CERTIFIED LACTATION CONSULTANT EXAM
CONCEPT REVIEW GUIDE 2026 COUNSELING
COMMUNICATION AND MATERNAL SUPPORT
STRATEGIES
◉ What are the 3 stages of early breast development?
Answer: 1. In utero
2. First 2 months of life
3. Puberty
◉ Breast development during menstruation
Answer: - Estrogen: Induces Ductal System development
- Progesterone: Induces Lobular-Alveolar development
◉ What is Lactogenesis?
Answer: The initiation of milk production
◉ How many stages of Lactogensis are there?
Answer: 4
◉ What stages of Lactogenesis occur during pregnancy?
,Answer: 1 and 2
◉ Lactogenesis 1
Answer: Ductal and Lobular-Alveolar systems grow at an accelerated
rate (influenced by hormones)
- breasts enlarge
- high progesterone levels cause an increase in alveoli
- colostrum begins to produce in the alveoli
◉ When does Lactogenesis 1 occur?
Answer: around 16 weeks
◉ Lactogenesis 2
Answer: The placenta is released from the uterus and progesterone
levels drop
- this causes the alveolar cells to begin to release milk and allows
them to continue to produce more milk
◉ How long does Lactogenesis 2 last?
Answer: 2-4 days
◉ What are the 5 main areas of the breast?
, Answer: - Upper Inner
- Lower Inner
- Upper Outer
- Lower Outer
- Tail of Spence
◉ What are the 2 types of breast tissue and what are they composed
of?
Answer: - Parenchyma: ductal and lobular-alveolar structures
- Strom: connective tissue (fat, vascular, nerve, lymphatic)
◉ What is an Alveolus
Answer: Small cavity where milk is produced and stored
- made of epithelial cells
◉ What are Alveoli?
Answer: multiple alveolus
◉ What is the Intra-lobular duct?
Answer: Connects a lobule to the lactiferous ducts
◉ What is a Mammary Lobule?
CONCEPT REVIEW GUIDE 2026 COUNSELING
COMMUNICATION AND MATERNAL SUPPORT
STRATEGIES
◉ What are the 3 stages of early breast development?
Answer: 1. In utero
2. First 2 months of life
3. Puberty
◉ Breast development during menstruation
Answer: - Estrogen: Induces Ductal System development
- Progesterone: Induces Lobular-Alveolar development
◉ What is Lactogenesis?
Answer: The initiation of milk production
◉ How many stages of Lactogensis are there?
Answer: 4
◉ What stages of Lactogenesis occur during pregnancy?
,Answer: 1 and 2
◉ Lactogenesis 1
Answer: Ductal and Lobular-Alveolar systems grow at an accelerated
rate (influenced by hormones)
- breasts enlarge
- high progesterone levels cause an increase in alveoli
- colostrum begins to produce in the alveoli
◉ When does Lactogenesis 1 occur?
Answer: around 16 weeks
◉ Lactogenesis 2
Answer: The placenta is released from the uterus and progesterone
levels drop
- this causes the alveolar cells to begin to release milk and allows
them to continue to produce more milk
◉ How long does Lactogenesis 2 last?
Answer: 2-4 days
◉ What are the 5 main areas of the breast?
, Answer: - Upper Inner
- Lower Inner
- Upper Outer
- Lower Outer
- Tail of Spence
◉ What are the 2 types of breast tissue and what are they composed
of?
Answer: - Parenchyma: ductal and lobular-alveolar structures
- Strom: connective tissue (fat, vascular, nerve, lymphatic)
◉ What is an Alveolus
Answer: Small cavity where milk is produced and stored
- made of epithelial cells
◉ What are Alveoli?
Answer: multiple alveolus
◉ What is the Intra-lobular duct?
Answer: Connects a lobule to the lactiferous ducts
◉ What is a Mammary Lobule?
