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EXCI 254 > Nervous system > Flashcards

Nervous system Flashcards

1
Q

role of neural of glial cell

A

glue that stick all system together

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2
Q

role of neutron

A

fonction unit of system

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3
Q

role of sensory neurone

A

detect change

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4
Q

role of motor neurone

A

transport info

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5
Q

3 mains function of nervous system

A

sensory info
intégrative function
motor function

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6
Q

sensory function carry info to via

A

carry to brain via sensory (afferent) neurone

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7
Q

what are the 2 type of change detect in sensory function + exemple

A

internal stimuli: change in blood glucose + vitamin level
external stimuli: change in
Temp or someone hit you

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8
Q

where does integrative info occurs

A

brain and spinal cord

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9
Q

role of integrative function

A

Processing of sensory information
• Analyzing and making decisions regarding appropriate
responses

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10
Q

name of neurons that do the integrative function

A

interneurons

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11
Q

role of motor function

A

Responding to integration decision,

Carry information out of the brain and spinal cord

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12
Q

neurone that do motor function are _

A

motor efferent neurons

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13
Q

explain the ans

A

regulate internal environment. carries info from cns to organ blood vessel glands

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14
Q

the ANS divides into what

A

sympathetic and parasympathetic

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15
Q

explain sympathetic

A

arouses the body, activate during high stress situation

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16
Q

explain parasympathetic

A

calms after arousal, during sleeping

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17
Q

explain somatic nervous system

A

carries info to cns from sens and from cns to skeletal muscle only

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18
Q

which division of the PNS is only responsible for the skeletal muscle only

A

somatic

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19
Q

role of CNS

A

Processing and integrating of sensory information
• Planning and coordinating responses to stimuli
• Providing short term control over activities of other systems

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20
Q

what is the control center for the entire NS

A

cns

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21
Q

the cns is where

A

brain and spinal cord

22
Q

what is the neural tissue outside of cns

A

pas

23
Q

what links CNS with sens organs and other system

A

PNS

24
Q

cranial nerve in pns emerge from where

A

brain

25
Q

spinal nerve in pns emerge from where

A

spinal cord

26
Q

most of nerve in pns contains 2 type of what

A

sensory: going toward
motor: going back out
Nerves have an afferent and efferent division

27
Q

role of pns

A

Links CNS with sense organs and other systems

28
Q

what are the 2 divisions of the efferent portion of pns

A

SNS and ANS

29
Q

where does sensory neurone in SNS covey info

A

Sensory neurons convey information from cutaneous and special sense receptors primarily in the head, body wall and extremities

30
Q

what are the 2 type of skeletal muscle contraction in sos

A

voluntary and involuntary

31
Q

pathway of sns

A

only one sequence of motor neuron

32
Q

role of ans

A

control visceral functions

Regulate smooth muscle, cardiac muscle, and glandular activity

33
Q

what type of muscle contraction is the ANS

A

involuntary

34
Q

pathway of ans

A

2 sequences of neurons
1st MN quit and than synapse in a ganglion outside , than a 2nd motor neuron go to the effector

the parasympathetic preglanglion is always myelinise and the postglanglionic neurone is always unmyletinated

35
Q

where does sensory neurons bring info in ans

A

Sensory nrs convey homeostatic information from receptors primarily in the viscera to the CNS

36
Q

where does motors neurons conduct impulse in ans

A

Motor nrs conduct impulses to smooth muscle, cardiac muscle and glands

37
Q

what are the 2 main type of cell in the nervous system + explain

A

neurons (nerve impulse conduction) and neuroglia (support and protect NS)

38
Q

what are the type of neuroglia (glia cells) in cns

A

Astrocytes
Oligodendrocytes
• Microglia
• Ependymal cells

39
Q

explain astrocyte

A

provide a barrier by wrapping around artery that supply the brain so it only allows the nutrient from blood to get through. Block all toxine and waste

40
Q

explain microglia

A

remove cell tissue damage, clean area around nervous tissue

41
Q

explain ependymal cells

A

found around ventricle. Produce CSF, help protect ventricle from getting toxic substance

42
Q

which neuroglia isfound around ventricle. Produce CSF, help protect ventricle from getting toxic substance

A

ependymal cells

43
Q

role of oligodendrocytes

A

form myelin

44
Q

which neurogliaremove cell tissue damage, clean area around nervous tissue

A

microglia

45
Q

which neurogliaprovide a barrier by wrapping around artery that supply the brain so it only allows the nutrient from blood to get through. Block all toxine and waste

A

astrocyte

46
Q

which neuroglia form myelin

A

oligodendrocyte

47
Q

what are the neuroglia found in PNS

A

satellite cells and Schwann cells

48
Q

function of satellite cells

A

found around cell body (soma), protect nourish cell body of pns

49
Q

which type of neuroglia is found around cell body (soma)

A

satellite cells

50
Q

which system is engage as soon as we think of food

A

enteric nervous system (ens)

EXCI 254 (10 decks)

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