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

25
Two main functions of Cerebellum
1. Timing and flow of movement sequences 2. Accuracy and error correction
26
Where do corticobular tracts synapse?
Lower Motor neurons in the brainstem
27
Where do corticispinal tracts go to
From cortex to lower motor neurons in spinal cord
28
__________ moves limbs and digits on the bodys right side
Lateral Corticospinal tract
29
_________ moves muscles at the bodys mid line
Anterior Corticospinal Tract
30
Posterior root is __________
Sensory
31
Anterior root is ______
Motor
32
Anything that hits the skin is called ____________
Exteroceptive sense
33
___________ is what the body is doing, awareness of where parts of the body is
Proprioception
34
__________ is the internal organ, blood pressure
Interoceptive
35
_________ receptors are closest to skin, allows for feeling of touch
Merkel
36
___________ detect stretching of skin
Ruffini Corpuscles
37
_____________ detect vibration
Pacinian Corpuscles
38
____________ sense something hot, cold or painful
Free nerve endings
39
Areas of more sensitivity for Two point threshold have a high density of _____________
Merkel Receptors
40
Free nerve endings sense ________ pain
Nociceptive
41
____________ Responds to pleasant touch, has a emotional quality
CT mechanoreceptors
42
3 Categories of pain
1. Nociceptive 2. Inflammatory 3. Neuropathic
43
1. Nociceptive
By free nerve endings You cut your skin
44
2. Inflammatory
Puffy Swelling, red Initial part of healing Comes with physical pain
45
3. Neuropathic
Depper pain Pain in nerve pathways Feels like shooting electric signals Example: Pain experiencing when foot goes to sleep
46
Two dimensions of pain
1. Affective 2. Discriminative
47
1. Affective
Emotional aspect of pain Unpleasant
48
2. Discriminative
You know from which body part the pain is coming from
49
Pain pathway
pain - anteriorspinothalamic tract - Medial leminiscus - Thalamus
50
Pain matrix
1. Parietal 2. Prefrontal 3. Limbic
51
1. Parietal
Somasensory cortex
52
2. Prefrontal
Psychological
53
3. Limbic
Affective pain that comes from emotional aspects (amygdala
54
Traditional theory of pain
Nocicieptors sense pain Pain is completely physiological U sense pain it hurts
55
Problem with traditional theory
Does not explain placebo effect
56
Gate Controled Theory __________ opens the gate
Nociceptors
57
_______ closes the gate
Touch receptors
58
Opening of gate by ________ causes _________
Nocicereceptors Pain
59
Closing of gate by __________ causes _________
Mechanoreceptors Mechanical stress No sense of pain even if pain exists