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Flashcards in nervous system Deck (40):
1

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

neuron

2

whats the tree layers of meninges?

dura mater, arachnoid mater, pia mater

3

whats the function of the meninges?

surround neuraxis and are protective tissue

4

what are the two functions of cerebrospinal fluid?

- provide pathway for removal of metabolites from brain extracellular fluid into venous
- maintain normal internal pressure

5

paraplegia?

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

6

Encephalitis?

Inflammation of the brain, often due to infection

7

Hyporocephalus

A buildup of fluid in the cavities deep within the brain

8

Neuralgia

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

9

Cerebrovascular accident

Damage to brain from interruption of blood supply

10

Epilepsy?

Nerve cell activity in the brain is disturbed causing seizures

11

Cerebral palsy

Congenital disorder of movement, muscle tone, posture

12

Parkinson's disease?

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

13

Amyotrophic lateral sclerosis

Weakness in muscles and impact physical function

14

What does the peripheral nervous system consists of

Consists of nerves, Automic nervous system

15

What does the somatic nervous system consists of

12 pairs of cranial nerves and 31 pairs of spinal nerves

16

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

Increases it

17

What does the sympathetic nervous system have to do with respiration

Increases it

18

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

Increase it

19

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

Decrease it

20

What does parasympathetic nervous system have to do with heart rate

Decrease it

21

What does parasympathetic nervous system have to do with respiration

Decreases it

22

What is homeostasis?

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

23

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

Neurons

24

Why are neurons insulated

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