Questions and 100%Verified Answers.
Different stages of breast development
- Embryogenesis
- Mammogensis
- Lactogenesis 1
- Lactogenesis 2
- Lactogenesis 3 - ANSWER 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 - ANSWER 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
Tail of spence: What is it, symptoms - ANSWER Mammary gland tissue that
extends to axillary area, connected to milk ducts --> can cause swollen armpits &
mastitis
Accessory tissue: Where are they found? Can they lactate? - ANSWER 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 - ANSWER 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.
Hypoplasia, what is it? - ANSWER 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
- postions that are helpful for let down - ANSWER Myoepitheal cells encase the
aveoli, contract in response to oxytocin. In response to sucking oxytocin increases
Tingling, warmth, fullness, dripping, contractions
helpful in australian/saddle
What is breast milk composed of? - ANSWER - Fats: most variable, help brain