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Lactation_1
ASCI112Midterm3
Question | Answer |
---|---|
hormonal regulation of lactation: during gestation: | *high progesterone, stimulates mammary alveoli development, *estradiol, stimulates alveolar ducts, inhibits prolactin release, inhibits prolactin influence on mammary gland |
post partum: | progesterone and estradiol rapidly decline, prolactin secretion no longer inhibited, stimulates mammary alveoli milk production |
suckling response | stimulates release of oxytocin |
oxytocin | stimulates smooth muscle contraction of alveolar ducts, milk expressed, milk let down reflez, stimulates uterine smooth muscle contractions |
cessation of suckling | milk accumulates, inhibits prolactin secretion, milk production stops, involution of mammary glands |
milk composition dependent upon | components, species, state of lactation, non nutritive factos, completeness of milking |