Sensory Nervous System (EYES) Flashcards

1
Q

perception

A

identifying, organising + interpreting sensory info

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2
Q

teleception

A

far away sensory
- hearing
- sight
- smell (olfactory)

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3
Q

exteroception

A

direct contact
- skin
- pain
- taste (gustatory)

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4
Q

proprioception

A

self movement

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5
Q

interoception

A

internal state of body

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6
Q

brain parts for sight

A
  • parietal lobe
  • occipital lobe
  • temporal lobe
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7
Q

4 functions of sight

A
  1. qualitative
  2. quantitative
  3. temporal
  4. spatial
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8
Q

pupils constrict when

A
  1. light change (brighter lights)
  2. accommodation (object from far away comes closer)
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9
Q

retina what does it do

A
  • innermost part of the eye
  • sees things inverted
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10
Q

process of sight

A
  1. photoreceptors
  2. bipolar cells
  3. ganglion cells
  4. optic nerve
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10
Q

blind spot

A
  • area you can’t see because there aren’t any rods or cones
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11
Q

2 photoreceptors

A
  1. rods
  2. cones
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12
Q

rods definition

A

light receptors
- highly sensitive
- use rhodopsin (violet)

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13
Q

cones definition

A

colour receptors

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14
Q

different colour receptors in cones

A
  • L cones ; red
  • M cones; green
  • S cones; blue
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15
Q

partial decussation

A

optic nerve fibres cross

16
Q

photopic vision

A

vision in well-lit places
- done by cones
- high visual acuity
- high temporal resolution

17
Q

scotopic vision

A

vision in dark places
- done by rods
- low visual acuity
- low temporal resolution

18
Q

Purkinje effect

A

rods can only perceive blue light so reds appear darker

19
Q

accommodation process

A

optical power change to keep clear focus on object with ciliary body

20
Q

depth perception

A

seeing things in 3d

21
Q

physiological nystagmus

A

involuntary, jerky eye movement

22
Q

myopia

A

light focuses in front of retina

23
Q

far sightedness

A

light focuses behind retina

24
Q

cataract

A

cloudy area in lens that blurs vision