Wk 10 Special Senses Flashcards
What makes special senses different from general senses? (Don’t just say they are ‘special’,
explain how.)
Have receptor cells in specialized sensory organs
- For taste, smell, vision, & hearing
List the 5 categories of sensory receptors:
- Chemoreceptors = Response to chemicals for taste, smells, & blood pH detection
- Photoreceptors = Response to light
- Mechanoreceptors = Response to physical forces, motion, touch, hear, & etc.
- Thermoreceptors = Detection for any temp change
- Nociceptors = Response to damaged tissue (pain)
A small receptive field is associated with MORE precise sensation or LESS precise sensation?
MORE precise (specific) sensation
List the correct order of the eye
(Retina, lens, cornea, primary visual cortex, aqueous humor, optic nerve, vitreous
body, pupil)
Cornea, Aqueous humor, Pupil, Lens, Vitreous body, Retina, Optic nerve, & Primary visual cortex ?
Sclera
“white, fibrous layer of eye”
Function of Cornea
“Clear covering that lets light pass through anterior eye”
Choroid
“The eye’s highly vascular middle layer”
Function of Ciliary body
“Smooth muscle that controls lens’ shape”
Iris
“Colored part of anterior eye that’s around the pupil”
Pupil
“Open hole in the middle of the iris that light passes through inside the eye”
Retina
“Inner, light-sensitive layer that includes photoreceptors”
Optic disc
“Spot on the retina where axons exit & blood vessels come in”
Macula
“Oval-shaped pigmented area for high-resolution, color vision”
Aqueous humor
“Clear, watery fluid that fills space anterior to lens”
Lens
“Transparent structure that focuses light on retina”
Vitreous body
“Clear gel that fills space posterior to lens”
Which type of epithelial tissue provides protection for the cornea of our eyes?
Non-keratinized stratified squamous epithelium
Name the specialized cells for color vision.
Cone cells
Name the specialized cells for low-light vision.
Rod cells
Where in the brain do we perceive vision?
(In Occipital lobe) Primary visual cortex
Sound waves are collected by the ________ into the _________________________.
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As the __________ membrane moves, the three ___________________ vibrate.
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Movement of the stapes causes the ____________ to move back and forth.
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This movement generates fluid waves inside the __________ duct.
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This cause displacement of the basilar membrane.
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As the basilar membrane moves, the ____________ on __________ are bent.
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This bending generates a nerve impulse which is transmitted via ___________.
Sound waves are collected by the __Auricle__ into the ___External acoustic meatus_____.
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As the __tympanic___ membrane moves, the three ______auditory ossicles_______ vibrate.
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Movement of the stapes causes the ______oval window______ to move back and forth.
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This movement generates fluid waves inside the ____vestibular______ duct.
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This cause displacement of the basilar membrane.
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As the basilar membrane moves, the ___stereocilia_________ on ____hair cells______ are bent.
>
This bending generates a nerve impulse which is transmitted via ___CN VIII________.
How do taste cells recognize different tastes (flavors)?
Has taste buds, which have gustatory receptor cells that identify taste stimuli:
- 5 primary taste sensations:
1. Sweet
2. Bitter
3. Sour
4. Umami
Name the part of the brain that would be involved in receiving sensory information. Include the cortex/area AND the lobe of the cerebrum.
Seeing the colors of a painting =
Primary visual cortex in the occipital lobe
Name the part of the brain that would be involved in receiving sensory information. Include the cortex/area AND the lobe of the cerebrum.
Tasting the sour flavor in Sour Patch Kids =
Primary gustatory cortex in the frontal & insular lobes
Name the part of the brain that would be involved in receiving sensory information. Include the cortex/area AND the lobe of the cerebrum.
Smelling freshly baked cookies =
Primary olfactory cortex in Temporal lobe
Name the part of the brain that would be involved in receiving sensory information. Include the cortex/area AND the lobe of the cerebrum.
Perceiving pain in your right index finger =
Primary somatosensory cortex in parietal lobe
Name the part of the brain that would be involved in receiving sensory information. Include the cortex/area AND the lobe of the cerebrum.
Hearing your favorite band perform. =
Primary auditory cortex in Temporal lobe
