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IBCLC Exam 1 With Questions and Complete Solutions Latest Update
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IBCLC Exam 1 With Questions and Complete Solutions Latest Update
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IBCLCExam
#1
What
week
gestation
does
the
breast
begin
to
develop
in
utero?
-
ANS
*4th*
week
of
gestation
Where
does
the
primitive
milk
streak
develop
-
ANS
Bilaterally
from
the
axilla
to
the
groin
By
the
5th
week
gestation
the
milk
streak
becomes
what?
-
ANS
Mammary
Milk
Ridge
(or
milk
line)
Thickening
and
inward
growth
into
the
chest
wall
continues
during
what
weeks
gestation?
-
ANS
*7-8*
weeks
gestation
Between
weeks
12
and
16
gestation
specialized
cells
differentiate
into
what?
-
ANS
Smooth
muscles
of
the
nipple
and
areola
What
forms
the
mammary
pit?
-
ANS
Lactiferous
ducts
and
their
branches
open
into
a
shallow
epithelial
depression
What
failure
creates
an
inverted
nipple?
-
ANS
When
the
Mammary
pit
fails
to
elevate
What
is
witches
milk?
-
ANS
After
birth,
a
neonate's
mammary
tissue
(under
the
influence
of
maternal
hormones)
might
recreate
colostral
like
fluid
At
what
age
do
the
primary
and
secondary
ducts
grow
and
divide
and
form
the
terminal
end
buds
that
become
the
alveoli?
-
ANS
10-12
years
old
(puberty)
When
does
*complete*
development
of
mammary
function
occur?
-
ANS
During
pregnancy
What
is
superficial
fiscia?
-
ANS
Fibrous
tissue
beneath
the
skin
Where
is
the
breast
located?
-
ANS
In
the
superficial
fascia
between
the
*2nd
rib
and
6th
ICS*
What
are
the
two
major
divisions
of
the
breast?
-
ANS
Parenchyma
and
Stroma What
makes
up
the
Parenchyma?
-
ANS
Ducts,
lobes,
and
aveoli
What
are
alveoli?
-
ANS
Small
sacs
where
milk
is
secreted
What
makes
up
the
Stroma?
-
ANS
Connective
and
fat
tissue,
blood
vessels,
nerves,
and
lymphatics.
What
is
Cooper's
Ligament?
-
ANS
Suspensory
ligament
that
are
the
fibrous
connections
between
the
inner
side
of
the
breast
skin
and
pectoral
muscles.
Help
to
shape
the
breasts
What
does
the
nipple
contain?
-
ANS
15-25
milk
ducts,
smooth
muscle
fibers,
sebaceous
and
apocrine
sweat
glands,
and
dense
innervations
of
sensory
nerve
endings
How
many
milk
ducts
does
the
nipple
contain?
-
ANS
15-25
What
are
Montgomery
Tubercles?
-
ANS
Sebaceous
glands
in
the
areola
surrounding
the
nipple
What
do
the
Montgomery
Tubercles
secrete?
-
ANS
*Oily
secretions*
(lipoid
fluid)
to
keep
the
areola
and
the
nipple
lubricated
and
protected
What
2
arteries
supply
blood
to
the
breast
(60%
/
30%)?
-
ANS
Internal
mammary
artery
(60%)
and
lateral
thoracic
artery
(30%)
Where
does
the
lymphatic
system
of
the
breast
drain
excess
fluids
from
tissue
space,
bacteria
and
cast
off
cells?
-
ANS
Auxiliary
lymph
node
Where
do
the
nerves
of
the
breast
branch
from?
-
ANS
4th,
5th,
and
6th
intercostal
nerve
What
nerve
supplies
the
greatest
amount
of
*sensation*
to
the
areola?
-
ANS
*4th*
intercostal
nerve
What
part
of
the
breast
is
most
sensitive?
-
ANS
The
areola
followed
by
the
general
skin
of
the
breast,
and
then
the
nipple
which
is
least
sensitive.
What
percent
of
breast
milk
is
*carbohydrates*?
-
ANS
Approximately
7% What
are
the
six
infant
behavioral
"states"
-
ANS
*Crying*
*Active
alert*=fussy
*Quiet
alert*=ready
to
play
*Drowsy*=
irreg.
breathing,
heavy
eyes
*Active
sleep*=
eye
movement
under
lids,
twitching
*Quiet
sleep*=
reg
resp.
relaxed,
diff.
to
wake
Milk
components
that
protect
the
infant/lactating
breast
actively
bind
______,
preventing
their
passage
through
the
permeable
infant
_____
_____
-
ANS
pathogens
gut
mucosa
How
does
the
infant
get
the
antibodies
produced
by
mom?
-
ANS
antibodies
are
produced
in
moms
blood,
targeted
*SIgA*
which
is
transported
across
the
mammary
secretory
cells
and
released
in
the
milk.
What
is
sIgA?
-
ANS
Immunoglobulin
A
is
an
antibody
that
coats
mucosal
surfaces
to
prevent
adherence
and
penetration
by
pathogens
What
are
the
most
common
food
allergies?
-
ANS
1.
Cow's
milk
protein
2.
Eggs
3.
Peanuts
4.
Tree
nuts
5.
Fish
6.
Shellfish
7.
Soy
8.
Wheat
What
are
the
common
symptoms
of
food
allergies?
-
ANS
1.
Eczema
2.
Hives
3.
Digestive
or
respiratory
problems
(e.g.
mucus
or
blood
in
the
stool)
The
infant
uses
their
_____
to
draw
in
the
nipple
and
____
it
in
the
mouth
-
ANS
Lips
Stabilize
Weak
lip
tone
is
also
called?
-
ANS
*Hypotonic
lips*
result
in
the
inability
to
seal
lips
around
the
breast
impacting
the
amount
of
suction
created
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