CERTIFIED BREASTFEEDING COUNSELOR EXAM 2026/2027
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Breastfeeding Anatomy & Physiology
Q1: A mother asks when her milk will "come in" after giving birth. Which stage of
lactogenesis describes this process occurring around days 2-3 postpartum?
A. Lactogenesis Stage I
B. Lactogenesis Stage II [CORRECT]
C. Lactogenesis Stage III
D. Galactopoiesis
Correct Answer: B
Rationale: Lactogenesis Stage II (secretory activation) occurs 2-3 days postpartum
when progesterone drops and milk volume increases—what mothers call "milk coming
in." Option A (Stage I) begins mid-pregnancy. Option C (Stage III) is maintenance of milk
production. Option D is the same as Stage III.
Q2: Which hormone is primarily responsible for milk synthesis in the alveoli during
lactation?
A. Oxytocin
B. Prolactin [CORRECT]
,C. Estrogen
D. Progesterone
Correct Answer: B
Rationale: Prolactin from the anterior pituitary stimulates milk synthesis in alveolar
cells. Option A (oxytocin) causes milk ejection/let-down. Options C and D suppress
lactation during pregnancy.
Q3: A mother experiences milk ejection when she hears her baby cry in another room.
Which hormone mediates this reflex?
A. Prolactin
B. Oxytocin [CORRECT]
C. Human growth hormone
D. Cortisol
Correct Answer: B
Rationale: Oxytocin from the posterior pituitary causes milk ejection (let-down) reflex,
triggered by baby's cry, nipple stimulation, or even thinking about baby. Option A
maintains milk production but doesn't cause ejection. Options C and D are not primary
lactation hormones.
Q4: Which anatomical structure produces the lubricating secretion that helps with latch
and protects the nipple during breastfeeding?
A. Mammary ducts
,B. Montgomery glands [CORRECT]
C. Cooper's ligaments
D. Lactiferous sinuses
Correct Answer: B
Rationale: Montgomery glands (areolar glands) secrete lubricating oil that protects the
nipple and provides scent cues for the newborn. Option A transports milk. Option C
supports breast structure. Option D stores milk near the nipple.
Q5: During pregnancy, high levels of which hormones suppress full lactation until after
delivery?
A. Prolactin and oxytocin
B. Estrogen and progesterone [CORRECT]
C. Insulin and glucagon
D. Thyroid hormone and cortisol
Correct Answer: B
Rationale: High estrogen and progesterone during pregnancy antagonize prolactin's
effects on milk production; their rapid drop after placental delivery triggers lactogenesis
Stage II. Options A stimulate lactation. Options C and D are not primary suppressors.
Q6: Which nerve pathway is essential for the milk ejection reflex?
A. Trigeminal nerve stimulation from facial touch
, B. Sensory nerves from nipple/areola to hypothalamus triggering oxytocin release
[CORRECT]
C. Vagus nerve stimulation from abdominal pressure
D. Optic nerve from visual cues only
Correct Answer: B
Rationale: Tactile stimulation of nipple/areola sends signals via sensory nerves to the
hypothalamus, causing posterior pituitary oxytocin release. Options A, C, and D are not
the primary pathways.
Q7: A mother is anxious and in pain during breastfeeding. Which effect might this have
on milk transfer?
A. Increased prolactin levels
B. Inhibition of oxytocin release and impaired milk ejection [CORRECT]
C. Increased milk production
D. Faster milk flow
Correct Answer: B
Rationale: Stress, pain, and anxiety inhibit oxytocin release via sympathetic activation,
impairing let-down and milk transfer. Options A, C, and D are opposite of expected
effects.
Q8: Which structure in the breast stores milk immediately before ejection?
A. Alveoli
| 100% Correct Questions and Answers | CBC Certification
Prep | Pass Guaranteed - A+ Graded
Breastfeeding Anatomy & Physiology
Q1: A mother asks when her milk will "come in" after giving birth. Which stage of
lactogenesis describes this process occurring around days 2-3 postpartum?
A. Lactogenesis Stage I
B. Lactogenesis Stage II [CORRECT]
C. Lactogenesis Stage III
D. Galactopoiesis
Correct Answer: B
Rationale: Lactogenesis Stage II (secretory activation) occurs 2-3 days postpartum
when progesterone drops and milk volume increases—what mothers call "milk coming
in." Option A (Stage I) begins mid-pregnancy. Option C (Stage III) is maintenance of milk
production. Option D is the same as Stage III.
Q2: Which hormone is primarily responsible for milk synthesis in the alveoli during
lactation?
A. Oxytocin
B. Prolactin [CORRECT]
,C. Estrogen
D. Progesterone
Correct Answer: B
Rationale: Prolactin from the anterior pituitary stimulates milk synthesis in alveolar
cells. Option A (oxytocin) causes milk ejection/let-down. Options C and D suppress
lactation during pregnancy.
Q3: A mother experiences milk ejection when she hears her baby cry in another room.
Which hormone mediates this reflex?
A. Prolactin
B. Oxytocin [CORRECT]
C. Human growth hormone
D. Cortisol
Correct Answer: B
Rationale: Oxytocin from the posterior pituitary causes milk ejection (let-down) reflex,
triggered by baby's cry, nipple stimulation, or even thinking about baby. Option A
maintains milk production but doesn't cause ejection. Options C and D are not primary
lactation hormones.
Q4: Which anatomical structure produces the lubricating secretion that helps with latch
and protects the nipple during breastfeeding?
A. Mammary ducts
,B. Montgomery glands [CORRECT]
C. Cooper's ligaments
D. Lactiferous sinuses
Correct Answer: B
Rationale: Montgomery glands (areolar glands) secrete lubricating oil that protects the
nipple and provides scent cues for the newborn. Option A transports milk. Option C
supports breast structure. Option D stores milk near the nipple.
Q5: During pregnancy, high levels of which hormones suppress full lactation until after
delivery?
A. Prolactin and oxytocin
B. Estrogen and progesterone [CORRECT]
C. Insulin and glucagon
D. Thyroid hormone and cortisol
Correct Answer: B
Rationale: High estrogen and progesterone during pregnancy antagonize prolactin's
effects on milk production; their rapid drop after placental delivery triggers lactogenesis
Stage II. Options A stimulate lactation. Options C and D are not primary suppressors.
Q6: Which nerve pathway is essential for the milk ejection reflex?
A. Trigeminal nerve stimulation from facial touch
, B. Sensory nerves from nipple/areola to hypothalamus triggering oxytocin release
[CORRECT]
C. Vagus nerve stimulation from abdominal pressure
D. Optic nerve from visual cues only
Correct Answer: B
Rationale: Tactile stimulation of nipple/areola sends signals via sensory nerves to the
hypothalamus, causing posterior pituitary oxytocin release. Options A, C, and D are not
the primary pathways.
Q7: A mother is anxious and in pain during breastfeeding. Which effect might this have
on milk transfer?
A. Increased prolactin levels
B. Inhibition of oxytocin release and impaired milk ejection [CORRECT]
C. Increased milk production
D. Faster milk flow
Correct Answer: B
Rationale: Stress, pain, and anxiety inhibit oxytocin release via sympathetic activation,
impairing let-down and milk transfer. Options A, C, and D are opposite of expected
effects.
Q8: Which structure in the breast stores milk immediately before ejection?
A. Alveoli
