Where does breast tissue normally develop? - ANSWER-Along the breast line
- located from under the arms down to the groin
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