Questions and Answers
1. Where does breast tissue normally develop
ANS Along the breast line
- located from under the arms down to the groin
2. What are the 3 stages of early breast development
ANS 1. In utero
2. First 2 months of life
3. Puberty
3. Breast development during menstruation
ANS Estrogen: Induces Ductal Systemdevelopment
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,- Progesterone: Induces Lobular-Alveolar development
4. What is Lactogenesis
ANS The initiation of milk production
5. How many stages of Lactogensis are there
ANS 4
6. What stages of Lactogenesis occur during pregnancy
ANS 1 and 2
7. Lactogenesis 1
: ANS Ductal and Lobular-Alveolar systems grow at an acceleratedrate
(influenced by hormones)
- breasts enlarge
- high progesterone levels cause an increase in alveoli
- colostrum begins to produce in the alveoli
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, -
8. When does Lactogenesis 1 occur
ANS around 16 weeks
9. Lactogenesis 2
: The placenta is released from the uterus and progesteronelevels drop
- this causes the alveolar cells to begin to release milk and allows them to continue
to produce more milk
-
10. How long does Lactogenesis 2 last
ANS 2-4 days
11. What are the 5 main areas of the breast
ANS - Upper Inner
- Lower Inner
- Upper Outer
- Lower Outer
- Tail of Spence
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