Unit Four- Brain Flashcards

1
Q

what is the spinal column

A

3 layers of elastic tissue covering the spine

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2
Q

what is meninges

A

elastic tissue that covers the brain

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3
Q

what is the cerebrum

A

largest part of the brain

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4
Q

what is the cerebellum and what does it control

A

-walnut shaped
-movement and motor skills

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5
Q

what does the midbrain do

A

process info from sensory neurons

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6
Q

what is corpus callosum and what do they do

A

-nerve fibres that connect right and left hemispheres

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7
Q

what is the medulla oblongata and what does it do

A

-top of brain stem, connects brain with spinal cord

-coordinates automatic functions (breathing, swallowing,heart rate, etc.)

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8
Q

what is the hypothalamus and what does it do

A

-link between nervous system and endocrine system

-coordinates pituitary gland

-regulates emotion, body temp, heart rate

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9
Q

what is the thalamus and what does it do

A

-relay station between forebrain and hindbrain

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10
Q

what is the pons and what do they do

A

relay centre between right and left halves of cerebrum

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11
Q

what is the cerebral cortex and what does it do

A

-thin outer layer covering grey matter
-receive and integrate sensory info
-responsible for language, memory, personality

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12
Q

what is the blood brain barrier

A

-layer of glial cells and blood vessels
-separates blood from the CNS
-controls entrance of substances into the brain

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13
Q

what does the left brain hemisphere control

A

language, emotion, logic

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14
Q

what does the right hemisphere of the brain control

A

music, art, and spacial

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15
Q

what is the frontal lobe

A

-thinking
-memory
-movement

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16
Q

what is the parietal lobe

A

-sensory info
-body positioning

17
Q

what is the temporal lobe

A

-visual info
-audio

18
Q

what is the occipital lobe

A

-visual info

19
Q

how does meth affect neuron transmission

A

-meth causes the brain to release excess amounts of dopamine
-usually dopamine is reabsorbed into cells but meth blocks this process
-dopamine stays in the brain
-the excess dopamine overloads the systems making it hard for neurons to communicate