nervous system Flashcards

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

A

Increases it

18
Q

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

A

Increase it

19
Q

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

A

Decrease it

20
Q

What does parasympathetic nervous system have to do with heart rate

A

Decrease it

21
Q

What does parasympathetic nervous system have to do with respiration

A

Decreases it

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

A

Neurons

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
Q

Explain a synapse and it’s relation to a neurotransmitter

A

It’s a space that electrical signals is converted into chemical signals

26
Q

whats an axon?

A

caries info away from cell body

27
Q

whats a cell body?

A

Biosynthetic center of neuron

28
Q

whats a nerve cell?

A

basic unit of communication/carries messages

29
Q

where dose cerebrospinal fluid circulate?

A

in the brains ventricles

30
Q

whats the function of CSF?

A

fills hallow spaces called ventricles

31
Q

what would happen if you had cerebrospinal fluid?

A

brain would crush under its own weight without it

32
Q

what are the meninges?

A

dura, arachnoid, pia

33
Q

cerebrum?

A

controls conscious through thinking

34
Q

frontal?

A

voluntary muscles and judgment

35
Q

parietal?

A

sensory functions

36
Q

occipital?

A

vision

37
Q

temporal?

A

hearing, emotion, memory, smell

38
Q

cerebellum?

A

controls balance and coordination

39
Q

diencephalon?

A

no

40
Q

whats the fuction of the spinal cord ?

A

carries msg between CNS and body