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Jun. 16th, 2010|04:33 pm |
http://en.wikipedia.org/wiki/Mammary_gland
"True secretory alveoli only develop in pregnancy, when rising levels of estrogen and progesterone cause further branching, together with an increase in adipose tissue and a richer blood flow."
"After lactation, decreased prolactin level and stop of baby suckling cause mammary involution. All alveoli and secretory duct structure collapse by programmed cell death (apoptosis) and autophagy for lack of growth promoting factors either from the ECM or circulating hormones."
То есть именно: перед кормлением - вырастают, после кормления - растворяются, ты - хуй. |
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