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bio psych Flashcards

1
Q

what is the human nervous system divided into

A

central nervous system
peripheral nervous system

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2
Q

what does CNS stand for

A

central nervous system

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3
Q

what is the CNS function

A

it receives info from the senses and controls behaviour and regulates the bodys psyhiological processes

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4
Q

what is the CNS made ip of

A

brain and spinal cord

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5
Q

what does the spinal cord do

A

it relays information between the brain and the rest of the body.
Allows the brain to monitor and regulate bodily processes such as digestion

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6
Q

how many main areas of the brain are there

A

four

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7
Q

what does the brain do

A

provides conscious awareness and it regulate the bodys psychological processes

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8
Q

what does the brain consit of the main areas?

A

occipital lobe
temporal lobe
parietal lobe
frontal

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9
Q

what does the occipital lobe do

A

processes visual information

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10
Q

what does the temporal lobe do

A

processes auditory information

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11
Q

what does the parietal lobe do

A

integrates info from the senses

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12
Q

what does the frontal lobe do

A

it assosiated with higher order functions

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13
Q

what does the brain stem do

A

connects the brain and spinal cord

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14
Q

what does the spinal cord do

A

its role is to transfer messages to and from the brain and the rest of the body

its responsible for simple refleces

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15
Q

what is the peripheral nervous system

A

its role is to relay nerve impulses from the CNS to the rest of the body and from the body back to the CNS

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16
Q

what is the Peripheral nervous system divided into

A

SNS
ANS

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17
Q

what does SNS stand for

A

semantic nervous system

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18
Q

what does the semantic nervous system do

A

it is responsible for carrying sensory and motor information to and from the centeral nervous system

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19
Q

what does ANS stand for

A

autonomic nervous system

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20
Q

what does the autonomic nervous system do

A

it governs the brains involuntary activities
plays an important role in homeostatis

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21
Q

show the nervous system and the divisons

A

nervous system
CNS PNS
brain + spinal cord SNS ANS
sympathtic para

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22
Q

what does the autonomic nervous system consist of

A

sympathetic nervous system

parasympathetic nervous system

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23
Q

what does the sympathetic nervous system do

A

it helps our bodies respond to emergancies such as fight of flight

it increases heart rate and slows down digestion speed

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24
Q

what does the parasympathetic nervous system do

A

its role is to relax the body back to its normal resting state

slows heart rate
spead up digestion speed

25
what is a neuron
neuron is a specialised nerve cell that recieves processes and transmits info to other cells in the body
26
how many types of neurosn are there
three
27
what are the types of neurons
relay motor sesonry
28
what do sensory neurons do
they cary nerve implusses from sensory receptors to spinal cord and brain
29
what is the structure of sensory neurons
receptor cell axon with mylein sheath cell body
30
what is a relay neuron
they allow sensory and motor neurons to communicate with each other
31
what is the strucutre of a relay neuron
dendrites cell body long axon pre synaptic terminal
32
what does a motor neuron do
they form synapses with muscles and control their contractions and release neurotransmitters
33
what is the structure of motor neurons
MONSTER SHAPE dendrites cell body axon with mylein sheat dendrites
34
draw a synapse
...
35
what is a synpase
A synapse is the junction that allows the signal to pass between neurons,
36
what is synaptic transmission
is a process by which a nerve impulse passes across the synaptic gap from one neuron to another neuron
37
describe the synaptic transmission process
an action potential travels down the axon this triggers the release of neurotransmiters into the SG these diffuse across the SG into the post synaptic cell
38
what are neurotransmitters
chemical substances that transmit nerve impulses across a synapse
39
how many types of neurotransmitters
two
40
what are the types of neurotransmitters
excitatory neurotransmitter inhibitory neurotransmitter
41
what is an excitatory neurotransmitter
increase the likelihood that an excitatory signal is sent to the post SC which is more likely to fire
42
what is an inhibitory neurotransmitter
they decrease the likelihood of the neuron firing
43
what is the endocrine system
it is a network of glands throughout the body that manufacture and secrete chemical messengers known as hormones
44
what are the major glands in the endorcrine system
pituitary gland adrenal gland ovaries testes
45
what are hormones
bodys chemical messangers which travel through the blood stream which determines different processes e.g mood
46
what is the role of endocrine glands
produce and secrete hormones and chemical substances that regulate the activity of cells or organs in the body
47
what is the pituitary gland
is known as the master gland because the hormones released control and stimulate the release of hormones from other glands in the endocrine
48
what does the thyroid gland do
releases thyroxine
49
what does thyroxine do
responsible for regulating metabolism
50
what is the adrenal gland divided into
adrenal medulla adrenal cortex
51
what does the adrenal medulla do
releasing adrenaline and noradrenaline to prepare for fight or flight
52
what does the adrenal cortex do
releases cortisol which stimulates the release of glucose, supresses the immune system
53
what does the testes produce
releases testosterone, which is responsible for the development of male sex characteristics during puberty
54
what does the ovaries produce
releases oestrogen which controls the regulation of female reproductive system
55
what is the fight or flight response
is a sequence of activity within the body that is triggered when the body prepares itself for defending
56
what does the amygdala and hypothamulus do for fight or flight
when faced with threat amygdala is moblised sends a distress signal to hypothamulus
57
how does the body respond to accute stresses
the sympathetic nervous system is triggered it increaases the realesment of adrenalin causing heart rare to increase increases the realeade of blood pressure the parasympathetic nervous system slow down these psychological chnages
58
how does the body respond to chronic stressors
hypothmaulas activies a stress response system called HPA axis
59
what is the HPA axis
hypothamus - releases CRH into blood stream to respond to stressor pituitary gland - releases ACTH, transported through blood stream adreanal gland - ACTH stimulates adrenal cortex to release various stress related hormones

Psychology (9 decks)

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