Questions and 100% Correct Answers | Latest
Update 2026/2027 | RATED A+.
Different stages of breast development
- Embryogenesis
- Mammogensis
- Lactogenesis 1
- Lactogenesis 2
- Lactogenesis 3 - CORRECT ANSWERS
Embryogenesis: mammary gland devo while 5 wk embryo
Mammogenesis: @ puberty, estrogen influences growth of ducts
and buds
Lactogenesis 1: completion of mammary development from
placenta stimulation; ducts stimulated + colostrum secretion at
16 wks
Lactogenesis 2: Secretory activation when placenta out --> decr
progesterone --> inc prolactin --> inc milk supply
Lactogenesis 3: Milk removal --> mature milk prod; Infant
sucking= ^ oxytocin= let down.
Estrogen
,Progesterone
Prolactin
Oxytocin
TSH - CORRECT ANSWERS Estrogen - ^ during
pregnancy; stim growth in ductile system
Progesterone - ^ during pregnancy; stim alveoli and lobes
Prolactin - frm ant pituitary gland; lands on prolactin receptor
sites to start milk prod
Oxytocin - from post pituitary gland; cause LETDOWN
TSH - ^ responsiveness of mammary cells
Accessory tissue: Where are they found? Can they lactate? -
CORRECT ANSWERS Diagonal line from axilla to groin
area
- can lactate & undergo malignant change
Flat nipples
Pseudo inverted nipple
Retracted nipple
Inverted nipple
, - possible issues, short shank, solutions - CORRECT
ANSWERS Flat - remains flat after stimulation or retract
with compression (short shank) --> diff w/ latch
Pseudo - seems inverted but erect upon stimulation
Retracted - retracts upon stimulation
Inverted - retracted at rest &s stimulation
Nipple shield may help.
Tail of spence: What is it, symptoms - CORRECT ANSWERS
Mammary gland tissue that extends to axillary area, connected
to milk ducts --> can cause swollen armpits & mastitis
Hypoplasia, what is it? - CORRECT ANSWERS
Underdevelopment, insufficient glandular tissue --> can lead to
insufficient milk
Active let down
- How is milk ejected into ducts from alveoli? aka let down
- signs of let down