Peripheral Nervous System 1 Flashcards

1
Q

Consciously interpreting the world around you using your sensory system is known as?

A

Perception

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2
Q

Interpretation can either go the __________ or ________

A

A) Spinal cord
Or
B) Brain stem and upwards

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3
Q

The energy form of stimulus is called

A

Modality

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4
Q

Every receptor has its own modality (energy form)
Yes or No

A

Yes

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5
Q

What is the energy form converted into?

A

It’s converted into Action potential

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6
Q

Touch receptors will have __________ as it’s energy form (modality)

A

Touch

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7
Q

When light photons are converted into sensory modality, it’s called

A

Transduction

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8
Q

The change from one modality to modality is called

A

Transduction

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9
Q

The conversion of one energy form to another energy form is called

A

Transduction

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10
Q

Light made into an image by the eye is what type of transduction

A

Visual transduction

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11
Q

How does the conversion happen/how is the message produce?

A

It’s produces thru action potential, which is how they get to the CNS.

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12
Q

Action potential can take 2 distinct forms of generation?

A
  1. Receptor potential
  2. Generator potential
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13
Q

What’s helps to avoid wastage of energy?

A

Receptor adaptation

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14
Q

The receptor adaptation can either be ________ or _________z

A

Slow or rapid

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15
Q

2 major types of receptor adaptation?

A
  1. Tonic adaptation
  2. Phasic adaptation
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16
Q

What type of adaptation fires immediately and then slowly adapt to maintain homeostasis?

A

Tonic Adaptation

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17
Q

What type of adaptation is seen in muscle & joint receptor and pressure receptors?

A

Tonic Adaptation

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18
Q

What type of adaptation is fast and rapid?

A

Phasic adaptation

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19
Q

The type of adaptation where homeostasis is not disturbed is called?

A

Phasic adaptation

20
Q

Touch receptors/smell receptor/tactile responses/olfactory receptors are all examples of what kind of adaptation?

A

Phasic adaptation

21
Q

The adaptation working to maintain homeostasis is

A

Tonic Adaptation

22
Q

What’s always follow a pathway?

A

Receptors

23
Q

Which neuron is the first neuron in the somatosensory pathway?

A

Afferent Neurons

24
Q

Which is the first order Neurons?

A

Afferent Neurons

25
Q

There are 2 places where a pain reception can stop, what are they?

A

@ the spinal cord
Or
@ the Brain stem

26
Q

What forms the starting point

A

Receptor

27
Q

Pathway is also known as

A

Labeled lines

28
Q

Each receptor have a unique labelled line, True or False

A

True

29
Q

Labelled line is also known as

A

Chain of neuron

30
Q

Stimulus - ______1_______ - Afferent (first order Neurons) - _____2_____ - 2nd order Neurons - ______3_______ - high cortex (3rd order neuron)

A
  1. Receptors
  2. Brain stem/spinal cord
  3. Thalamus
31
Q

Sensory neuron located either in the spinal cord or the brain stem(medulla oblongata)

A

Second order sensory neuron

32
Q

Sensory neuron located on the thalamus?

A

Third order sensory neuron

33
Q

Which sensory neuron synapses eith the higher cortex?

A

Third order sensory neuron

34
Q

Where are all the sensations refined?

A

Thalamus

35
Q

Does all receptors have the feature named Acuity? Yes or No

A

Yes

36
Q

The discriminative ability of good and bad is refered to as

A

Acuity

37
Q

Acuity is influenced by 2 major concepts?

A
  1. Receptive field size
  2. Lateral inhibition
38
Q

What is majorly influenced by field size and lateral inhibition?

A

Acuity

39
Q

Fields that are served by 2 different neurons is

A

2 points reception

40
Q

One big field and has one afferent Neuron is

A

One point reception

41
Q

Field size can either be ______ or _____

A

One point or 2 points receptions.

42
Q

What ensures that CNS is not crowded with all the reception but takes up only what is useful?

A

Acuity

43
Q

The eye receptor uses ______________ to form borders of images which help to sharpen images.

A

Lateral inhibition

44
Q

The ear receptor uses this to sift through all the noise and concentrate and sharpen the particular sound its aiming for..

A

Lateral inhibition

45
Q

Receptive field size and lateral inhibition majorly influence what?

A

Acuity