Free CBC Lactation Physiology & Anatomy Questions and Answers

Question 1

Which hormone is primarily responsible for milk production in lactating mothers?

Accepted Answer

Prolactin

Answer

Prolactin is the primary hormone responsible for stimulating the production of milk in the mammary glands after childbirth. Its levels increase significantly during pregnancy and remain elevated with frequent suckling, signaling the body to continuously produce breast milk. Oxytocin, in contrast, is responsible for milk ejection.

Question 2

What is the primary function of oxytocin in breastfeeding?

Accepted Answer

Triggers the milk ejection reflex (let-down).

Answer

Oxytocin is a crucial hormone in breastfeeding that causes the myoepithelial cells around the alveoli to contract, pushing milk through the ducts towards the nipple. This process, known as the milk ejection reflex or "let-down," makes milk available to the baby. While prolactin produces milk, oxytocin releases it.

Question 3

What is the role of the alveoli in the mammary glands?

Accepted Answer

Produce and store breast milk.

Answer

The alveoli are tiny, grape-like sacs within the mammary glands where breast milk is produced by specialized cells. They also serve as storage units for the milk until it is released during a feeding. This intricate structure is essential for the synthesis and temporary holding of milk.

Question 4

Which anatomical structure delivers milk from the alveoli to the nipple?

Accepted Answer

Lactiferous ducts

Answer

Lactiferous ducts are a network of small tubes that transport breast milk from the alveoli, where it is produced and stored, to the nipple. These ducts widen into lactiferous sinuses just beneath the areola, acting as reservoirs before the milk exits the nipple pores. They are the primary conduits for milk delivery.

Question 5

What role does colostrum play in the early days of breastfeeding?

Accepted Answer

It provides essential antibodies and nutrients.

Answer

Colostrum, often called "liquid gold," is the first milk produced by the mother and is rich in antibodies, immunoglobulins, and white blood cells that provide crucial immune protection for the newborn. It also contains concentrated nutrients, acting as a natural vaccine and helping to establish a healthy gut microbiome.

CBC - Certified Breastfeeding Counselor Practice Test

CBC - Certified Breastfeeding Counselor Practice Test

Free CBC Lactation Physiology & Anatomy Questions and Answers