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Anatomy/Physiology I > Sensory Nervous System > Flashcards

Sensory Nervous System Flashcards

1
Q

Mechanoreceptors

A

Detect stretching and pressure

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2
Q

Thermoreceptors

A

Detects tempature inside and outside the body

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3
Q

Nociceptors

A

Chemicals released when tissue is damaged and pain

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4
Q

Chemoreceptors

A

Detects changes in chemical concentrations in body

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5
Q

Photoreceptors

A

In retinal layer of eye that detects lights

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6
Q

Sensory nerve

A

Transmits potentials to the brain

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7
Q

Somatic senses

A

Tactile sensations like touch, pressure, vibration, itch and tickle

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8
Q

Meissner’s corpuscles

A

Light touch

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9
Q

Merkels corpuscle

A

Touch and light pressure

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10
Q

Free nerve endings

A

Pain, temperature and light touch

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11
Q

Pacinian corpuscle

A

Deep touch deep pressure and fast vibrations

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12
Q

Ruffini corpuscle

A

Sustained pressure

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13
Q

Chemoreceptors

A

5 types: Sweet salty sour bitter and umami (bitter is most sensitive)

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14
Q

Cranial nerves involved in taste

A

VII and IX

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15
Q

Chemoreceptors

A

Olfaction or smell and cranial nerve I and to the limbic system and linked to emotions and memories

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16
Q

Palpebrae

A

Eyelids

17
Q

Conjunctiva

A

Mucus membrane that covers inner surface of the eyelid

18
Q

Lacrimal apparatus

A

Ducts that produce tears

19
Q

Extraocular muscles

A

Muscle that controls movement of the eye

20
Q

Meibomian glands

A

Produce oil that lubricates the eye

21
Q

The fibrous tunic of eye

A
  • protective layer of eye
  • sclera: white protective layer
  • cornea: anterior part of fibrous tunic
  • cornea
22
Q

The vascular tunic of eye

A

Middle pigmented layer

  • contains choroid and ciliary
  • iris
23
Q

The neural tunic

A

Innermost layer of eye and contains photoreceptors

- retina

24
Q

Outer ear

A
  • pinna
  • external auditory canal
  • funnel to direct soundwaves
25
Q

Middle ear

A
  • tympanic cavity that vibrates when sound waves hit it
  • malleus is first bone
  • incus is middle
  • ossicles
26
Q

Inner ear

A

Labyrinth bony chamber that is filled with fluid

  • cochlea
  • perilymph
  • semicircular canals
  • vestibular
27
Q

Myopia

A

Nearsightedness (cannot see far away)

28
Q

Hyperopia

A

When the eyeball is too short and near vision is affected

Anatomy/Physiology I (11 decks)

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