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Anaphy Lecture > Action Potential > Flashcards

Action Potential Flashcards

1
Q

Depolarize and Repolarize Actions

A

Action Potential

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2
Q

Concepts involved in Action Potential

A 
1 Neuron
2 Protein
3 Na+ & K+
4 Stimuli
5 Voltage
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3
Q

In order to receive stimuli there should be?

A

Receptors

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4
Q

2 properties of AP?

A

Irritability
Conductivity

(should be present in Action Potential)

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5
Q

means to disseminate, propagate, distribute and conduct

A

Propagation

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6
Q

can be visualized thru graph

A

flow of Ions

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7
Q

it will not cause any energy

A

Passive Transport

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8
Q

it will cause energy

A

Active Transport

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9
Q

what ion is present in EXTRACELLULAR SPACE?

A

Na (Soduim) Major Extracellular Cation

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10
Q

what ion is present in INTRACELLULARLY SPACE?

A

K (Potassium) Major Intracellular Cation

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11
Q

normal value of Na?

A

135-145 mEq/L

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12
Q

normal value of K?

A

3.5-5.5 mEq/L

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13
Q

it is the polarized state with no stimulus

A

Resting Membrane Potential

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14
Q

T or F

before magkaroon ng Action Potential kailangan ma meet muna yung Threshold

A

TRUE

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15
Q

what is the responsible for negative charge in the cell?

A

Proteins

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16
Q

T or F

2 neuron can be propagate to 4 neuron

A

False, 1 lang dapat

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17
Q

T or F

1 neuron can be dissemenate to 3 neuron

A

False, 2 lang dapat

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18
Q

Electricity and Chemicals in NS

A

Stimuli

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19
Q

Voltage Gated Channels is activated

increase membrane permeability to Na 1000x

A

Depolarization

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20
Q

increase membrane permeability to K 30x

A

Repolarization

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21
Q

it happens when there is more negative kesa sa Resting Membrane Potential

one cannot stimulate it

pero gradually babalik din

A

Hyperpolarized

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22
Q

in cases where it cannot stimulate

A

Refractory - matigas ulo pero it will refract gradually

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23
Q

what is the direction of propagation?

A

—————> right di na pwedeng bumalik mag rerefract pag bumalik

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24
Q

Action Potential where speed is fastest?

A

Myelinated 100m/s

unlike unmyelinated 0.5m/s

25
Q

what happens if muscles are activated?

A

it contracts or shorten

26
Q

what happens if glands are activated?

A

it secretes

example
if sweat gland is activated it will secrete SWEAT

27
Q

passive flow of ions molecules across the cell membrane

A

Diffusion

28
Q

Counterpart of Diffusion?

flowback after entering

needed kasi kailangan ng homeostasis palagi

A

Active Transport

29
Q

T or F

voltage gated channels are always open for Na and K

A

False, open lang siya for certain phase

30
Q

ability to perceive stimuli

A

sense

31
Q

awareness of stimuli received by sensory neurons

A

sensation

32
Q

sensory nerve endings that responds to stimuli by developing AP

A

Sensory receptors

33
Q

receptors are distributed over large part of the body

A

General Senses

34
Q

T or F

2 types of General Senses are
Somatic and Visceral

A

True

Somatic ( about environment and body)
Visceral ( about internal organs)

35
Q

receptors that are confined to a particular space

A

Special Senses

36
Q

T or F

visceral is a serous membrane

A

True

37
Q

5 types of Special Senses?

A 
Sight
Taste
Smell
Hearing
Balance
38
Q

5 types of receptors

A 
Mechanoreceptor
Chemoreceptors
Photoreceptor
Thermoreceptor
Nocicereceptor
39
Q

main receptor to detect light

A

Photoreceptor

40
Q

main receptor to detect pain

A

Nocicereceptor

41
Q

main receptor to detect chemicals and odorants

A

Chemoreceptor

42
Q

main receptor to detect temperature changes

A

Thermoreceptor

43
Q

main receptors to detect movement, touch, pressure, vibration

A

Mechanoreceptor

44
Q

5 types of touch receptors

A 
Merkel's Disk
Hair Follicle Receptor
Meissner Corpuscle
Ruffini Corpuscle
Pacinian Corpuscle
45
Q

detects continuous pressure in skin and deep tactile receptor

A

ruffini corpuscle

46
Q

AKA deepest receptor detects deep pressure, vibration, position

associated with tendons and joints

A

pacinian corpuscle

47
Q

detects light touch and pressure

A

merkel’s disk

48
Q

detects light touch

A

Hair Follicle Receptor

49
Q

Deep in Epidermis

can sense discriminative touch and localize tactile sensation

kaya niya madistinguish kung saan yung magkaibang touch

A

Meisnner Corpuscle

50
Q

unpleasant perceptual and emotional experience

A

PAIN

51
Q

2 Types of Pain

A

Localized

Diffusion

52
Q

sharp pricking and cutting pain

to a specific area only means Rapid AP

A

Localized Pain

53
Q

burning and aching pain means Slow AP

to a larger are

A

Diffused Pain

54
Q

T or F

nerves in the pacinian is thicker than nerve fibers

A

True

55
Q

what do you call a non painful deep touch

A

nonesoseptic

56
Q

region that is not the source of pain

this can be felt when internal organs are damaged or inflamed

A

Referred Pain

57
Q

sensory neurons from superficial are and neurons of source pain converge onto some ascending neurons of spinal cord

A

Referred Pain

58
Q

non painful input

close the nerve “gates” to painful input

A

Gate Control Theory

prevents pain sensation from travelling all the way to the CNS

Anaphy Lecture (15 decks)

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