TEST 2- Biological Foundations of Behavior Flashcards

1
Q

What is the body’s electrical communication circuitry?

A

The nervous system

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2
Q

What is the term which is demonstrated by the orchestration of billions of nerve cells?

A

complexity

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3
Q

What is integration?

A

Since the nervous system has so many levels and many different parts, integration is the communication across these levels through brain cells and extensive pathways

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4
Q

What is plasticity?

A

Refers to the brain’s special physical capacity for change

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5
Q

What is the process of neurons being responsible for chemical messages called?

A

Electrochemical transmission

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6
Q

What part of the nervous system does the brain and spinal cord make up?

A

Central Nervous System

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7
Q

What is the peripheral nervous system?

A

Network of nerves which connect the CNS to the other parts of the body

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8
Q

What part of the nervous system consists of sensory nerves which sense temperature and skeletal muscle?

A

Somatic Nervous System

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9
Q

What part of the nervous system is responsible for all non-voluntary control?

A

Autonomic nervous system

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10
Q

What are the two subsections of the automatic nervous system?

A

Sympathetic nervous system and Parasympathetic nervous system

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11
Q

What are nerve cells that handle information processing?

A

neurons

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12
Q

Why are mirror neurons important to psychology?

A

Because they activate both when we perform a task and when we watch it

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13
Q

What cells provide support and nutrition for neurons?

A

Glial cells

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14
Q

What are treelike structures that project from a neuron and receive and orient information?

A

dendrites

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15
Q

What part of the neuron contains nucleus and maufacturing apparatus?

A

Cell body

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16
Q

What is the part of the neuron that carries info away?

A

axon

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17
Q

What is a myelin sheath?

A

a layer of fat which encases and insulates most axons

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18
Q

What is the brief wave of positive electrical charge that sweeps down the axon?

A

action potential

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19
Q

What is the resting potienial of an axon?

A

between -60 and -75 milli volts

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20
Q

What is threshhold?

A

The point when reached, action potenial will not reverse

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21
Q

What is a synaps?

A

Spaces between neurons

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22
Q

What are terminal buttons?

A

Fibers branching off a axon, which contain neurotransmitters

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23
Q

What carry or transmit information across synaptic gap to the next neuron?

A

neurotransmitters

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24
Q

What is it called when the neurotransmitter is finished delivering it’s message, some of the transmitter is used for energy and some is reabsorbed?

A

re-uptake

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25
What stimulates firing of neurons and is involved in muscle action, learning and memory?
Acetylcholine
26
What inhibits neurons from firing and low levels are linked to anxiety? Drugs like vallium increase it
GABA
27
What excited neurons to fire, and is especially linked to learning and memory?
Glutamate
28
What inhibits the firing of neurons in CNS and excites heart muscle, intestines and urogenital tract? Works with AcH to regulate sleep and wakefullness
Norepinephrine
29
What is used to recognize rewarding experiences and low levels are associated with Parkinsons and high levels with Schizophrenia?
Dopamine
30
What when in low levels is associated with depression and helps regulate sleep and wakeful levels? Prozac slows down the reuptake of this into terminal buttons?
Serotonin
31
What is a natural opiate which stimulates the firing of neruons? Morphine mimics it
Endorphins
32
What is linked to love and relationships and milk production?
Oxytocin
33
What records the brain's electrical activity?
EEG
34
What produces a 3 dimensional image using xray waves?
CAT or CT scan
35
What measures and captures metabolic changes to the brain? | What specifically does it measure?
PET Glucose levels
36
What creates a magnetic field around the body and uses radio waves?
MRI and fMRI
37
What is the difference between an MRI and a fMRI?
fMRI measures changes in blood oxygen
38
What is used to show causation using rapid fire magentic fields that create a virtual lesion?
Transcriptional Magnetic stimulation or TMS
39
What are the 3 parts of the hindbrain?
Medulla, pons, brainstem
40
What does the medulla control?
breathing and heart rate
41
Where is the medulla located?
Where spinal cord meets skull
42
What does the pons connect?
cerebellum with the brainstem
43
What makes up the brainstem?
Medulla, pons and hindbrain
44
What does the cerebellum control?
Motor coordination
45
What does the midbrain control?
relays info b/w brain, eyes, and ears
46
What is a diffuse collection of neurons involved in a sterotyped patterns of behavior such as walking, sleeping, and turning around to a sudden noise?
Reticular formation
47
Where is the limbic system located?
In the forebrain
48
What are the two subsections of the limbic system?
Amygdala and the hippocampus
49
What is the function of the Amygdala?
involved in discrimination of objects nessasary to an organisms survival and emotional awareness
50
What is the function of the hippocampus?
special role in memory
51
What is the very important relay station for the brain?
Thalamus
52
What work with the cerebellum and the central cortex to control and coordinate voluntary movements?
Basal Ganglia
53
What is the function of the hypothalamus?
monitors 3 rewarding activities-> | Eating, drinking, and sex as well as emotion, stress, reward
54
What did Olds and Milner do?
Discovered a pleasure center in the hypothalamus
55
Where does the most complex mental function take place?
Cerebral cortex
56
What makes up 80% of the cortex and is though to be why humans have higher level thinking?
Neocortex
57
What are hemispheres?
Two halves of the brain, each set up into 4 lobes
58
What are the four lobes of the brain?
Occipital, temporal, Frontal and parital
59
What is the occipital lobe responsible for?
Response to visual stimuli
60
What is the temporal lobe responsible for?
Involved in hearing, language process, memory
61
What is the frontal lobe responsible for?
Involved in personality and control of voluntary muscle
62
What is the pre-frontal cortex responsible for?
Higher cognitive functions such as planning, reasoning, and self control
63
What are the parietal lobes responsibe for?
Registering spacial location, attention and motor control
64
What is located at the front of parietal lobes and processes information about body sensations?
Somatosensory cortex
65
What is located in the back of frontal lobe and processes info about voluntary movement?
Motor cortex
66
What refers to the area of the brain that integrates sensory and motor information?
Association cortex
67
What is Broca's Area?
area of the left hemisphere of the brain that plays a role in speech. Damage to this area will result in a loss of being able to speak
68
What is Wernwick's Area?
Another area of the left hemisphere of the brain that controls understanding of speech
69
What is the corpus callosum?
Large bundles of axons that connect brains two hemispheres
70
What does the left hemisphere control?
Much of language processing
71
What does the right hemisphere control?
processing of non-verbal information such as spatial perception, visual reg and emotions
72
What are the 3 methods of Repair?
Collateral Sprouting Substitution of function Neurogenesis
73
What is the process of axons of healthy neurons grow new branches?
Collateral Sprouting
74
What is the process which damaged regions of the brain's functions are taken over by other sections of the brain?
Substitution of function
75
What is the process which new neurons are generated?
Neurogenesis
76
What is it called when an implant of healthy tissue into damaged brains?
Brain Grafts
77
What is stress?
Response of indivdual's stressors
78
What are stressors?
Circumstances and events that threaten them and tax coping abilities
79
What is acute stress?
stress that occurs in response to a immediate perceived threat, than when threat receeds, so does the stress
80
What is chronic stress?
Stress that goes on continuously and may lead to persistant automatic nervous system arousal