q

The Temporal portion of the brain is closely associated with what?

A

The Limbic system

28
Q

Granular Neurons

A

Aka Stellate

  • Short axons
  • INTERNEURONS
  • BOTH Excitatory and Inhibitory
29
Q

Secondary Sensory Areas

A

Analyze MEANINGS of Specific sensory signals

30
Q

Characteristics of the Limbic System

A

Concerned w/

  • Behavior
  • Emotions
  • Motivation
31
Q

What area plays the Greatest Single role of any part of the Cerebral Cortex for intelligence?

A

Wernicke’s Area

32
Q

Declarative Memory

A

Memory of various DETAILS of an Integrated thought

33
Q

How many layers are in the cerebral cortex?

A

6

34
Q

The output of the Prefrontal association area passes through what?

A

The CAUDATE portion of the Basal Ganglia

35
Q

Declarative memory might include memory of what?

A
  • Surroundings
  • Time relationships
  • Causes of experiences
  • Meaning of experiences
  • Deductions
36
Q

Broca’s Area is dominant in which hemisphere

A

Left

37
Q

Association Areas

A

Receive and Analyze signals SIMULTANEOUSLY for Multiple MOTOR & SENSORY Cortices