let-down reflex

milk-e·jec·tion re·flex

release of milk from the breast following tactile stimulation of the nipple; the afferent path is postulated to exist from the nipple to the hypothalamus; the efferent limb is represented by the neurohypophysial release of oxytocin into the systemic circulation; contraction of myoepithelial elements within the breast, caused by oxytocin, moves milk into the collecting ducts and toward the nipple. Synonym(s): let-down reflex, milk let-down reflex

let-down reflex

Obstetrics A physiologic postpartum response evoked by sucking–or negative mechanical pressure on the ♀ nipple or by psychologic stimuli, causing the release–'let-down' of breast milk in a nursing mother. See Breast milk.

单词	let-down reflex
释义	DictionarySeebreastfeeding let-down reflex milk-e·jec·tion re·flex release of milk from the breast following tactile stimulation of the nipple; the afferent path is postulated to exist from the nipple to the hypothalamus; the efferent limb is represented by the neurohypophysial release of oxytocin into the systemic circulation; contraction of myoepithelial elements within the breast, caused by oxytocin, moves milk into the collecting ducts and toward the nipple. Synonym(s): let-down reflex, milk let-down reflex let-down reflex Obstetrics A physiologic postpartum response evoked by sucking–or negative mechanical pressure on the ♀ nipple or by psychologic stimuli, causing the release–'let-down' of breast milk in a nursing mother. See Breast milk.
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