Brain Regions Flashcards

Module 1 (40 cards)

1
Q

What percentage of the brain does the cerebrum make up and what does it consist of?

A

83%
Left & right hemispheres, separated by the central sulcus, it containts 52 distinct regions known as Brodmann’s areas

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2
Q

What does the left cerebral hemisphere primarily control?

A

Controls right side of the body, dominant for language in most people.
Ex: Primarily controls writing for a right-handed person.

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3
Q

What does the right cerebral hemisphere primarily control?

A

Controls most functions of the left sidce ofc the body. Responsible for understanding facial expressions and emotions.

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4
Q

What are the four major lobes of each cerebral hemisphere

A

Frontal, Parietal, Temporal, Occipital

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5
Q

Which lobe is responsible for higher executive functioning?

A

Frontal Lobe

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6
Q

What cognitive skills are controlled by the frontal lobe?

A

Planning, reasoning, judgment, flexibility, insight, prioritizing, intelligence, working memory
(critical thinking)

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7
Q

What type of speech is controlled by the frontal lobe?

A

Expressive speech (Broca’s area)

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8
Q

Damage to Broca’s area causes what condition and is what lobe?

A

Expressive aphasia
Prefrontal Cortex (Frontal lobe)

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9
Q

How does frontal lobe damage affect personality?

A

Poor judgment, impulsivity, persoality changes, impaired social skills

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10
Q

What behavioral changes may indicate a frontal lobe tumor?

A

Disinhibition, poor insight, emotional and personality changes

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11
Q

How is the frontal lobe involved in dementia?

A

alterations in personality and emotional state, impaired judgment, disorganized thinking

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12
Q

What does “FLIPPER JW” stand for?

A

Acronym for Frontal Lobe functions:
-Flexibility
-Language
-Insight
-Planning
-Prioritizing
-Expressive speech
-Reasoning
-Judgment
-Working memory

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13
Q

What sensory function is primarily processed in the temporal lobe?

A

Auditory processing

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14
Q

Which area of the brain controls receptive language or language comprehension?

A

Wernicke’s area (temporal lobe)

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15
Q

Damage to Wernicke’s area causes what condition? Where is this located?

A

Receptive aphasia
Temporal Lobe

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16
Q

What types of memory are stored in the temporal lobe?

A

Long-term, episodic, and declarative memory
Ex: Remembering your childhood home or recalling historical facts

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17
Q

What emotional functions involve the temporal lobe?

A

Processing emotional responses, attachment, and social behavior
Ex: Experiencing joy while watching a heartwarming movie

18
Q

Auditory hallucinations are most associated with dysfunction in which lobe?

A

Temporal lobe

19
Q

What memory disturbances are linked to temporal lobe injury?

A

Anterograde and retrograde amnesia

20
Q

What happens to sensory perception after a temporal lobe CVA?

A

Altered perception and difficulty interpreting inputs
Ex: A patient may be unable to differentiate between hot and cold temperatures after a stroke

21
Q

How can temporal lobe damage affect sleep?

A

Sleep-wake cycle disturbances (insomnia or hypersomnia)

22
Q

Problems in the temporal lobe can lead to what?

A

Visual or auditory hallucinations, aphasia and amnesia

23
Q

What is receptive aphasia and problems with which lobe is this correlated with?

A

Difficulty in understanding spoken or written language due to brain damage
Temporal Lobe

24
Q

What is anterograde/retrograde amnesia and what lobe is it associated with?

A

Trouble in forming new memories or recalling past events due to brain injury
Ex: Patient suffering from memory loss after an accident
Temporal Lobe

25
What is the primary function of the occipital lobe?
Vision Processing
26
Where is the primary visual cortex located?
Occipital lobe
27
What is hemianopia?
Loss of half of the visual field in each eye Ex: Patient sees only half of an object they are looking at directly
28
What is quadrantanopia?
Loss of one quarter of the visual field Ex: Patient is unable to see either the upper-right, upper-left, lower-right, or lower-left quadrant of their visual field
29
What causes cortical blindness?
Severe damage to the primary visual cortex
30
What are simple visual hallucinations?
Flashes, colors, geometric shapes (often migraines or drugs)
31
What are complex visual hallucinations?
Lifelike people or scenery associated with neurological disorders like Parkinson's disease and Lewy body dementia Ex: Patient experiences vivid visions of people or animals that are not present
32
Visual hallucinations are classically associated with which dementia?
Lewy body dementia
33
Problems in the occiptal lobe can lead to what?
Visual field defects, blindness and visual hallucinations
34
What is the primary role of the parietal lobe?
Sensory processing Ex: Feeling the warmth of a cup of coffee
35
What types of sensations are processed in the parietal lobe?
Touch, temperature, pain, spatial awareness
36
What higher cognitive tasks involve the parietal lobe?
Reading, Writing, Taste
37
What is sensory-perceptual disturbance? And what lobe causes these issues?
Difficulty accurately interpreting sensations Patietal Lobe Ex: Misinterpreting the sensation of wearing clothes as something crawling on the skin
38
What is agnosia?
A type of sensory-perceptual disturbance. Inability to recognize or interpret sensory input despite intact sensation Ex: Touching a pen but unable to recognize it by touch alone
39
What is stereognosis abnormality? (astereognosis)
The inability to identify familiar objects by touch alone, despite having normal vision and intact primary touch senses (like pain, temperature, and vibration). It means your brain struggles to process tactile information (shape, texture, size) Ex: Holding a set of keys but unable to identify them as keys by touch alone
40
Damage to which lobe causes impaired stereognosis
Parietal lobe