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Biology 242 Midterm > General Senses > Flashcards

General Senses Flashcards

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1
Q

Stimulus

A

first event in sensation detection

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2
Q

Transduction

A

receptor receives stimulus and changes it into a receptor potential (and possibly an AP)

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3
Q

Conduction

A

AP along sensory neuron to CNS

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4
Q

Integration

A

within CNS, interpretation/awareness of sensation

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5
Q

Projection

A

brain refers sensations to their learned point of origin

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6
Q

Adaptation

A

stimulus is the same, but sensitivity changes

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7
Q

Afterimage

A

stimulus is gone, but sensitivity still present

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8
Q

Modality

A

each receptor is only sensitive to its own stimulus

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9
Q

Receptive field

A

stimulus only able to stimulate receptor within a certain range

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10
Q

Mechanoreceptors (7)

A
  • free nerve ending
  • type I Cutaneous Mechanoreceptor (tactile disc)
  • Corpuscle of touch (Meissner corpuscle)
  • type II cutaneous mechanoreceptor (ruffini corpuscle)
  • hair root plexus
  • lamellated (pacinian) corpuscle
  • Meissner corpuscle
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11
Q

Free Nerve Ending

A

senses pain, itch, tickle, cold, and warmth

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12
Q

type I cutaneous mechanoreceptor (tactile disc)

A

senses find touch and pressure

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13
Q

type II cutaneous mechanoreceptor (Ruffini corpuscle)

A

sense crude touch and stretching of skin

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14
Q

corpuscle of touch (meissner corpuscle)

A

senses find touch, pressure, and slow vibration

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15
Q

hair root plexus

A

senses crude touch

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16
Q

lamellated (pacinian) corpuscle

A

senses pressure and fast vibration

17
Q

Meissner corpuscle

A

corpuscle of touch

18
Q

Proprioceptors

A

muscle Spindle and GTO

19
Q

Receptor Locations (3)

A

exteroceptors
interoceptors
proprioceptors

20
Q

exteroceptors

A

body surface, skin, smell, vision

21
Q

interoceptors

A

felt as pain or pressure

22
Q

proprioceptors

A

muscle spindle, tendon organ, joint kinesthetic receptors

23
Q

Type of stimulations (5)

A
  • mechanoreceptors
  • thermoreceptors
  • nociceptors
  • photoreceptors
  • chemoreceptors

Biology 242 Midterm (11 decks)

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