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Histology > Sensory Systems I - General & Chemical Senses > Flashcards

Sensory Systems I - General & Chemical Senses Flashcards

1
Q

What are receptors?

A

cells or proteins that recieve information

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2
Q

Nerve endings that are not encapulated are called ____ nerve endings. These receptors are functional for what kind of senses?

A
  • touch
  • heat
  • cold
  • itch
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3
Q

Free nerve endeding are ____ for pain.

A

nociceptors

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4
Q

Where are the main locations where you can find free nerve endings?

A
  • skin
  • mucous membranes
  • most organs
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5
Q

Where can you NOT find pain receptors?

A

in the brain and liver

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6
Q

not done

Which

A
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7
Q

Which receptor is a naked dendrite that is wrapped around a hair follicle called?

A

hair receptor

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8
Q

Which receptor is a branching dendrite with dialted tips and is enclosed in a fibrous capsule?

A

end bulb (Krause end bulb)

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9
Q
A

Lamellar (Pacinian) Corpuscle

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10
Q
A

Bulbous (Ruffini) Corpuscle

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11
Q
A

Meissner’s corpuscle

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12
Q
A

Pacinian corpuscle

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13
Q
A

Merkel’s disk

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14
Q
A

Ruffini endings

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15
Q

Which receptor is encapsulated dendrites embedded between collagenous fascicles of a tendon, near the muscle?

A

Golgi tendon organ

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16
Q

Which receptor is a fusiform fibrous capsule which contains few noncontractile intrafusal muscle fibers (nuclear chain and nuclear bag types)? It is innervated by annulospiral and flower-spray nerve endings.

A

muscle spindle

17
Q

What is gustation and where is it’s main function found?

A

gustation is taste and it’s main function is found on the tounge

18
Q

What are spikes without tastebuds; keratinized and tactile only?

A

fusiform

19
Q
A

lingual papillae

`

20
Q
A

taste buds

21
Q

What is olfaction and where is its main function found?

A

olfaction is smell and it is found in the nose

22
Q

Why is smell considered a chemical sense?

A

It depends on chemical signals sent to the brain via receptors

23
Q

What is the part of the olfactory system which detects the chemical senses?

A

olfactory bulb

24
Q

The olfactory system is the only system which does not go go through the ____ in the brain.

A

hypothalamus

25
Q

How many chemical oderants can the olfactory system sense?

A

about 100,000

26
Q

What is the shortest route to the CNS from the outside of the body?

A

the olfactory system

27
Q

Which kind of epithelium lines the olfactory system?

A

pseudostratified columnar epithelia

Histology (19 decks)

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