olfactory system Flashcards

1
Q

What are the two types of senses

A

Special and general

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2
Q

Why are special senses special

A

They have specialised organs that gather sensory information and change it into nerve impulses

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3
Q

What are the special senses

A

Vision, hearing, balance, taste, smell

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4
Q

What does general senses mean

A

The sense of touch - sensory information about touch us gathered by the skin and other body tissues

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5
Q

what do the first order neurons do

A

detect a stimulus and transmits to spinal cord

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6
Q

what do the second order neurons do

A

connects to the thalamus

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7
Q

what do the third order neurons do

A

transfers signal to cerebral cortex

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8
Q

how many primary senses are there

A

7

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9
Q

what are the 7 primary senses

A

fishy
malty
minty
musky
spermatic
sweaty
urinous

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10
Q

where does the olfactory system transmit signals from and to

A

olfactory epithelium and nerves ->
Olfactory bulb ->
olfactory tract and striae ->
olfactory cortical areas.

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11
Q

what is the first point of contact in the olfactory system

A

olfactory epithelium of the nasal mucosa

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12
Q

where are the chemoreceptors found in the olfactory system

A

the olfactory bulb

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13
Q

what structures follows the olfactory bulb

A

the tract and nerve

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14
Q

what type of mass is found in the olfactory bulb

A

grey matter

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15
Q

what is present in the olfactory bulb

A

olfactory glomeruli

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16
Q

how does smells have memories and emotion attached to them

A

as some fibres connects to the limbic system which is involved in these feelings

17
Q

true or false, the olfactory system goes through the thalamus

A

false - it goes straight to the cortex for quicker reactions

18
Q

what are the general senses

A

pain
temperature
touch
vibration
pressure