APFIVE Lactation Positive Feedback Mechanism
Which molecular interaction in the mammary gland epithelium most directly contributes to the positive feedback nature of lactation?
A
Progesterone stimulates alveolar cell proliferation
B
Oxytocin binding causes myoepithelial cell contraction and milk ejection
C
Estrogen downregulates prolactin receptor expression
D
Prolactin inhibits dopamine production in the hypothalamus
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