Special senses

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  • Created by: AbzzStarr
  • Created on: 19-05-17 13:22
What is the function of the organ of corti?
To convert sound vibrations to electrical impulses
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What fills the chambers of the bony labyrinth?
Perilymph
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What fills the membranous labyrinth?
Endolymph
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What do the receptor cells of the macula do?
Monitor the position of the head when it's still
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Where can you find the semi-circular canals?
Vertical plane
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What causes Meniere's syndrome?
Too much endolymph
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Where are the photoreceptors in the eye?
Retina
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What are the fluids of the eye called?
Humors
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What seperates the internal cavity into anterior and posterior segments?
Lens
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Other than protection, what is the role of the fibrous tunic?
Anchors extrinsic muscles
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What does the cornea do?
Let light into the eye
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What muscles constrict the pupil?
Circular
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What muscles dilate the pupil?
Radial
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What two layers form the membrane of the retina?
Pigmented & neural
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Where is the 'blind spot' on the retina?
Optic disk
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Where are the cones concentrated?
Macula lutea & Fovea centralis
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Which photoreceptor responds to dim light using the pigment rhodopsin?
Rods
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Roughly how many taste buds do humans have?
10,000
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What structures hold the taste buds?
Papillae
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How long do gustatory (taste) cells live?
About a week
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What elicits the Umami taste sensation?
Amino acid
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What must a chemical touch in order to be tasted?
Gustatory hairs
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What can we taste in the smallest amounts?
Bitter chemicals
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What is the organ of smell?
Olfactory epithelium
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What is the only type of sensory stimulation that reaches the cortex directly?
Olfactory
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Other cards in this set

Card 2

Front

What fills the chambers of the bony labyrinth?

Back

Perilymph

Card 3

Front

What fills the membranous labyrinth?

Back

Preview of the front of card 3

Card 4

Front

What do the receptor cells of the macula do?

Back

Preview of the front of card 4

Card 5

Front

Where can you find the semi-circular canals?

Back

Preview of the front of card 5
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