Wk 10 Special Senses

Question 1

What makes special senses different from general senses? (Don’t just say they are ‘special’,
explain how.)

Answer 1

Have receptor cells in specialized sensory organs
- For taste, smell, vision, & hearing

Question 2

List the 5 categories of sensory receptors:

Answer 2

1. Chemoreceptors = Response to chemicals for taste, smells, & blood pH detection
2. Photoreceptors = Response to light
3. Mechanoreceptors = Response to physical forces, motion, touch, hear, & etc.
4. Thermoreceptors = Detection for any temp change
5. Nociceptors = Response to damaged tissue (pain)

Question 3

A small receptive field is associated with MORE precise sensation or LESS precise sensation?

Answer 3

MORE precise (specific) sensation

Question 4

List the correct order of the eye
(Retina, lens, cornea, primary visual cortex, aqueous humor, optic nerve, vitreous
body, pupil)

Answer 4

Cornea, Aqueous humor, Pupil, Lens, Vitreous body, Retina, Optic nerve, & Primary visual cortex ?

Question 5

Sclera

Answer 5

“white, fibrous layer of eye”

Question 6

Function of Cornea

Answer 6

“Clear covering that lets light pass through anterior eye”

Question 7

Choroid

Answer 7

“The eye’s highly vascular middle layer”

Question 8

Function of Ciliary body

Answer 8

“Smooth muscle that controls lens’ shape”

Question 9

Iris

Answer 9

“Colored part of anterior eye that’s around the pupil”

Question 10

Pupil

Answer 10

“Open hole in the middle of the iris that light passes through inside the eye”

Question 11

Retina

Answer 11

“Inner, light-sensitive layer that includes photoreceptors”

Question 12

Optic disc

Answer 12

“Spot on the retina where axons exit & blood vessels come in”

Question 13

Macula

Answer 13

“Oval-shaped pigmented area for high-resolution, color vision”

Question 14

Aqueous humor

Answer 14

“Clear, watery fluid that fills space anterior to lens”

Question 15

Lens

Answer 15

“Transparent structure that focuses light on retina”

Question 16

Vitreous body

Answer 16

“Clear gel that fills space posterior to lens”

Question 17

Which type of epithelial tissue provides protection for the cornea of our eyes?

Answer 17

Non-keratinized stratified squamous epithelium

Question 18

Name the specialized cells for color vision.

Answer 18

Cone cells

Question 19

Name the specialized cells for low-light vision.

Answer 19

Rod cells

Question 20

Where in the brain do we perceive vision?

Answer 20

(In Occipital lobe) Primary visual cortex

Question 21

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 ___________.

Answer 21

Sound waves are collected by the __Auricle__ into the ___External acoustic meatus_____.
>
As the __tympanic___ membrane moves, the three ______auditory ossicles_______ vibrate.
>
Movement of the stapes causes the ______oval window______ to move back and forth.
>
This movement generates fluid waves inside the ____vestibular______ duct.
>
This cause displacement of the basilar membrane.
>
As the basilar membrane moves, the ___stereocilia_________ on ____hair cells______ are bent.
>
This bending generates a nerve impulse which is transmitted via ___CN VIII________.

Question 22

How do taste cells recognize different tastes (flavors)?

Answer 22

Has taste buds, which have gustatory receptor cells that identify taste stimuli:
- 5 primary taste sensations:
1. Sweet
2. Bitter
3. Sour
4. Umami

Question 23

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 =

Answer 23

Primary visual cortex in the occipital lobe

Question 24

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 =

Answer 24

Primary gustatory cortex in the frontal & insular lobes

Question 25

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 =

Answer 25

Primary olfactory cortex in Temporal lobe

Question 26

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 =

Answer 26

Primary somatosensory cortex in parietal lobe

Question 27

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. =

Answer 27

Primary auditory cortex in Temporal lobe