ALPP CERTIFIED LACTATION COUNSELOR (CLC)
EXAM Comprehensive Study Guide |
2025/2026 Edition 300 Verified Questions &
Correct Answers | 3 Versions Included
Section 1: Anatomy & Physiology of Lactation
Question 1
Which hormone is primarily responsible for milk production (lactogenesis)?
A. Oxytocin
B. Prolactin
C. Estrogen
D. Progesterone
Answer: B. PROLACTIN
Rationale: Prolactin is the primary hormone responsible for milk production. It is
secreted by the anterior pituitary gland and stimulates the alveolar cells to
produce milk. Oxytocin is responsible for the let-down reflex, which releases the
milk. Prolactin levels rise during nursing and fall between feeds.
Question 2
Which hormone is responsible for the milk ejection reflex (let-down)?
A. Prolactin
B. Oxytocin
C. Human Placental Lactogen
D. Progesterone
Answer: B. OXYTOCIN
,Rationale: Oxytocin is produced by the posterior pituitary gland and causes the
myoepithelial cells surrounding the alveoli to contract, ejecting milk into the ducts.
Stress, anxiety, and pain can inhibit the release of oxytocin, impairing the let-down
reflex.
Question 3
What is the correct order of the anatomy of the human breast from the milk-
producing cells outward?
A. Alveolar cells → Alveoli → Small ducts → Milk ducts → Nipple
B. Milk ducts → Alveoli → Alveolar cells → Nipple
C. Nipple → Milk ducts → Alveoli → Alveolar cells
D. Alveolar cells → Myoepithelial cells → Connective tissue → Areola
Answer: A. ALVEOLAR CELLS → ALVEOLI → SMALL DUCTS → MILK DUCTS →
NIPPLE
Rationale: Milk is produced in the alveolar cells, which are clustered together in
grape-like structures called alveoli. From the alveoli, milk passes through small
ducts that converge into larger milk ducts, which eventually exit through the
nipple. The breast also contains connective tissue, fat, areola, and capillaries.
Question 4
Colostrum is characterized by which of the following?
A. High fat and low protein content
B. High protein and low fat content, rich in immunoglobulins
C. High carbohydrate and low fat content
D. Same composition as mature milk
Answer: B. HIGH PROTEIN AND LOW FAT CONTENT, RICH IN
IMMUNOGLOBULINS
, Rationale: Colostrum is the first milk produced in the late stages of pregnancy and
the first few days postpartum. It is thick, yellowish, and rich in antibodies
(especially IgA), proteins, and vitamins, while being lower in fat and carbohydrates
compared to mature milk. It provides essential immune protection to the newborn.
Question 5
The myoepithelial cells of the breast are responsible for:
A. Producing milk
B. Contracting to eject milk from the alveoli
C. Producing prolactin
D. Storing milk in the breast
Answer: B. CONTRACTING TO EJECT MILK FROM THE ALVEOLI
Rationale: Myoepithelial cells surround the alveolar cells and milk ducts. When
stimulated by oxytocin, they contract and squeeze milk from the alveoli into the
duct system, facilitating milk ejection (let-down).
Question 6
What happens to prolactin levels during and immediately after a nursing session?
A. They decrease during nursing and rise between feeds
B. They remain constant throughout
C. They rise during nursing and fall between feeds
D. They are unaffected by infant feeding
Answer: C. THEY RISE DURING NURSING AND FALL BETWEEN FEEDS
Rationale: Prolactin levels rise during a nursing session in response to nipple
stimulation and fall between feeds. This hormonal pattern helps maintain
adequate milk production over time. A drop in prolactin between feeds allows the
next feeding to stimulate a new surge.
EXAM Comprehensive Study Guide |
2025/2026 Edition 300 Verified Questions &
Correct Answers | 3 Versions Included
Section 1: Anatomy & Physiology of Lactation
Question 1
Which hormone is primarily responsible for milk production (lactogenesis)?
A. Oxytocin
B. Prolactin
C. Estrogen
D. Progesterone
Answer: B. PROLACTIN
Rationale: Prolactin is the primary hormone responsible for milk production. It is
secreted by the anterior pituitary gland and stimulates the alveolar cells to
produce milk. Oxytocin is responsible for the let-down reflex, which releases the
milk. Prolactin levels rise during nursing and fall between feeds.
Question 2
Which hormone is responsible for the milk ejection reflex (let-down)?
A. Prolactin
B. Oxytocin
C. Human Placental Lactogen
D. Progesterone
Answer: B. OXYTOCIN
,Rationale: Oxytocin is produced by the posterior pituitary gland and causes the
myoepithelial cells surrounding the alveoli to contract, ejecting milk into the ducts.
Stress, anxiety, and pain can inhibit the release of oxytocin, impairing the let-down
reflex.
Question 3
What is the correct order of the anatomy of the human breast from the milk-
producing cells outward?
A. Alveolar cells → Alveoli → Small ducts → Milk ducts → Nipple
B. Milk ducts → Alveoli → Alveolar cells → Nipple
C. Nipple → Milk ducts → Alveoli → Alveolar cells
D. Alveolar cells → Myoepithelial cells → Connective tissue → Areola
Answer: A. ALVEOLAR CELLS → ALVEOLI → SMALL DUCTS → MILK DUCTS →
NIPPLE
Rationale: Milk is produced in the alveolar cells, which are clustered together in
grape-like structures called alveoli. From the alveoli, milk passes through small
ducts that converge into larger milk ducts, which eventually exit through the
nipple. The breast also contains connective tissue, fat, areola, and capillaries.
Question 4
Colostrum is characterized by which of the following?
A. High fat and low protein content
B. High protein and low fat content, rich in immunoglobulins
C. High carbohydrate and low fat content
D. Same composition as mature milk
Answer: B. HIGH PROTEIN AND LOW FAT CONTENT, RICH IN
IMMUNOGLOBULINS
, Rationale: Colostrum is the first milk produced in the late stages of pregnancy and
the first few days postpartum. It is thick, yellowish, and rich in antibodies
(especially IgA), proteins, and vitamins, while being lower in fat and carbohydrates
compared to mature milk. It provides essential immune protection to the newborn.
Question 5
The myoepithelial cells of the breast are responsible for:
A. Producing milk
B. Contracting to eject milk from the alveoli
C. Producing prolactin
D. Storing milk in the breast
Answer: B. CONTRACTING TO EJECT MILK FROM THE ALVEOLI
Rationale: Myoepithelial cells surround the alveolar cells and milk ducts. When
stimulated by oxytocin, they contract and squeeze milk from the alveoli into the
duct system, facilitating milk ejection (let-down).
Question 6
What happens to prolactin levels during and immediately after a nursing session?
A. They decrease during nursing and rise between feeds
B. They remain constant throughout
C. They rise during nursing and fall between feeds
D. They are unaffected by infant feeding
Answer: C. THEY RISE DURING NURSING AND FALL BETWEEN FEEDS
Rationale: Prolactin levels rise during a nursing session in response to nipple
stimulation and fall between feeds. This hormonal pattern helps maintain
adequate milk production over time. A drop in prolactin between feeds allows the
next feeding to stimulate a new surge.
