All about the brain Flashcards

1
Q

Soma

A

Nucleus

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2
Q

Axon

A

Sending impulses down neuron

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3
Q

Myuclin Sheeth

A

Protect cell & Speed up messages

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4
Q

Node of Ranvier

A

Maintains speed

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5
Q

Dendrites

A

Detects messages

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6
Q

Terminal

A

Transmit info

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7
Q

Sensory neurons

A

Sense info (afferent)

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8
Q

Motor neuron

A

Allows us to move (efferent)

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9
Q

Interneuron

A

Spinal cord

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10
Q

Terminal Button

A

Contain synthetic vessels

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11
Q

Synthetic Bessels

A

Hold nerons

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12
Q

Excitatory NT

A

Allows next neuron to fire

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13
Q

Acetylcholine

A

Controls muscle movement, learning, and memory

Too much- muscle weakness
Too little- Alzheimers

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14
Q

Dopamine

A

Emotion & reward system

Too much- Schizophrenia
Too little- Parkinsons

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15
Q

Norepinephrine

A

Fight or flight response

Too much- anxiety
Too little- depressed mood

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16
Q

Glutamate

A

Excitatory NT & memory

Too much-Migraines/seizures
Too little- ADHD like syptoms

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17
Q

Inhibitory NT

A

Stop/prevent a neural impuls

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18
Q

GABA

A

Help calm down

Too much- Shortness of breath & numbness
Too little- Tremors & insomnia

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19
Q

Serotonin

A

Regulate mood, hunger, and sleep

Too much- Muscle stiffness & seizures
Too little- Depression

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20
Q

Peripheral NS

A

Outside

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21
Q

Autonomic

A

Automaticly

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22
Q

Somatic

A

Volentary

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23
Q

Sympathetic NS

A

Fight or Flight

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24
Q

Parasympathetic

A

Help relax the body

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25
CNS
Main decision maker
26
Pituitary gland
Master gland
27
Adrenal
Kidney - Adrenaline
28
Thyroid
Neck - Metabolism
29
Pancreas
Liver - Blood sugar
30
Parathyroid
Neck - Calcium
31
Ganads
Testi/ovary - Testosterone/Estrogen
32
Brain Stem
Automatic survival functions
33
Medulla
Breathing & heart rate
34
Pon
Coordinates movement & sleeping/dreaming
35
Reticular formation
Nerve network & attention
36
Thalamus
Sensory control center relays sensory info (not smell)
37
Cerebellum (little brain)
Balance & coordination, fine motor skills, implicit memories
38
Limbic system
Associated with emotion
39
Amygdala
Anger, fear, aggression, emotional memory
40
Hypothalamus
(F5) Flight, Fight Fahrenheit, Feeding, & Fornicate
41
Hippocampus
Explicit memory formation & long term memory
42
Basal ganglia
Voluntary movements & habits
43
Pituitary gland (master gland) Part 2
Directs other glands in endocrine system & controlled by hypthalamus
44
Cerebral cortex
Allows us to think, process info & make decisions
45
Frontal lobes
Info processing decision making, judgment planning, personality
46
Parietal lobe
Body sensation interprets visual info language & math processing
47
Occipital lobe
Vission
48
Temporal lobe
Center for hearing
49
Motor cortex
planning control & execution voluntary movment
50
Somatosensory cortex
Perception of all senesation
51
Corpus callosum
Connects the 2 hemispheres in the brain
52
Visual cortex
Processes visual info
53
Auditory cortex
Processes auditory info
54
Brocas
Speach
55
Wernickes area
Understanding speech & making meaning full sentences
56
EEG
- Find function - Via electrical signals - Only good for sleep & seizures
57
CT
- Find the structure - Via X-rays - good for lesions
58
PET
- Find the function | - Radioactive glucose
59
MRI
- Find the structure | - Via magnets
60
FMIR
- Find the function & structure | - Via magnets & oxidized blood
61
Neuroplasticity
Is the ability of the brain to modify its connections or rewire itself.
62
Split-brain syndrome
Cutting the corpus callosum to alleviate epileptic seizures
63
Positive of a split-brain
Allows people to use 2 hemispheres to complete an independent task
64
Basket + Ball
``` Right- human faces - can't say basket - draw basket -left hand --------------------------------------------------------- Left- language - could say & draw the ball - right hand ```