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Physiology > Sensory Physiology > Flashcards

Sensory Physiology Flashcards

0
Q

Specific sensation, specific pathways

A

Labeled line prinicple

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1
Q

Specific sensation, specific receptors

A

Differential sensitivity

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2
Q

2 types of receptive fields

A

1- smaller, well defined borders, 2- wider- poorly defined borders

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3
Q

Encodes for movt of objects and low frequency vibratiob

A

Meissners corpuscle- FA 1

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4
Q

Combine to form Iggo Dome receptors

A

Merckel disc- SA 1

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5
Q

Signals degree of joint rotation

A

Ruffini’s end organs- SA2

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6
Q

Onion like structure

A

Pacinian corpuscles- FA2

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7
Q

1st order neurons

A

Dorsal root or cranial nerve ganglia

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8
Q

Main determinant of IOP

A

Aqueous humor

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9
Q

Anatomic blind spit

A

Optic disk

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10
Q

Area of central vision with slight thickening and pale color

A

Macula lutea

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11
Q

Macular degeneration is due to the detetioration of what

A

Pigment epithelium

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12
Q

Contrast detectors

A

Bipolar cells

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13
Q

Receptors formpain

A

Free nerve endings

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14
Q

Pain at what temp?

A

15-43

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15
Q

Electromagentic waves detected bybeyes

A

400-750

16
Q

Refractive power of eye

A

59 diopters

17
Q

Main determinant of IOP

A

Aqueous humor

18
Q

Rods contain what photopgment?

A

Rhodopsin

19
Q

Ptosis, meiosis, anhudrosis

A

Horner’s syndrome

20
Q

Lymph in inner ear high in potassium

A

Endolymph

21
Q

Lymph in inner ear high in sodium

A

Perilymph

22
Q

Muscles in the ear

A

Tensor tympani, stapius-stapes

23
Q

Frequency analyzer

A

Basilar membrane

24
Q

Otolith organs

A

Utricle and saccule

25
Q

Taste receptors last for

A

10 days

26
Q

Number of taste receptors

A

50-150

27
Q

Number of olfactory chemoreceptors

A

10 million

Physiology (22 decks)

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