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Flashcards in Sensory Physiology Deck (28):
0

Specific sensation, specific receptors

Differential sensitivity

1

Specific sensation, specific pathways

Labeled line prinicple

2

2 types of receptive fields

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

3

Encodes for movt of objects and low frequency vibratiob

Meissners corpuscle- FA 1

4

Combine to form Iggo Dome receptors

Merckel disc- SA 1

5

Signals degree of joint rotation

Ruffini's end organs- SA2

6

Onion like structure

Pacinian corpuscles- FA2

7

1st order neurons

Dorsal root or cranial nerve ganglia

8

Main determinant of IOP

Aqueous humor

9

Anatomic blind spit

Optic disk

10

Area of central vision with slight thickening and pale color

Macula lutea

11

Macular degeneration is due to the detetioration of what

Pigment epithelium

12

Contrast detectors

Bipolar cells

13

Receptors formpain

Free nerve endings

14

Pain at what temp?

15-43

15

Electromagentic waves detected bybeyes

400-750

16

Refractive power of eye

59 diopters

17

Main determinant of IOP

Aqueous humor

18

Rods contain what photopgment?

Rhodopsin

19

Ptosis, meiosis, anhudrosis

Horner's syndrome

20

Lymph in inner ear high in potassium

Endolymph

21

Lymph in inner ear high in sodium

Perilymph

22

Muscles in the ear

Tensor tympani, stapius-stapes

23

Frequency analyzer

Basilar membrane

24

Otolith organs

Utricle and saccule

25

Taste receptors last for

10 days

26

Number of taste receptors

50-150

27

Number of olfactory chemoreceptors

10 million