CNS Flashcards

(40 cards)

1
Q

CNS is located where

A

Brain, spinal cord

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2
Q

The brainstem is composed of… (3)

A
  1. Medulla
  2. Reticular Formation
  3. Pons
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3
Q

Medulla

A

automatic natural things ex; Heartbeat, blood pressure, coughing

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4
Q

Reticular formation

A

attention and alertness

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5
Q

Pons

A

Body movement, sleep/dreaming, (ex: sitting = posture kept)

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6
Q

CNS is composed of…. (4)

A
  1. Brainstem
    - medulla, resticular formation, pons
  2. Cerebellum
  3. Thalamus
  4. Hypothalamus
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7
Q

Hypothalamus

A

Regulator- fight flight food Fuck

Does not regulate pressure, h-rate, breathing

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8
Q

Cerebellum (4)

A

Little brain

  • Permits smooth graceful movement and coordination
  • two hemispheres
  • deffective while intoxicated
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9
Q

Thalamus

A

Relay sensory information between lower and higher brain areas

Traffic controller !

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10
Q

Limbic system components (2)

A
  • Amygdala
  • Hippocampus
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11
Q

Amygdala

A

Part of the limbic system

Emotion related to survival (Fear)
- you remember intense memories

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12
Q

Hippocampus

A

Part of the limbic system

Creates new memories (save button)

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13
Q

If there is damage to the hippocampus…

A

You can’t form new memories, you only have your own memories

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14
Q

Components of the cerebral hemisphere (2)

A
  1. Cerebral cortex
  2. Corpus callosum
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15
Q

(2)
Cerebral cortex

A

2: hemispheres for higher mental processes

Language thinking memory perception

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16
Q

Corps callosum

A

Bridge between right and left hemispheres of cerebral cortex

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17
Q

Lobes of the brain (4)

A
  • frontal lobe
  • parietal lobe
  • Occipital
  • Temporal
18
Q

Frontal lobe (5)

A

Controls Motor, plan, impulse, emotion, special language center (Brocas, wernicke)

19
Q

Parietal

A

Somatosensory: touch,

20
Q

Occipital

A

Primary visual cortex

21
Q

Special language center

A

Brocas area: speech production, left frontal lobe

Wernickes: speech comprehension left temporal lobe

22
Q

Left hemisphere

A

Language, mathematics, analytical, sequential

Controls right body, right visual field

23
Q

Right hemisphere

A

Music, Visual spatial,using, creativity, and expression of emotion

Controls left body, Visual fields too

24
Q

Left hemisphere tissue is devoted to…

A

Each body part

25
Split brain
No corpus callosum
26
If somone with split brain is presented something in their left visual field it will be processed in
The right hemisphere (non verbal), I saw nothing , but could draw it or could choose with hand
27
If somone with split brain is presented something in their right visual field it will be processed in
The left hemisphere, they can say I saw an apple
28
Multiple concussions or head trauma Symptoms and diseases associated
Symptoms : headaches, mood disorders, personality changes, memory loss Disorders: Alzheimer’s, Parkinson’s, ALS or CTS
29
Scanning techniques (7)
EEG CT MRI PET FMRI MEG TMS
30
EEG
function Électroencéphalogramme: measure global electrical activity
31
CT
X-rays of brain structure
32
MRI
structure Uses magnetic fields for brain image via hydrogen atoms - big detail =$$
33
PET
Function Tracks metabolism of goucose
34
FMRI
Function Measures oxygen usage over time
35
MEG
Function Detects magnetic fields from neural activity
36
TMS
Function Uses magnetic pulses to stimulate or inhibit brain : neurons
37
Plasticity (3)
The ability of the brain to reorganize and compensate brain damage If the brain is damaged we’ll rearrange ourselves and adapt The older you are the harder it is to recover
38
Plasticity components
Reorganize (sensory loss and phantom limb) Recovery after brain damage (Phineas Gage, hemispherectomy) Growth in neural pathways (language spatial navigation) Uncontrollable seizures ; half the brain=cause? Removable- not recommended
39
Temporal lobe
Auditory
40
taste and smell are processed in
frontal lobe