12 and 13 Flashcards

(53 cards)

1
Q

Pain receptor called?

A

nociceptors

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2
Q

Gustation

A

Taste

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3
Q

What type of cells are taste receptors?

A

Epithelial cells

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4
Q

Where do taste sensory signals go to?

A

Thalamus

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5
Q

What sense bipolar neurons?

A

olfactory

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6
Q

Olfactory info sent to:

A

Olfactory cortex (Temporal)
Prefrontal Cortex (Taste area)
Hippocampus (Memory)
Amygdala (Emotion)

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7
Q

Equilibrium Sense where:

A

Vestibular Apparatus
(Semicircular canals)
(Otolith organ)

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8
Q

Endolymph

A

fluid in membranous labyrinth

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9
Q

Perilymph

A

fluid between bony & membranous labyrinths

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10
Q

Otolith organ

A

Provides info about linear acceleration

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11
Q

Semicircular canals

A

Provides info about rotational acceleration

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12
Q

Utricle

A

Sensitive to horizontal acceleration

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13
Q

Saccule

A

Sensitive to vertical motion

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14
Q

nystagmus

A

involuntary oscillations of eyes after you abruptly stop spinning

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15
Q

Vertigo

A

Loss of equilibrium, dizziness

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16
Q

Stapedius muscle

A

Pulls on stapes

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17
Q

Eustachian tube

A

Can open to equalize pressure

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18
Q

Glaucoma

A

Increase pressure due to inadequate drainage of aqueous humor

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19
Q

Accommodation

A

ability of eye to focus on objects at variable distances from the eye

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20
Q

Presbyopia

A

Loss of accommodation with age
Reduced flexibility of lens
Can’t get as round

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21
Q

Distant objects, lens is

A

Thin

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22
Q

Close objects, lens is

23
Q

Presbyopia “cure”

24
Q

cataracts

A

Cloudy vision
Damage causes crystalline proteins of lens to aggregate

25
Myopia
Nearsightedness Distant objects blurry Eyeball too long
26
Hyperopia
Farsighted Poor Near Vision Eyeball too short
27
Astigmatism
Uneven curvature of cornea/lens
28
5 categories of taste
Salty, sour, bitter, sweet, umami
29
Where are olfactory receptors
olfactory epithelium
30
What is the role of calcium carbonate crystals
They shift with movement causing shearing force between membrane and hair cell
31
Vision decussation where?
Optic chiasma
32
What is the dark current
In dark: N+ enters cell Photoreceptor releases inhibitory NT Bipolar cell can't fire Ganglionic cell can't fire No info to brain
33
Which has more sensitivity vs acuity?
Rods more sensitive Cones more acuity
34
Brain Split with vision
Left Field, right brain Right Field, left brain
35
Sarcolemma
Plasma membrane
36
Sarcolemma
Plasma membrane
37
T Tubules
Carry Action Potential
38
Sarcoplasmic reticulum
Modified ER Terminal cisternae - stores and releases Ca2+
39
Myofibril
Bundles of protein filaments
40
Sarcomere
Functional Unit Z-disc to Z-disc
41
I-Band
Part where there isn't myosin
42
A-Band
Part where there is myosin
43
H-band
Gap between actins
44
Troponin
Ca binding protein Moves Tropomyosin
45
Tropomyosin
Covers myosin binding site on actin
46
Thin filament
Actin
47
Titan
Structural "Spring" protein
48
Calmodulin
Present in smooth muscle
49
Hemoglobin
O2 carrying molecule in red blood cells
50
Myoglobin
O2 carrying molecule in skeletal muscle
51
Slow twitch
Aerobic, lots of mitochondria
52
fast twitch
anaerobic, few mitochondria, many glycolytic enzymes
53