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ANSC 333 Exam 2- Satterfield with 100% correct answers
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ANSC 333 Exam 2- Satterfield with 100% correct answers
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ANSC333
Exam
2-
Satterfield
What
is
the
carrier
protein
of
estradiol?
-
ANS-Alpha-fetal
proteins
How
does
the
surge
center
in
males
not
develop?
-
ANS-The
test
yes
produce
testosterone
which
crosses
the
blood-testes
barrier
and
aromatase
converts
the
testosterone
into
estrodiol
What
controls
cyclicity
in
females
-
ANS-Hypothalamus
Why
do
we
have
pulses
of
GNRH
-
ANS-Because
we
have
pulses
of
LH
What
stimulates
the
production
of
testosterone
-
ANS-LH
What
are
5
factors
that
control
the
age
of
attainment
of
puberty?
-
ANS-1.
Genetic
component
2.
Acute
nutrition-
short
term
(experiment
in
rats
where
we
blocked
the
body
from
seeing
glucose)
3.
Acute
nutrition-
long
term
(nutrition
bonus=
faster,
deposition
of
fat)
4.
Social
environment
(pheromones)
5.
Season/
photo
period
(seasonal
breeders)
What
are
the
3
types
of
cyclicity?
-
ANS-1.
Polyestrus
2.
Seasonal
Polyestrus
3.
Monoestrus
Define
Polyestrus
and
give
some
examples
of
polyestrous
breeders
-
ANS-Reoccurring
cycles
through
out
the
entire
year
Ex:
cow,
queen,
sow
Define
seasonal
Polyestrus
and
examples
of
season
breeders
-
ANS-Cycle
multiple
times
in
a
specific
season
Long
day
breeders:
mare
(low
melatonin)
Short
day
breeders:
sheep
(high
melatonin)
Define
monoestrus
and
give
examples
of
these
breeders
-
ANS-Cycle
once
through
out
the
year
Ex:
dogs
and
wolves What
is
luteolysis
and
what
does
it
cause
-
ANS-Luteolysis
is
the
regression
of
the
CL
and
is
the
cause
of
the
end
of
the
luteal
phase
which
allows
for
a
new
follicular
phase
to
occur
What
are
the
stages
of
the
follicular
phase
-
ANS-Proestrus
and
estrus
What
is
happening
during
proestrus
and
what
types
of
follicles
may
we
find
-
ANS-Progesterone
levels
are
declining
and
estrogen
levels
are
increasing.
We
may
find
primary,
secondary
or
tertiary
follicles
What
is
happening
during
estrus
and
what
types
of
structures
may
we
find
-
ANS-Peak
estrogen
and
progesterone
is
at
its
lowest
Dominant
follicle
What
marks
the
end
of
estrus
-
ANS-Ovulation
What
are
the
luteal
phase
stages
-
ANS-Metestrus
and
diestrus
What
is
happening
during
metestrus
and
what
types
of
structures
may
we
find
-
ANS-Progesterone
is
increasing
and
estrogen
is
decreasing
Corpus
hemmoragicum
is
becoming
a
CL
What
is
happening
during
diestrus
and
what
types
of
structures
may
we
find
-
ANS-Progesterone
is
at
its
highest
and
estrogen
is
at
the
lowest
CL
What
is
anestrus
-
ANS-A
period
of
time
when
the
female
is
not
experiencing
her
regular
reoccurring
estrus
cycles
What
are
5
reasons
we
can
have
anestrus
-
ANS-1.
Pregnancy
2.
Lactation
3.
Nutrition
4.
Sick
5.
Wrong
season
How
does
cyclicity
with
season
breeders
work?
-
ANS-Nerves
in
the
eye
sense
the
amount
of
light
and
send
signals
to
the
pineal
glands
which
produce
melatonin
which
signals
at
kisspeptin
and
kisspeptin
will
allow
the
release
of
GNRH
allowing
her
to
cycle
In
lactational
anestrus
what
causes
LH
to
be
low
-
ANS-Lots
of
suckling
sessions
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