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Brain and Behaviour > Human nervous system > Flashcards

Human nervous system Flashcards

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The Brain flashcards
1
Q

how many neurones in a human

A

100 billion

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2
Q

glial cells

A
  • don’t signal
  • maintenance roll
  • astrocytes, oligodendrocyte and microglial
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3
Q

astrocyte

A
  • maintain external environment of neurone
  • oligodendrocyte makes up myeline sheath
  • microglial activate during brain infection
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4
Q

neurone : glial

A

1:1

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5
Q

parts of CNS

A

spinal chord, brainstem (medulla, pons and midbrain), cerebellum and the forebrain (diencephalon and the cerebrum)

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6
Q

spinal chord divisions

A

cervical, thoracic, lumbar, sacral and coccygea

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7
Q

PNS

A

axons and nerve cells outside CNS

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8
Q

ganglia

A

accumulation of nerve cells and glial cells

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9
Q

sensory ganglia

A

dorsal root or cranial nerve send axons to specialised receptors to process stimuli

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10
Q

ANS

A
  • sympathetic : fight/flight
  • parasymp : rest/digest
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11
Q

Para

A

ganglia found in organ they innervate

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12
Q

symp

A

ganglia along vertebral column send axons to targets

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13
Q

enteric division

A

ganglia in wall of gut

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14
Q

gyri

A

convex convulsions

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15
Q

sulci

A

concavities between gyri

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16
Q

fissures

A

deep sulci

17
Q

cerebral cortex

A

continuous sheet of neurones around hemispheres

18
Q

division between frontal and parietal lobe, distinguishing motor and sensory cortices

A

central sulcus

19
Q

frontal lobe gyri

A
  • precentral : in motor cortex innervating skeletal muscles
  • orbital
  • superior, middle and inferior frontal gyri
20
Q

parietal lobe gyri

A
  • post-central : somatosensory cortex
  • angular : language, maths and attention
21
Q

division between frontal and temporal lobe

A

sylvian fissure

22
Q

superior temporal lobe

A

audition

23
Q

inferior temporal lobe

A

object recognition and high order visual information

24
Q

sagittal plane

A

splits into two hemispheres

25
Q

coronal or frontal plane

A

splits into front and back

26
Q

horizontal plane

A

splits into top and bottom

27
Q

anterior

A

back

28
Q

posterior

A

front

29
Q

dorsal

A

top

30
Q

superior

A

top

31
Q

ventral

A

bottom

32
Q

inferior

A

bottom

33
Q

basil ganglia

A
  • middle
  • made of caudate nucleus, putamen and globulus pallidus
34
Q

thalamus

A

sensory info except for smell
passes to cerebral cortex

35
Q

association tract

A

in hemisphere from one region to another

36
Q

comissure

A

cross hemisphere

37
Q

projection

A

brain to spinal chord

Brain and Behaviour (7 decks)

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