brain Flashcards

1
Q

cns is composed of what

A

brain

spinal cord

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2
Q

what are the 5 major divisions of the brain

A
cerebrum
diencephalon
basal ganglion
brainstem
cerebellum
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3
Q

what is the brain composed of

A

grey matter

,white matter

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4
Q

what is grey matter

A

cell bodies

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5
Q

what is white matter

A

myelinated nerve fibers

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6
Q

what are the brain lobes

A

frontal
temporal
occipital
parietal

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7
Q

what does the frontal lobe control

A
  1. intellectual function
  2. awe of self, personality
  3. autonomic responses related to emotion
  4. primary motor function for voluntary motor activity
  5. broca’s area
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8
Q

where is the broca’s area located

A

frontal lobe

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9
Q

where is the motor cortex (voluntary movement)

A

frontal lobe (back band)

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10
Q

what is the parietal lobe control

A

sensory info such as body position, shape and texture of objects

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11
Q

where is the sensory cortex located

A

parietal lobe (front band)

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12
Q

what does the temporal lobe controll

A
  1. written language

2. interprets auditory, visual and somatic sensory inputs that are stored in thoughts and memories

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13
Q

which lobe in the intellectual area

A

frontal- awareness of self! this is why humans are special

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14
Q

what is the wernicke’s area responsible for

A

comprehension of written ans spoken language

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15
Q

what is the broca’s area responsible for

A

actually speaking language

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16
Q

where is the wernicke’s areas located

A

temporal lobe

17
Q

what is the occipital lobe responsible for

A
  1. primary visual input area

2. interprets visual info

18
Q

what are the substructurs of the diencephalon

A

thalamus
hypothalamus
epithalamus
subthalamus

19
Q

what does the thalamus do

A

relay and integration station from spinal cord to brain

20
Q

what does the hypothalamus do

A

HOMEOSTASIS

  1. regulation of temp
  2. hunger/ thirst
  3. formation of autonomic responses
  4. storage and secretion of hormones from pituitary gland
21
Q

what does the epithalamus do

A
  1. contains pineal gland which causes sleepiness

2. regulates some endocrine functions

22
Q

what does the subthalamus do

A

pert of the extrapyramidal system of autonomic nervous system and basal ganglia

23
Q

what is affected with someone with parekinsons

A
  1. the extraparmidal system which has to do with balance and coordination
  2. substantia nigra
24
Q

where is the basal ganglia located

A

between cerebral cortex and midbrain adjacent to diencephalon

25
what are the 3 components of the brainstem
midbrain pons medulla oblongata
26
what is the purpose of the cerebellum
1. coordinating movement, equilibrium, muscle tone and proprioception
27
if the right side of the cerebellum is damaged, movement of which side will be affected
right, same side damage- does not cross over
28
the spinal cord has how many segments
31 segments- each giving rise to a pair of spinal nerves
29
where does the spinal cord branch to lumbar and sacral
l1 and l2
30
what is the spinal cord
continuation of the MO
31
where does the spinal cord begin
at the foramen magnum and ends at the first and second lumbar vertebrae
32
ascending sensory tracts to to what
the thalamus to parietal lobe
33
cranial nerves are part of which system
peripheral nervous system