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ABPP-CN > Lezak - Chapter 3 - Beh Geo Brain > Flashcards

Lezak - Chapter 3 - Beh Geo Brain Flashcards

1
Q

How many cells are within the entire CNS?

A

Hundred billion

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2
Q

What part of the neuron is thought to be particularly important in the formation of new memories and neural plasticity?

A

Spine

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3
Q

What two arteries branch from the internal carotid?

A

Anterior cerebral

Middle cerebral

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4
Q

To what brain region does the anterior division of blood supply?

A

Anterior medial frontal lobe

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5
Q

What regions does the middle cerebral feed?

A

Lateral temporal
Parietal
Posterior frontal lobes
Deep subcortical

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6
Q

How many neurons are estimated to be in the cortex?

A

20 billion

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7
Q

From what arteries does the posterior circulation originate?

A

Vertebral arteries

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8
Q

What arteries provide blood to the brain stem and cerebellum?

A

Vertebral arteries

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9
Q

What arteries supply the occipital cortex and medial and inferior regions of the temporal lobe?

A

Posterior cerebral arteries

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10
Q

What is the network that controls wakefulness and alerting mechanisms?

A

Reticular activating system

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11
Q

What contains major pathways for fibers running between the cerebral cortex and cerebellum?

A

Pons

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12
Q

What structures work jointly to correlate postural and kinesthetic information?

A

Pons and cerebellum

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13
Q

What is cerebellar damage known to produce?

A

Problems with fine motor control
Coordination
Postural regulation

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14
Q

What contains s large portion of the RAS?

A

Midbrain

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15
Q

What thalamic nuclei have an established role in memory?

A

DM

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16
Q

Lesions to what thalamic nuclei are observed in Korsakov’s syndrome?

A

DM

17
Q

What structure has important arousal and sleep-producing functions?

A

Thalamus

18
Q

What are the two types of memory impairments observed with thalamic lesions?

A

Anterograde amnesia

Retrograde amnesia with temporal gradient

19
Q

What are the emotional characteristics of Korsakov’s syndrome?

A

Apathy
Loss of spontaneity and drive
Affective flattening

20
Q

What drives are regulated by the hypothalamus?

A

Appetite
Sexual arousal
Thirst

21
Q

What can lesions of the hypothalamus result in?

A 
Obesity
Disorders of temp control
Fatigue
Diminished drive states
Responsivity
22
Q

What are diseases of the basal ganglia characterized by?

A

Abnormal movements at rest

23
Q

What are four functions of the cingulate gyrus?

A

Attention
Response selection
Processing pain
Emotional behavior

24
Q

What are the conduction fibers within a hemisphere called?

A

Association fibers

25
Q

What are the conduction fibers between hemispheres called?

A

Commissural fibers

26
Q

What are the connection fibers between cerebral cortex and lower cognitive centers?

A

Projection fibers

ABPP-CN (26 decks)

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