brain and nervous system Flashcards

1
Q

nervous system consists:

A

CNS and PNS

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2
Q

CNS consists of:

A

brain and spinal cord

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3
Q

PNS consists of:

A

Somatic and Autonomic

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4
Q

Autonomic consists of:

A

Sympathetic and parasympathetic

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5
Q

PNS

A

transmitting information to and from the CNS, everything besides the brain or spine

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6
Q

Somatic nervous system

A

muscle movements

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7
Q

autonomic nervous system

A

regulates glands and internal organs, without having to think about it

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8
Q

sympathetic nervous system

A

mobilizes body for action in preparation of stimulus

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9
Q

parasympathetic nervous system

A

conserves energy for our body in preparation to move

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10
Q

neurons communicate with each other with:

A

neurotransmitters (refractory period)

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11
Q

glial cells

A

support the neuron, helps with nutrient and maintenance of nerve cells

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12
Q

synapses

A

space in-between neurons to relay signal

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13
Q

serotonin

A

role in mood, sleep, impulse control

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14
Q

dopamine

A

movement and fine motor skills

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15
Q

what results from too much dopamine

A

schizophrenia

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16
Q

what results in too little dopamine

A

parkinson’s disease

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17
Q

acetylcholine

A

voluntary movements, learning and memory

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18
Q

what results from too much acetylcholine

A

depression

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19
Q

what results from too little acetylcholine

A

dementia

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20
Q

norepinephrine

A

eating and alertness

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21
Q

too little norepinephrine causes

A

depression

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22
Q

too much norepinephrine causes

A

schizophrenia

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23
Q

GABA

A

inhibitor, alerts CNS

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24
Q

too little GABA causes

A

mood disorders

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25
too much GABA causes
anxiety
26
glutamate
memory and over-stimulation
27
endorphins
pain relief, released when we hurt ourselves or during exercise
28
what makes up the hindbrain
medulla, pons, cerebellum
29
medulla
breathing and heart rate, critical to life!
30
pons
sleeping and dreaming
31
cerebellum
balance and coordinated muscle movements, where alcohol hits first (hence police test your balance and coordination for sobriety tests)
32
RAS
Reticular activating system, administrative assistant of the brain, prioritizes messages and stimuli
33
Thalamus
passes motor and sensory signals on to the cerebral cortex
34
limbic system includes:
hypothalamus, amygdala, hippocampus
35
hypothalamus
biological drives, link between endocrine and nervous systems, initial reward center located here
36
amygdala
fear and aggressive responses
37
hippocampus
memory transfer function, where short term memory is transferred to long term
38
corpus callosum
band of tissue connecting right and left hemisphere (split brain surgery severs this)
39
basal ganglia
voluntary muscle movements
40
cerebrum
all higher functioning (reasoning, language, thinking)
41
cerebral cortex
brains control center, primary and non-primary areas
42
somatosensory cortex
primary area, all senses except smell, registers body touch and movement sensations
43
motor cortex
primary area, motor functions/voluntary movements
44
association area/non-primary areas in the cerebral cortex
bigger than primary, studied by observing people with existing lesions in the brain
45
Apraxia
problems with movements (especially coordinated) (ex. not being able to swiftly pack up and leave for class w/o thinking about it)
46
agnosia
disorders in sensory stimulation (ex. not being able to recognize faces)
47
aphasia
language disorders (receiving, understanding, processing information)
48
expressive aphasia (non-fluent)
damage to broca's area, disability to express oneself in productive communication
49
receptive aphasia (fluent)
damage to wernicke's area, don't receive/understand language but can talk grammatically correct
50
lateralization
how both hemispheres of the brain do and receive different information
51
left hemisphere of the brain
language reception
52
right hemisphere of the brain
making inferences and facial recognition
53
everything psychological is also
biological
54
4 lobes in brain
frontal, pariental, occipital, temporal
55
frontal lobe
speaking and movements
56
pariental lobe
sensory
57
occipital lobe
receive information from visual fields
58
temporal lobes
receive information from opposite ear
59
the lower brain structure that governs arousal is the
reticular formation
60
a cat's ferocious response to electrical brain stimulation would lead you to suppose the electrode had touched the
amygdala
61
fMRI
measures function
62
PET
measures activity
63
MRI
measures activity
64
neuroplasticity
brains ability to change and adapt to certain circumstances