CLC CERTIFIED LACTATION CONSULTANT
EXAM – 100 Q&A (2026 Edition)
All correct answers marked with: ✅✅
1–20: Anatomy & Physiology of Lactation
1. What hormone is primarily responsible for milk ejection (let-down) reflex?
o Oxytocin
o Prolactin
o Estrogen
o Cortisol
2. Which hormone stimulates milk production?
o Prolactin
o Oxytocin
o Progesterone
o Aldosterone
3. Where is milk primarily produced in the breast?
o Alveoli
o Ducts
o Nipple pores
o Fatty tissue
4. Which cells contract to push milk down the ducts?
o Myoepithelial cells
o Beta cells
, o Parietal cells
o Fibroblasts
5. Colostrum is highest in which nutrient?
o Immunoglobulins (IgA)
o Fat
o Iron
o Folate
6. What is the average number of milk ducts at the nipple?
o 9–12 ducts
o 2–3 ducts
o 15–20 ducts
o 30 ducts
7. Which vitamin is lowest in breast milk?
o Vitamin D
o Vitamin C
o Vitamin A
o Vitamin E
8. What is the main carbohydrate in human milk?
o Lactose
o Glucose
o Sucrose
o Maltose
9. Foremilk is typically higher in which component?
o Water/content for hydration
o Fat
o Protein
, o Minerals
10. Hindmilk is richer in:
o Fat
o Carbohydrates
o Protein
o Water
11. Primary reason newborns need frequent feeds:
o Small stomach capacity
o Low hunger hormones
o High caloric needs
o Digestive immaturity
12. Which hormone increases during nighttime feeding?
o Prolactin
o Testosterone
o Estrogen
o Insulin
13. Breast milk composition adapts based on:
o Infant needs and feeding frequency
o Mother's age
o Mother’s height
o Birth order
14. Exclusive breastfeeding is recommended for:
o First 6 months of life
o 3 months
o 4 months
o 12 months
, 15. Which type of milk is produced in late pregnancy?
o Colostrum
o Transitional milk
o Mature milk
o Foremilk
16. Transitional milk lasts approximately:
o 7–14 days postpartum
o 1–2 days
o 1 month
o 6 weeks
17. Milk supply is primarily controlled by:
o Supply and demand feedback loop
o Maternal weight
o Daily water intake
o Baby’s birth weight
18. Which structure transports milk to the nipple?
o Lactiferous ducts
o Alveoli
o Mammary sinus
o Lobules
19. High-protein milk produced during illness is called:
o Immune milk (increased IgA)
o Transitional milk
o Foremilk
o Pre-milk
20. Milk ejection can be inhibited by:
EXAM – 100 Q&A (2026 Edition)
All correct answers marked with: ✅✅
1–20: Anatomy & Physiology of Lactation
1. What hormone is primarily responsible for milk ejection (let-down) reflex?
o Oxytocin
o Prolactin
o Estrogen
o Cortisol
2. Which hormone stimulates milk production?
o Prolactin
o Oxytocin
o Progesterone
o Aldosterone
3. Where is milk primarily produced in the breast?
o Alveoli
o Ducts
o Nipple pores
o Fatty tissue
4. Which cells contract to push milk down the ducts?
o Myoepithelial cells
o Beta cells
, o Parietal cells
o Fibroblasts
5. Colostrum is highest in which nutrient?
o Immunoglobulins (IgA)
o Fat
o Iron
o Folate
6. What is the average number of milk ducts at the nipple?
o 9–12 ducts
o 2–3 ducts
o 15–20 ducts
o 30 ducts
7. Which vitamin is lowest in breast milk?
o Vitamin D
o Vitamin C
o Vitamin A
o Vitamin E
8. What is the main carbohydrate in human milk?
o Lactose
o Glucose
o Sucrose
o Maltose
9. Foremilk is typically higher in which component?
o Water/content for hydration
o Fat
o Protein
, o Minerals
10. Hindmilk is richer in:
o Fat
o Carbohydrates
o Protein
o Water
11. Primary reason newborns need frequent feeds:
o Small stomach capacity
o Low hunger hormones
o High caloric needs
o Digestive immaturity
12. Which hormone increases during nighttime feeding?
o Prolactin
o Testosterone
o Estrogen
o Insulin
13. Breast milk composition adapts based on:
o Infant needs and feeding frequency
o Mother's age
o Mother’s height
o Birth order
14. Exclusive breastfeeding is recommended for:
o First 6 months of life
o 3 months
o 4 months
o 12 months
, 15. Which type of milk is produced in late pregnancy?
o Colostrum
o Transitional milk
o Mature milk
o Foremilk
16. Transitional milk lasts approximately:
o 7–14 days postpartum
o 1–2 days
o 1 month
o 6 weeks
17. Milk supply is primarily controlled by:
o Supply and demand feedback loop
o Maternal weight
o Daily water intake
o Baby’s birth weight
18. Which structure transports milk to the nipple?
o Lactiferous ducts
o Alveoli
o Mammary sinus
o Lobules
19. High-protein milk produced during illness is called:
o Immune milk (increased IgA)
o Transitional milk
o Foremilk
o Pre-milk
20. Milk ejection can be inhibited by:
