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PSY 242 > Chapter 11 > Flashcards

Chapter 11 Flashcards

1
Q

Motor signals

A

Efferent
Goes to the body

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2
Q

Sensory signals

A

Afferent
To brain

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3
Q

This is part of the brain which plans what you are going to do, panning executive function

A

Prefrontal Cortex

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4
Q

Organizing and preparing motor sequences

A

Premotor Cortex

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5
Q

Commands ; and cordinates movement of the body, this has a map of different body parts

A

Motor Cortex

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6
Q

________ corrects movement errors

A

Cerebellum

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7
Q

___________ judges grasp forces

A

Basal Ganglia

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8
Q

Where does producing movement start and end

A

Starts in the Cortex (CNS) and terminates in muscle fibers (PNS)

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9
Q

Consulting loop is caused by ____________

A

Basal Ganglia
Refining movements
Initiating movements (Information from PSY 246)

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10
Q

______________ is involved in repetetive movement

A

Striatum

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11
Q

What is striatum made of

A
  1. Putamen
  2. Caudate nucleus
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12
Q

____________ determines the strength for the movement ; how much force is required for a task

A

Globus Pallidus

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13
Q

Praksinons is caused by __________ neurons in ___________

A

Dopaminergic
Substantia Nigra

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14
Q

Hyperkinetic movements

A

Unwanted movements are initiated

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15
Q

Hypokinetic Movements

A

Paerson cannot move or initiate movements

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16
Q

Resting Tremor

A

Hyperkinetic Movement
Unwanted movements are initiated

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17
Q

Huntingtons Disease

A

Erratic fuctioning : Cannot move precisely and accurately
Cognitive and Motor Decline (Dementia)

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18
Q

How is Huntington caused

A

Genetics

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19
Q

Rodent models of Parkinson’s use the neurotoxin ____________

A

MPTP

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20
Q

presence of MPTP causes __________

A

Killing Dopaminergic neurons in the substantia nigra

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21
Q

Axons of upper motor neurons descend to the brainstem via ____________

A

Internal capsule

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22
Q

Corticobulbar tracts

A

Areas around your neck

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23
Q

Corticospinal tracts

A

Areas that goes to the spine and to the rest of the body

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24
Q

Is there a map of the body in cerebellum

True or False

A

True

25
Q

Two main functions of Cerebellum

A
  1. Timing and flow of movement sequences
  2. Accuracy and error correction
26
Q

Where do corticobular tracts synapse?

A

Lower Motor neurons in the brainstem

27
Q

Where do corticispinal tracts go to

A

From cortex to lower motor neurons in spinal cord

28
Q

__________ moves limbs and digits on the bodys right side

A

Lateral Corticospinal tract

29
Q

_________ moves muscles at the bodys mid line

A

Anterior Corticospinal Tract

30
Q

Posterior root is __________

A

Sensory

31
Q

Anterior root is ______

A

Motor

32
Q

Anything that hits the skin is called ____________

A

Exteroceptive sense

33
Q

___________ is what the body is doing, awareness of where parts of the body is

A

Proprioception

34
Q

__________ is the internal organ, blood pressure

A

Interoceptive

35
Q

_________ receptors are closest to skin, allows for feeling of touch

A

Merkel

36
Q

___________ detect stretching of skin

A

Ruffini Corpuscles

37
Q

_____________ detect vibration

A

Pacinian Corpuscles

38
Q

____________ sense something hot, cold or painful

A

Free nerve endings

39
Q

Areas of more sensitivity for Two point threshold have a high density of _____________

A

Merkel Receptors

40
Q

Free nerve endings sense ________ pain

A

Nociceptive

41
Q

____________ Responds to pleasant touch, has a emotional quality

A

CT mechanoreceptors

42
Q

3 Categories of pain

A
  1. Nociceptive
  2. Inflammatory
  3. Neuropathic
43
Q
  1. Nociceptive
A

By free nerve endings
You cut your skin

44
Q
  1. Inflammatory
A

Puffy
Swelling, red
Initial part of healing
Comes with physical pain

45
Q
  1. Neuropathic
A

Depper pain
Pain in nerve pathways
Feels like shooting electric signals
Example: Pain experiencing when foot goes to sleep

46
Q

Two dimensions of pain

A
  1. Affective
  2. Discriminative
47
Q
  1. Affective
A

Emotional aspect of pain
Unpleasant

48
Q
  1. Discriminative
A

You know from which body part the pain is coming from

49
Q

Pain pathway

A

pain - anteriorspinothalamic tract - Medial leminiscus - Thalamus

50
Q

Pain matrix

A
  1. Parietal
  2. Prefrontal
  3. Limbic
51
Q
  1. Parietal
A

Somasensory cortex

52
Q
  1. Prefrontal
A

Psychological

53
Q
  1. Limbic
A

Affective pain that comes from emotional aspects (amygdala

54
Q

Traditional theory of pain

A

Nocicieptors sense pain
Pain is completely physiological
U sense pain it hurts

55
Q

Problem with traditional theory

A

Does not explain placebo effect

56
Q

Gate Controled Theory

__________ opens the gate

A

Nociceptors

57
Q

_______ closes the gate

A

Touch receptors

58
Q

Opening of gate by ________ causes _________

A

Nocicereceptors
Pain

59
Q

Closing of gate by __________ causes _________

A

Mechanoreceptors
Mechanical stress
No sense of pain even if pain exists

PSY 242 (5 decks)

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