nervous system Flashcards

(40 cards)

1
Q

what’s the basic structural unit of the nervous system?

A

neuron

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2
Q

whats the tree layers of meninges?

A

dura mater, arachnoid mater, pia mater

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3
Q

whats the function of the meninges?

A

surround neuraxis and are protective tissue

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4
Q

what are the two functions of cerebrospinal fluid?

A
  • provide pathway for removal of metabolites from brain extracellular fluid into venous
  • maintain normal internal pressure
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5
Q

paraplegia?

A

impairment in motor/sensory functions of the lower extremities, damage to Nervin in the body

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6
Q

Encephalitis?

A

Inflammation of the brain, often due to infection

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7
Q

Hyporocephalus

A

A buildup of fluid in the cavities deep within the brain

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8
Q

Neuralgia

A

Intermittent pain along course of nerve, specially in head and face

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9
Q

Cerebrovascular accident

A

Damage to brain from interruption of blood supply

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10
Q

Epilepsy?

A

Nerve cell activity in the brain is disturbed causing seizures

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11
Q

Cerebral palsy

A

Congenital disorder of movement, muscle tone, posture

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12
Q

Parkinson’s disease?

A

Disorder of the central nervous system that affects movement, often including tremors

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13
Q

Amyotrophic lateral sclerosis

A

Weakness in muscles and impact physical function

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14
Q

What does the peripheral nervous system consists of

A

Consists of nerves, Automic nervous system

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15
Q

What does the somatic nervous system consists of

A

12 pairs of cranial nerves and 31 pairs of spinal nerves

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16
Q

What does the sympathetic nervous system have to do with heart rate

A

Increases it

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17
Q

What does the sympathetic nervous system have to do with respiration

18
Q

What does the sympathetic nervous system have to do with blood pressure

19
Q

What does the sympathetic nervous system have to do with digestive activity

20
Q

What does parasympathetic nervous system have to do with heart rate

21
Q

What does parasympathetic nervous system have to do with respiration

22
Q

What is homeostasis?

A

Property of assistive are verbals regulate so that conditions remain stable and relatively consistent

23
Q

What’s the basic unit of Communication in the nervous system

24
Q

Why are neurons insulated

A

Your insulated because it protects them and allow signals to move faster without it signals from the brain wouldn’t reach the brain

25
Explain a synapse and it's relation to a neurotransmitter
It's a space that electrical signals is converted into chemical signals
26
whats an axon?
caries info away from cell body
27
whats a cell body?
Biosynthetic center of neuron
28
whats a nerve cell?
basic unit of communication/carries messages
29
where dose cerebrospinal fluid circulate?
in the brains ventricles
30
whats the function of CSF?
fills hallow spaces called ventricles
31
what would happen if you had cerebrospinal fluid?
brain would crush under its own weight without it
32
what are the meninges?
dura, arachnoid, pia
33
cerebrum?
controls conscious through thinking
34
frontal?
voluntary muscles and judgment
35
parietal?
sensory functions
36
occipital?
vision
37
temporal?
hearing, emotion, memory, smell
38
cerebellum?
controls balance and coordination
39
diencephalon?
no
40
whats the fuction of the spinal cord ?
carries msg between CNS and body