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21 Cards in this Set

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  • Back
What is the receptor for hearing?
Hair cells of the basilar membrane.
Where does info from the ear receptor travel?
From the hair cells on the basilar membrane to the auditory nerve and to the primary auditory cortex.
What is the receptor for taste?
Papillae found in the taste buds on the tongue.
Where does info from the tongue receptor travel?
It takes the 7th 9th and 10th cranial nerves to the tractus solitarius (medulla). Then to the pons, lateral hypothalamus, amygdala, thalamus, insula (cortex) -> to determine flavor or the somatosensory cortex -> to determine pressure.
What is the receptor for smell?
Cilia in the mucosa.
Where does info from the olfactory receptor travel?
Cilia -> olfactory bulb -> cortex.
What is the receptor for body position?
5 semi-circular canals (half-filled with jelly), like carpenter's levels.
Where does info from the vestiublar system travel?
Travels through part of the eighth cranial nerve to the brainstem and cerebellum.
What are the receptors for touch?
Raffini, Meissner's, Pacinian
Where does info from the touch receptors travel?
Info coming from the head travels through the cranial nerves. Info coming from the body travels through the spinal cord.
What is unique about hearing?
The tonotopic map.
What is unique about taste?
It is ipsilateral.
What is unique about smell?
Cortical design is identical across people. We all smell the same.
What is unique about touch?
Pain is a sensation, hurt is an emotion.
What is unique about vision?
Retinotopic map.
What food has no taste?
Chocolate.
What type of food is a favorite, and why?
Fats, they stimulate the mechanoreceptors in the tongue.
What two modalities create the sensation of flavor?
Taste and smell.
How many channels does pain have to the brain? Where?
One, at the top of the spinal cord.
What blocks pain?
Endorphins.
How does accupuncture work to relieve chronic pain?
Since the brain attends to new pain over old pain, the new slight pain from accupuncture temporarily relieves chronic pain.