J
CERTIFIED BREASTFEEDING
COUNSELOR CBC QUESTIONS AND
ANSWERS
Where does breast tissue normally develop? - Along the breast line
- located from under the arms down to the groin
What are the 3 stages of early breast development? - 1. In utero
2. First 2 months of life
3. Puberty
Breast development during menstruation - - Estrogen: Induces Ductal System development
- Progesterone: Induces Lobular-Alveolar development
What is Lactogenesis? - The initiation of milk production
How many stages of Lactogensis are there? - 4
What stages of Lactogenesis occur during pregnancy? - 1 and 2
Lactogenesis 1 - 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? - around 16 weeks
Lactogenesis 2 - 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? - 2-4 days
What are the 5 main areas of the breast? - - 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? - - Parenchyma: ductal and
lobular-alveolar structures
- Strom: connective tissue (fat, vascular, nerve, lymphatic)
What is an Alveolus - Small cavity where milk is produced and stored
- made of epithelial cells
What are Alveoli? - multiple alveolus
What is the Intra-lobular duct? - Connects a lobule to the lactiferous ducts
What is a Mammary Lobule? - 10-100 alveoli combined together
What are Lactiferous Ducts? - connects mammary lobules/intra-lobular ducts to the nipple
Breast Anatomy -
What surrounds the breast tissue? - Fat
Nerves
Lymph Tissue
Vascular Network
Myoepithelial Cells
What is the purpose of the Myoepithelial cells? - They surround the alveolus and contract (like a muscle)
- pushes milk out into the ducts
What is the purpose of the Vascular Network surrounding breast tissue? - - supplies nutrients, materials,
hormones to each alveolus for milk production
- supplies hormones to the myoepithelial cells for ejection of milk
What is the purpose of fat surrounding breast tissue? - protection
support
provides space for growth
What purpose do nerves serve in the breasts? - Intercostal nerves 3, 4 and 5 deal with breast tissue
- innervation to the nipple tells the brain to produce oxytocin when breast feeding
- emptying of the alveolus tells the breast to make more milk
CERTIFIED BREASTFEEDING
COUNSELOR CBC QUESTIONS AND
ANSWERS
Where does breast tissue normally develop? - Along the breast line
- located from under the arms down to the groin
What are the 3 stages of early breast development? - 1. In utero
2. First 2 months of life
3. Puberty
Breast development during menstruation - - Estrogen: Induces Ductal System development
- Progesterone: Induces Lobular-Alveolar development
What is Lactogenesis? - The initiation of milk production
How many stages of Lactogensis are there? - 4
What stages of Lactogenesis occur during pregnancy? - 1 and 2
Lactogenesis 1 - 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? - around 16 weeks
Lactogenesis 2 - 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? - 2-4 days
What are the 5 main areas of the breast? - - 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? - - Parenchyma: ductal and
lobular-alveolar structures
- Strom: connective tissue (fat, vascular, nerve, lymphatic)
What is an Alveolus - Small cavity where milk is produced and stored
- made of epithelial cells
What are Alveoli? - multiple alveolus
What is the Intra-lobular duct? - Connects a lobule to the lactiferous ducts
What is a Mammary Lobule? - 10-100 alveoli combined together
What are Lactiferous Ducts? - connects mammary lobules/intra-lobular ducts to the nipple
Breast Anatomy -
What surrounds the breast tissue? - Fat
Nerves
Lymph Tissue
Vascular Network
Myoepithelial Cells
What is the purpose of the Myoepithelial cells? - They surround the alveolus and contract (like a muscle)
- pushes milk out into the ducts
What is the purpose of the Vascular Network surrounding breast tissue? - - supplies nutrients, materials,
hormones to each alveolus for milk production
- supplies hormones to the myoepithelial cells for ejection of milk
What is the purpose of fat surrounding breast tissue? - protection
support
provides space for growth
What purpose do nerves serve in the breasts? - Intercostal nerves 3, 4 and 5 deal with breast tissue
- innervation to the nipple tells the brain to produce oxytocin when breast feeding
- emptying of the alveolus tells the breast to make more milk
