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psychology - biopsychology
endocrine system
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m hussain
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Cards (24)
what does the endocrine system do?
it is a way in which different
parts
of the body
communicate
with each other
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what does the endocrine system use as chemical messengers?
hormones
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where are hormones produced?
by specialised
cells
in
glands
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how do hormones travel to to their target organ?
through the
bloodstream
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why do hormones have more widespread effects than nerves?
hormones
come into contact with every
organ
in the body (travelling through
blood
) so if that organ has
receptors
for the hormone, it can be affected by it
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what does a hormone have to do to have an effect?
be produced by
gland
release into
blood
travel to
target
organ
join
receptors
in target organ
trigger
response
in target organ
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why are hormones longer lasting than nervous responses?
hormones take
time
to be removed from the
blood
and
broken
down
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what kind of change will hormones produce?
permanent
change in target
organ
or
tissue
e.g. thyroxine causes growth
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what kind of response do nerves usually produce?
fast
and
short
lived
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what kind of response do hormones usually produce?
slow
to happen yet
longer
lasting
effects, some even
permanent
like growth
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where is the hormone adrenalin produced?
adrenal
medulla
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what is the function of the hormone adrenalin?
increases heart
rate
,
blood
pressure
and
breathing
rate to prepare for fight or
flight
response
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where is the hormone cortisol produced?
adrenal cortex
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what is the function of the hormone cortisol?
regulates
blood
sugar
by releasing stored
glucose
from the
liver
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where is the hormone oestrogen produced?
ovaries
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what is the function of the hormone oestrogen?
female
secondary
sexual
characteristics e.g.
breast
development
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where is the hormone testosterone produced?
testes
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what is the function of the hormone testosterone?
male
secondary
sexual characteristics e.g.
muscle
development (also associated with
aggression
)
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what is the pituitary gland?
the
'master'
gland
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why is the pituitary gland known as the 'master' gland?
its
hormones
control the
release
of other hormones from all other endocrine glands
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what is the pituitary gland controlled by?
hypothalamus
area of the
brain
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why do the nervous and endocrine system work together?
to produce the
flight
or
fight
response
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where did the flight or fight response come from?
evolved
in our
ancestors
to help with deal with
threats
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why is the flight or fight response present in all humans?
it is genetically
pre-programmed
behaviour
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