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Anatomy > W3 nervous system > Flashcards

W3 nervous system Flashcards

1
Q

what is the CNS made of

A

brain
spinal cord

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2
Q

what is the PNS made of

A

autonomic NS
somatic NS

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3
Q

what is the autonomic NS

A

sympathetic + parasympathetic NS

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4
Q

what’s the 3 function of CNS

A

takes info from environment
motor response
store sensory info

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5
Q

how many cranial nerves in PNS

A

12

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6
Q

how many spinal nerves in PNS

A

31

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7
Q

where does the sensory PNS take info to

A

periphery to CNS

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8
Q

where does the motor PNS take info to

A

CNS to periphery

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9
Q

what is the somatic NS

A

control of skeletal muscles

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10
Q

what is autonomic NS

A

control of heart and blood vessel

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11
Q

which vertebrae level are the sympathetic nerves found

A

T1-L2

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12
Q

which vertebrae level are the parasympathetic nerves found

A

S2-S4

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13
Q

what’s the diff between motor and sensory neurone

A

cell body in sensory is separate from dendrite

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14
Q

where is somatic system distributed to

A

musculoskeletal and skin

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15
Q

where is visceral system distributed to

A

organs

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16
Q

what is white matter in spinal cord

A

collection of axon fibres

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17
Q

where is white matter in spinal cord

A

lies superficial in deep places

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18
Q

how many cervical nerves are there

A

8

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19
Q

how many thoracic nerves are there

A

12

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20
Q

how many lumbar nerves are there

A

5

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21
Q

how many sacral nerves are there

A

5

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22
Q

how many coccygeal nerves are there

A

1

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23
Q

where do the spinal nerves bunch togethether and what is it called

A

below L2/3 called cauda equina

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24
Q

what are the 3 meninges layers

A

dura mater
arachnoid mater
pia mater

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25
Q

what separates the left and right cerebral hemispheres

A

falx cerebri

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26
Q

what is a dermatone

A

area of skin which receives sensory supply from 1 spinal nerve

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27
Q

what is a myotone

A

group of muscles controlled by a spinal nerve

28
Q

what is C4

A

shoulder

29
Q

what is C6

A

thumb

30
Q

what is C7

A

middle finger

31
Q

what is C8

A

little finger

32
Q

what is T4

A

nipples

33
Q

what is T10

A

umbilicus

34
Q

what is L1

A

inguinal

35
Q

what is L3

A

medial knee

36
Q

what is L5

A

big toe

37
Q

what is S1

A

little toe

38
Q

what is S3

A

gluteal

39
Q

what is S5

A

anal canal

40
Q

whats the role of spinal tracts

A

neural pathways which carry info

41
Q

whats the role of the ascending spinal tract

A

carry sensory info from the periphery

42
Q

whats the role of the descending spinal tract

A

carry motor info

43
Q

what is the job of DCML

A

fine touch sensory

44
Q

what is the job of spinothalamic tract

A

carry pain

45
Q

what is the job of corticospinal tract

A

voluntary motor function

46
Q

what is decussation

A

crossing spinal tracts from 1 side of brain/spinal cord to another

47
Q

where does the spinothalamic tract decussate

A

level of spinal cord

48
Q

where does the DCML decussate

A

medulla oblongata

49
Q

where does the corticospinal tract decussate

A

spinal cord and medulla

50
Q

what level is the cervical plexus

A

C1-C5

51
Q

what level is the brachial plexus

A

C5-T1

52
Q

what level is the lumbar plexus

A

L1-L4

53
Q

what level is the sacral plexus

A

L4-S4

54
Q

what does it mean when the brain gyrus

A

folds outwards

55
Q

what does it mean when the brain sulcus

A

folds inwards

56
Q

what is the longitudinal fissure of the brain

A

midline of the brain

57
Q

what is the cerebrum made of

A

frontal lobe
temporal lobe
occipital lobe
parietal lobe

58
Q

whats the left side of the brain for

A

analytical thinking

59
Q

whats the right side of the brain for

A

emotions

60
Q

whats the broca area for

A

language

61
Q

whats wernickes area for

A

understanding language

62
Q

what are the 4 arteries which supply blood to your brain

A

Right Internal Carotid Artery
Left Internal Carotid Artery
Right Vertebral Artery
Left Vertebral Artery

63
Q

what do the 4 arteries that supply brain blood form

A

circles of willis

64
Q

where does the venous drainage of the brain

A

transverse sinus to jugular vein

65
Q

what is the role of the cerebellum

A

fine movement and posture

66
Q

what does the central sulcus divide

A

post and pre central gyruses

Anatomy (11 decks)

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