Control
of
Hormonal
Secretions
Hypothalamus
(releasing
hormone)
ā
Pituitary
(stimulating
hormone)
ā
Target
Gland
(secretes
hormone)
hormone
levels
rise
and
releasing
hormone
is
shut
down
(negative
feedback)
Pituitary
Gland
Location:
base
of
the
brain,
pituitary
stalk
attaches
it
to
the
hypothalamus
Consists
of
an
anterior
pituitary
and
posterior
pituitary
Hypothalamus
Brain
Pituitary
*Often
called
the
"master
gland"
because
of
its
great
influence
on
the
body
organs
Anterior
Pituitary
Hormones
Prolactin
or
PRL
-
PRL
stimulates
milk
production
from
a
woman's
breasts
after
childbirth
and
can
affect
sex
hormone
levels
from
the
ovaries
in
women
and
the
testes
in
men.
Growth
hormone
or
GH
-
GH
stimulates
growth
in
childhood
and
is
important
for
maintaining
a
healthy
body
composition.
In
adults
it
is
also
important
for
maintaining
muscle
mass
and
bone
mass.
It
can
affect
fat
distribution
in
the
body.
Adrenocorticotropin
or
ACTH
-
ACTH
stimulates
production
of
cortisol
by
the
adrenal
glands.
Cortisol,
a
so-called
"stress
hormone,"
is
vital
to
survival.
It
helps
maintain
blood
pressure
and
blood
glucose
levels.
Thyroid-stimulating
hormone
or
TSH
-
TSH
stimulates
the
thyroid
gland
to
make
thyroid
hormones,
which,
in
turn,
control
(regulate)
the
body's
metabolism,
energy,
growth
and
development,
and
nervous
system
activity.
Luteinizing
hormone
or
LH
-
LH
regulates
testosterone
in
men
and
estrogen
in
women.
(gonadotropin)
Follicle-stimulating
hormone
or
FSH
-
FSH
promotes
sperm
production
in
men
and
stimulates
the
ovaries
to
release
eggs
(ovulate)
in
women.
LH
and
FSH
work
together
to
allow
normal
function
of
the
ovaries
or
testes.
(gonadotropin)
Posterior
Pituitary
Hormones
Oxytocin
-
Oxytocin
causes
milk
letdown
in
nursing
mothers
and
contractions
during
childbirth.
Antidiuretic
hormone
or
ADH
-
ADH,
also
called
vasopressin,
is
stored
in
the
back
part
of
the
pituitary
gland
and
regulates
water
balance.
If
this
hormone
is
not
secreted
properly,
this
can
lead
to
problems
of
sodium
(salt)
and
water
balance,
and
could
also
affect
the
kidneys
Diuretics
=
increase
urine
production
Antidiuretics
=
decrease
urine
production
(maintaining
blood
volume)
