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Psychology Intro 2 > Brain And Behaviour > Flashcards

Brain And Behaviour Flashcards

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1
Q

What makes up the PNS

A

The somatic nervous system

Automatic nervous system

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2
Q

What does the SNS do?

A

Controls movement of skeletal muscles

Transmits sensomatory info to the CNS

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3
Q

What does the ANS do?

A

Body’s negative function (involuntary)

Sympathetic, parasympathetic

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4
Q

What’s in the CNS?

A

Brain and spinal cord

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5
Q

What’s the function of the CNS

A

Carries commands from (efferent) the brain to the muscles and organs

Carries sensory info to (afferent) the brain

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6
Q

What is locked in syndrome

A

Complete paralysis of voluntary muscles except eyes

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7
Q

What’s the neural tube

A

Hollow tube

ORIGIN of the CNS

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8
Q

What are meninges

A
  • 3 layers of tissue that encase the CNS

Dura mater

Arachnoid membrane

Pia mater

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9
Q

What’s the dura matter (meninge)

A

Hard mother

Outermost later

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10
Q

What’s the arachnoid membrane (meninge)

A

Subarachnoid space

Filled with cerebrospinal fluid

Cushions the brain

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11
Q

What’s the PIA Mater (meninge)

A

Layer adjacent to the surface of the brain

Thin and delicate

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12
Q

Where is the clear cerebrospinal fluid found

A

Ventricular system

Subarachnoid space

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13
Q

Why do we need cerebrospinal fluid

A

Protection from shock

Reduction of weight

Carries hormones to other areas of the brain

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14
Q

What does the blood brain barrier do

A

Limits passage between the bloodstream and the brain

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15
Q

How does the blood brain barrier limit passage between the blood stream and the brain?

A

Capillaries are tighter

Only small molecules can pass

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16
Q

What are ventricles

A

Four hollow interconnected spaces located in the brain

All produce CSF

17
Q

What is hydrocephalus

A

Water on the brain

(CSF on the brain)

Occurs at birth or acquired

18
Q

What is the cerebral cortex

A
  • bark

- outermost layer of gray matter of the cerebral hemispheres

19
Q

How thick is the cerebral cortex?

A

3mm

20
Q

What is the cerebral hemisphere

A

One of the two major portions of the forebrain

Covered by cerebral cortex

21
Q

What is a sub cortical region

A

Region located within the brain

22
Q

What is a sulcus

A

Groove in the surface of the cerebral hemisphere

Smaller than a fissure

23
Q

What is a fissure

A

Major groove in the surface of the brain

Larger than a sulcus

24
Q

What is a gyrus

A

Convolution of the cortex of the cerebral hemispheres

Separated by sulci or fissures

25
Q

What does a longitudinal fissure separate

A

2 hemispheres

26
Q

What does a lateral sulcus/ fissure separate

A

The temporal lobe from the frontal and parietal lobes

27
Q

What does a central sulcus/ fissure separate

A

Frontal lobe from the parietal lobe

28
Q

What are the 5 subdivisions of the brain

A

Telencephalon

Diencephalon

Mesencephalon

Metencephalon

Mylencephalon

29
Q

What do the frontal lobes control?

A

Executive functions (higher level cognitive functions eg problem solving)

Movement / motor controls
Primary motor cortex

Language (brocas area)

30
Q

Where are the parietal lobes and what do they do

A
  • somatosensory cortex

- spatial processing

31
Q

What are the temporal lobes connected to

A

Limbic system / hippocampus

32
Q

What do the temporal lobes do

A

Primary auditory cortex

Wernickes area

33
Q

Why is the basal ganglia important

A

Movement

Implicit learning

Role in automatic processing of learned skill eg driving a car

34
Q

What 3 things are in the limbic system

A

Hippocampus

Amygdala

Cingulate gyrus

35
Q

What’s the thalamus

A

“Inner chamber”

Sensory relay station

36
Q

What does the thalamus do

A

Processes most info to and from brain centres

37
Q

What is the hypothalamus

A

The master gland

Pituitary gland (hormone)

38
Q

What are the 2 major areas of the midbrain

A

Tectum (roof)
Eye movement
Auditory orienting

Tegmentum (covering)
Arousal
Body movement

Psychology Intro 2 (11 decks)

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