Breast Differentiation
Visible differentiation occurs at puberty, when estradiol and other hormones cause breasts to develop in girls. However, fetal or neonatal androgens may modulate later breast development by reducing the capacity of breast tissue to respond to later estrogen.
Read more about this topic: Sexual Differentiation
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“Through light-obliterating garden foliage what magic drum?
Down limb and breast or down that glimmering belly move his mouth and sinewy tongue.
What from the forest came? What beast has licked its young?”
—William Butler Yeats (1865–1939)
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