PCE CERTIFIED BREASTFEEDING COUNSELOR (CBC) EXAM –
COMPLETE PRACTICE EXAM 2026/2027 |
250+ Verified Questions with Detailed Rationales | Latest Update |
A+ Graded
DOMAIN 1: LACTATION ANATOMY & PHYSIOLOGY (Questions 1–80)
1. Where is milk produced in the breast?
A) Lactiferous ducts
B) Montgomery glands
C) Alveoli
D) Areola
Answer C: Alveoli
Rationale: Alveoli are grape-like clusters of milk-producing cells
where milk is synthesized.
,2. Which cells contract to eject milk from the alveoli during the let-
down reflex?
A) Epithelial cells
B) Myoepithelial cells
C) Adipocytes
D) Plasma cells
Answer B: Myoepithelial cells
Rationale: Myoepithelial cells encase the alveoli and contract in
response to oxytocin, squeezing milk into the ducts.
3. Which hormone is primarily responsible for milk ejection (let-
down)?
A) Prolactin
B) Estrogen
C) Oxytocin
D) Progesterone
Answer C: Oxytocin
,Rationale: Oxytocin causes myoepithelial cells around the alveoli to
contract, ejecting milk (let-down reflex).
4. Which hormone is primarily responsible for milk synthesis
(production)?
A) Prolactin
B) Oxytocin
C) Estrogen
D) Relaxin
Answer A: Prolactin
Rationale: Prolactin stimulates alveolar cells to produce milk; levels
increase in response to nipple stimulation.
5. What is the correct order of the stages of breast development?
A) Mammogenesis, Lactogenesis I, Lactogenesis II, Embryogenesis
B) Embryogenesis, Mammogenesis, Lactogenesis I, Lactogenesis II
C) Embryogenesis, Mammogenesis, Lactogenesis I, Lactogenesis II
D) Lactogenesis I, Embryogenesis, Mammogenesis, Lactogenesis II
, Answer C: Embryogenesis, Mammogenesis, Lactogenesis I,
Lactogenesis II
Rationale: Breast development follows embryogenesis (prenatal),
mammogenesis (puberty/pregnancy), Lactogenesis I (mid-
pregnancy), and Lactogenesis II (postpartum).
6. The lobules and ducts in the breast have which functions?
A) Lobules produce milk; ducts transport it to the nipple
B) Lobules produce hormones; ducts circulate blood
C) Lobules store fat; ducts provide structural support
D) Lobules and ducts protect against infection
Answer A: Lobules produce milk; ducts transport it to the nipple
Rationale: Lobules are the milk-producing units; ducts transport milk
from the lobules to the nipple.
7. Where does breast tissue normally develop?
A) Along the sternum
B) Along the breast line – from under the arms down to the groin
C) Only in the chest area
COMPLETE PRACTICE EXAM 2026/2027 |
250+ Verified Questions with Detailed Rationales | Latest Update |
A+ Graded
DOMAIN 1: LACTATION ANATOMY & PHYSIOLOGY (Questions 1–80)
1. Where is milk produced in the breast?
A) Lactiferous ducts
B) Montgomery glands
C) Alveoli
D) Areola
Answer C: Alveoli
Rationale: Alveoli are grape-like clusters of milk-producing cells
where milk is synthesized.
,2. Which cells contract to eject milk from the alveoli during the let-
down reflex?
A) Epithelial cells
B) Myoepithelial cells
C) Adipocytes
D) Plasma cells
Answer B: Myoepithelial cells
Rationale: Myoepithelial cells encase the alveoli and contract in
response to oxytocin, squeezing milk into the ducts.
3. Which hormone is primarily responsible for milk ejection (let-
down)?
A) Prolactin
B) Estrogen
C) Oxytocin
D) Progesterone
Answer C: Oxytocin
,Rationale: Oxytocin causes myoepithelial cells around the alveoli to
contract, ejecting milk (let-down reflex).
4. Which hormone is primarily responsible for milk synthesis
(production)?
A) Prolactin
B) Oxytocin
C) Estrogen
D) Relaxin
Answer A: Prolactin
Rationale: Prolactin stimulates alveolar cells to produce milk; levels
increase in response to nipple stimulation.
5. What is the correct order of the stages of breast development?
A) Mammogenesis, Lactogenesis I, Lactogenesis II, Embryogenesis
B) Embryogenesis, Mammogenesis, Lactogenesis I, Lactogenesis II
C) Embryogenesis, Mammogenesis, Lactogenesis I, Lactogenesis II
D) Lactogenesis I, Embryogenesis, Mammogenesis, Lactogenesis II
, Answer C: Embryogenesis, Mammogenesis, Lactogenesis I,
Lactogenesis II
Rationale: Breast development follows embryogenesis (prenatal),
mammogenesis (puberty/pregnancy), Lactogenesis I (mid-
pregnancy), and Lactogenesis II (postpartum).
6. The lobules and ducts in the breast have which functions?
A) Lobules produce milk; ducts transport it to the nipple
B) Lobules produce hormones; ducts circulate blood
C) Lobules store fat; ducts provide structural support
D) Lobules and ducts protect against infection
Answer A: Lobules produce milk; ducts transport it to the nipple
Rationale: Lobules are the milk-producing units; ducts transport milk
from the lobules to the nipple.
7. Where does breast tissue normally develop?
A) Along the sternum
B) Along the breast line – from under the arms down to the groin
C) Only in the chest area
